NSPT-LOCKS

Transcription

NSPT-LOCKS

New Standard Power Transmission
NSPT-LOCKS
High Quality Superior Products
Designed according to international standards.
High quality steel with special treatment.
Huge stock for all series of standard products
for immediate delivery.
528
NSPT-LOCKS
Catalog
General Introduction
P534
P540
P549
P556
P567
P571
P575
P578
P582
P587
B
E
D
F(A.B)
SD
SK
HL
HLL
T
ML/ML-B
NSPT-LOCKS
NSPT-LOCKS
NSPT-LOCKS
NSPT-LOCKS
NSPT-LOCKS
NSPT-LOCKS
NSPT-LOCKS
NSPT-LOCKS
NSPT-LOCKS
NSPT-LOCKS
ANSI
529
NSPT-LOCKS
Selection Guide of NSPT-LOCKS
NSPT, Inc. is capable of producting nine series of NSPTLOCKS identified as type B, E, D, F (A, B), SD, HL, SK, T, and
ML. Each series has its own unique features and operation
requirements. It is very important to select the right type of NSPTLOCKS that is best suitable for the desired performance. The
detailed selection principles will involve the following essential
factors:
NSPT-LOCKS is an advanced fundamental mechanical
part widely used in the international market nowadays. It can be
used for mechanical joints under various working loads.
Pressures and frictional forces through tightened high-tension
bolts provide the secure connections between shafts and hubs.
1. The Desired
Shaft Diameter
It is one kind of connecting devices that requires no keys.
Connection with NSPT-LOCKS is a new method of high
technical joint that has been widely used in many
transmission mechanisms. It has many important and unique
advantages and characteristics in comparison to the
2. The Transmitting NSPT-LOCKS
traditional mechanical joints.
Torque
1. Using NSPT-LOCKS can help to reduce the manufacturing
precision
requirements
of
joint
components.
Determine the shaft diameter on which
the NSPT-LOCKS are going to be
installed. Different series of products
are designed for different shaft
diameters.
Over-
should be selected
according to the maximum transmitting
torque of the mechanical structure. The
differences between NSPT-LOCKS are
great in terms of transmitting torques.
consideration of the interference and clearance of this type of
locks will not make any difference in use. In fact, it is a good
way to reduce the production and operation costs by
3. The Axial Load
of Shaft
Besides of the transmitting torques, the
axial load has to be taken into
consideration when choosing the NSPTLOCKS.
4. The Safety
Load
When choosing the matching shafts
and hubs, the maximum axial safety
load must be larger than transmitting
torque and axial load in order to ensure
that the minimum cross section of the
shaft and/or assigned torque.
5. The Hub
Strong pressure will be applied onto the
hub when NSPT-LOCKS is installed.
Selecting the right material is very
important for the pressure resistance for
this type of joint. The outside diameter of
the hub should be designed based on
different series of NSPT-LOCKS to
ensure that the minimum axial cross
section can bear the required load.
6. The Designation
Assurance
Coefficient
The rated transmitting torque and axial
load for NSPT LOCKS are based on the
maximum values transmitted by the
locks. The assurance coefficient has not
been taken consideration. The starting
load must be included according to
conditions and surroundings and then
select the coefficient.
reducing the precision within a reasonable range.
2. NSPT-LOCKS is designed for easy installation, which
requires no additional heating and/or pressure equipment.
The components can be firmly installed by twisting the
tightening bolts according to the procedures and relevant
torques. On the other hand, the disassembling is as simple as
loosening the tightened screws from the taper holes.
3. NSPT-LOCKS can keep the level of precision without any
clearance or keyway connections. It is used for effectively
transmitting the forces under heavy load with a stable and
long-lasting lifetime. This advantage makes NSPT-LOCKS
become one of the best choices for high precious
transmission mechanisms.
4. When NSPT-LOCKS are installed in axial direction, the
location, dimension and other phase position angle can be
adjusted freely without additional axial fixing device.
7.Environment
Surrounded
530
When
using
NSPT-LOCKS,
the
surroundings have to be considered such
as the environmental temperature,
humidity, corrosiveness, etc. Those
conditions will affect the selection of NSPTLOCKS.
NSPT-LOCKS
Type B NSPT-LOCKS
Suitable shaft diameter: inch 3/4"-133/8"
Rated transmitting torque: 177-165200 ft-lbs
B NSPT-LOCKS are standard universal locks. They can be
easily self installed and can be used for over-sized shafts with
diameters over 40".
The material can be carbon steel or stainless steel.
Type E NSPT-LOCKS
Suitable shaft diameter: inch 3/8"-7"
Rated transmitting torque: 5.2-13496 ft-lbs
The construction of type E NSPT LOCKS is the most compact
NSPT-Locks with low production cost. When using type E NSPTLOCKS, there is no need to use balancing transmitting parts.
However, they must be compressed for a tight joint through
type F or type H tightening flange.
Type D NSPT-LOCKS
D NSPT-LOCKS is the heavier version of type B NSPT-LOCKS.
The transmitting power is two or three times more than type B
locks. They can be easily self-installed.
Type F NSPT-LOCKS
Type F NSPT-LOCKS are a simpler type than type B NSPTLOCKS. They are divided into two types: type FA and type FB.
There are a few differences between these two types due to
different working situations. Type F NSPT-LOCKS can be selfinstalled.
531
NSPT-LOCKS
Type SD NSPT-LOCKS
Suitable shaft diameter: metric φ24-φ300 (mm)
inch 15/16"-1113/16"
Rated transmitting torque: 0.205-290 KN.M
151-213875 ft-lb
SD NSPT-LOCKS belong to the series of the outwardly installed
locks. They can be used for shafts with large diameters to
transmit great torque and are especially suitable for cannon.
Type HL/HLL NSPT-LOCKS
inch 5/8"-23/4"
Rated transmitting torque: 0.038-1.24 KN.M
28-914.5 ft-lb
HL NSPT-LOCKS are suitable for shafts with small diameters
and can be installed with only one nut. It can be self-installed
fast and conveniently.
Type SK NSPT-LOCKS
inch 5/8"-41/3"
Rated transmitting torque: 0.126-7.20KN.M
93-5310 ft-lb
SK NSPT-LOCKS are the heavier version of SD type. They are
suitable for joint shafts and can transmit bigger torque. They
can replace couplings in some cases.
Type T NSPT-LOCKS
inch 1/4"-51/8"
Rated transmitting torque: 0.012-25KN.M
9-18500ft-lb
T NSPT-LOCKS are suitable for shafts with small diameters and
can be sealed for dust and/or water resisting purposes. They
have simple structures and can be self-installed.
532
NSPT-LOCKS
Suitable for Shaft:
Metric: φ19⨠φ340 (mm)
Iinch:3/4"-133/8"
B NSPT-LOCKS is a commonly used standard type locks. If
this type lock is used, the machining precision of the joint
components can be reduced since over-consideration of
the interference and precision will make no difference in
use. The reasonable reduction of the precision will further
reduce the machining time and costs.
By using B NSPT-LOCKS, self-installation can be easily
performed. The strength of the connection is dependent on
the frictional forces between the lock, the hub and the shaft.
It is one type of non-clearance joint that requires no keys.
This will save even more time and costs since no key
machining, pressing installation, or heat installation are
required. Its great stability can greatly increase the working
efficiency and the expected lifetime of mechanisms.
Expression for Type B NSPT-LOCKS
NL 60 X 90 B
NSPT LOCK Type B
Bore Diameter D
Shaft Diameter d
NSPT-LOCKS Code
B NSPT-LOCKS
Conversion: 1 inch= 25.40mm
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
533
NSPT-LOCKS
Inches
L1
L
l
B
NSPT-LOCKS
NSPT
Catalog
NL0.34B
NL0.78B
NL1.00B
NL1.18B
NL1.316B
NL1.14B
NL1.38B
NL1.716B
NL1.12B
NL1.58B
NL1.1116B
NL1.34B
NL1.78B
NL1.1516B
NL2.00B
NL2.18B
NL2.316B
NL2.14B
NL2.38B
NL2.716B
NL2.12B
NL2.916B
NL2.58B
NL2.1116B
NL2.34B
NL2.78B
NL2.1516B
NL3.00B
NL3.18B
NL3.14B
NL3.38B
NL3.716B
NL3.12B
NL3.34B
NL3.1516B
NL4.00B
NL4.716B
NL4.12B
NL4.1516B
NL5.00B
Conversion:1 inch = 25.40mm
INCH SERIES
INCHES
Size
d
D
l
L
L1
3/4
0.750
1.850
1
11/8
13/16
11/4
13/8
17/16
1.000
1.125
1.188
1.250
1.375
1.4375
1.500
1.625
1.688
1.750
1.875
1.9375
2.000
2.125
2.188
2.250
2.375
2.4375
2.500
2.562
2.625
2.6875
2.750
2.875
2.9375
3.000
3.125
3.250
3.375
3.4375
3.500
3.750
3.9375
4.000
4.4375
4.500
4.9375
5.000
1969
2.165
2.159
2.362
2.365
2.559
2.559
2.953
2.953
2.953
3.150
3.150
3.346
3.346
3.543
3.543
3.531
3.740
3.740
3.737
4.331
4.331
4.337
4.528
4.528
4.724
4.724
4.921
4.921
5.118
5.118
5.305
5.709
5.843
6.496
6.496
7.087
7.087
0.669
0.669
0.669
0.669
0.669
0.669
0.669
0.669
0.669
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
1.024
1.024
1.024
1.024
1.339
1.339
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.299
1.299
1.299
1.299
1.436
1.436
1.083
1.083
1.083
1.083
1.083
1.083
1.083
1.083
1.083
1.319
1.319
1.319
1.319
1.319
1.319
1.319
1.319
1.319
1.319
1.319
1.319
1.319
1.555
1.555
1.555
1.555
1.555
1.555
1.555
1.555
1.555
1.555
1.555
1.555
1.850
1.850
1.850
1.850
2.047
2.047
1/2
15/8
111/16
13/4
17/8
115/16
2
21/8
23/16
21/4
23/8
27/16
21/2
29/16
25/8
211/16
23/4
27/8
215/16
3
3 /8
31/4
33/8
37/16
31/2
33/4
315/16
4
47/16
41/2
415/16
5
φD
φd
l
534
Mt
ft-lb
Axial
force lb
pw
psi
pn
psi
202
267
289
361
383
492
542
672
709
1143
1166
1230
1295
1353
1597
1729
1748
1798
1888
2212
2269
2322
3169
3241
3328
3451
3545
3581
3762
4421
4558
4630
4775
5716
7054
7112
9044
9623
12445
12916
6525
7200
7200
8100
8100
9450
9675
11025
11025
16875
16875
17100
16650
16875
16875
19800
19800
19800
19800
19800
19800
22050
22050
22050
29700
29700
29475
29475
29475
29475
33300
33300
33075
37575
43875
43875
43650
49725
49725
62100
32010
29880
28450
28450
26320
29170
27030
28450
27030
33430
32720
31300
29880
28450
32300
29880
29170
28450
27030
29800
29170
28450
31300
30590
29880
28450
27740
27030
25610
29170
27740
26320
25610
27740
27740
27740
28450
26320
24900
23480
13520
14230
14230
14230
14230
15650
15650
16360
16360
18500
18500
18500
17070
17070
19210
19210
17790
17790
17790
19210
19210
19210
18500
18500
18500
17790
17790
17070
17070
18500
18500
17790
17790
19210
19210
18500
19210
19210
16360
16360
LOCKING SCREW
No.x Type
8xM6
8xM6
8xM6
10xM6
10xM6
12xM6
12xM6
14xM6
14xM6
12xM8
12xM8
12xM8
12xM8
12xM8
14xM8
14xM8
14xM8
14xM8
14xM8
16xM8
16xM8
16xM8
14xM10
14xM10
14xM10
14xM10
14xM10
14xM10
14xM10
16xM10
16xM10
16xM10
16xM10
18xM10
14xM12
14xM12
16xM12
16xM12
20xM12
20xM12
Ms
ft-lb
11
11
11
11
11
11
11
11
11
27
27
27
27
27
27
27
27
27
27
27
27
27
51
51
51
51
51
51
51
51
51
51
51
51
92
92
92
92
92
92
NSPT-LOCKS
Inches
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
B
NSPT-LOCKS
METRIC INCHES
INCH SERIES
INCHES
Size
d
D
Size
d
D
l
L
L1
20x47
22x47
24x50
25x50
28x55
30x55
32x60
35x60
38x65
40x65
42x75
0.787
0.866
0.945
0.984
1.102
1.181
1.260
1.378
1.496
1.575
1.654
1.850
1.850
1.969
1.969
2.165
2.165
2.362
2.362
2.559
2.559
2.953
3/4
0.750
1.850
45x75
48x80
50x80
1.772
1.890
1.969
2.953
3.150
3.150
55x85
2.165
3.346
60x90
2.362
3.543
65x95
2.559
3.740
70x110 2.756
4.331
75x115 2.953
4.528
80x120 3.150
4.724
85x125 3.346
4.921
90x130 3.543
95x135 3.740
100x145 3.937
5.118
5.315
5.709
1
11/8
1 3/16
1 1/4
1 3/8
1 7/16
1 1/2
1 5/8
1 11/16
1 3/4
1 7/8
1 15/16
2
2 1/8
2 3/16
2 1/4
2 3/8
2 7/16
2 1/2
2 9/16
2 5/8
2 11/16
2 3/4
2 7/8
2 15/16
3
3 1/8
3 1/4
3 3/8
3 7/16
3 1/2
3 3/4
3 15/16
4
1.000
1.125
1.188
1.250
1.375
1.4375
1.500
1.625
1.688
1.750
1.875
1.9375
2.000
2.125
2.188
2.250
2.375
2.4375
2.500
2.562
2.625
2.6875
2.750
2.875
2.9375
3.000
3.125
3.250
3.375
3.4375
3.500
3.750
3.9375
4.000
1.969
2.165
2.159
2.362
2.365
2.559
2.559
2.953
2.953
2.953
3.150
3.150
3.346
3.346
3.543
3.543
3.531
3.740
3.740
3.737
4.331
4.331
4.337
4.528
4.528
4.724
4.724
4.921
4.921
5.118
5.118
5.305
5.709
5.843
110x155 4.331
6.102
120x165 4.724
6.496
130x180 5.118
7.087
140x190 5.512
150x200 5.906
160x210 6.299
7.480
7.874
8.268
4 7/16
4 1/2
4 15/16
5
5 7/16
5 1/2
4.4375
4.500
4.9375
5.000
5.4375
5.500
6.496
6.496
7.087
7.087
7.480
7.492
6
6 7/16
6 1/2
8.858
6 15/16
7
9.252
7 1/2
9.843
7 7/8
10.236
6.000
6.4375
6.500
6.9375
7.000
7.500
7.875
8.268
8.858
8.858
9.252
9.252
9.823
10.236
0.669
0.669
0.669
0.669
0.669
0.669
0.669
0.669
0.669
0.669
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
1.024
1.024
1.024
1.024
1.024
1.339
1.339
1.339
1.339
1.339
1.339
1.496
1.496
1.496
1.496
1.811
1.811
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.787
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
0.945
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.102
1.299
1.299
1.299
1.299
1.299
1.436
1.436
1.436
1.436
1.436
1.436
1.732
1.732
1.732
1.732
2.047
2.047
1.024
1.024
1.024
1.024
1.024
1.024
1.024
1.024
1.024
1.024
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.26
1.496
1.496
1.496
1.496
1.496
1.496
1.496
1.496
1.496
1.496
1.496
1.496
1.772
1.772
1.772
1.772
1.772
1.969
1.969
1.969
1.969
1.969
1.969
2.283
2.283
2.283
2.283
2.598
2.598
170x225 6.693
180x235 7.087
190x250 7.480
200x260 7.874
535
Mt
ft-lb
Axial
force lb
202
6525
224
6525
267
7200
289
7200
361
8100
383
8100
492
9450
542
9675
672
11025
709
11025
1143 16875
1166 16875
1230 17100
1295 16650
1353 16875
1597 16875
1729 19800
1748 19800
1798 19800
1888 19800
2212 19800
2269 19800
2322 22050
3169 22050
3241 22050
3328 29700
3451 29700
3545 29475
3581 29475
3762 29475
4421 29475
4558 33300
4630 33300
4775 33075
5716 37575
7054 43875
7112 43875
7706 43650
9044 43650
9623 49725
12445 49725
12916 62100
15123 62100
15340 67950
17727 74025
20549 79875
23371 79875
24312 89100
27351 89100
28002 96975
32344 112950
38712 121050
pw
psi
pn
psi
32010
29880
29880
28450
28450
26320
29170
27030
28450
27030
33430
32720
31300
29880
28450
32300
29880
29170
28450
27030
29800
29170
28450
31300
30590
29880
28450
27740
27030
25610
29170
27740
26320
25610
27740
27740
27740
25610
28450
26320
24900
23480
24190
23480
24190
24190
24900
23480
24900
24190
22050
22050
13520
13520
14230
14230
14230
14230
15650
15650
16360
16360
18500
18500
18500
17070
17070
19210
19210
17790
17790
17790
19210
19210
19210
18500
18500
18500
17790
17790
17070
17070
18500
18500
17790
17790
19210
19210
18500
17790
19210
19210
16360
16360
17790
17790
17790
18500
17070
17070
18500
18500
17070
17070
LOCKING SCREW
No.x type
Ms
ft-lb
8xM6
8xM6
9xM6
9xM6
10xM6
10xM6
12xM6
12xM6
14xM6
14xM6
12xM8
12xM8
12xM8
12xM8
12xM8
14xM8
14xM8
14xM8
14xM8
14xM8
16xM8
16xM8
16xM8
14xM10
14xM10
14xM10
14xM10
14xM10
14xM10
14xM10
16xM10
16xM10
16xM10
16xM10
18xM10
14xM12
14xM12
14xM12
16xM12
16xM12
20xM12
20xM12
22xM12
22xM12
24xM12
26xM12
22xM14
22xM14
24xM14
24xM14
28xM14
30xM14
11
11
11
11
11
11
11
11
11
11
27
27
27
27
27
27
27
27
27
27
27
27
27
51
51
51
51
51
51
51
51
51
51
51
51
92
92
92
92
92
92
92
92
92
92
92
142
142
142
142
142
142
Metric
NSPT-LOCKS
L1
L
I
B
NSPT-LOCKS
Catalog
dxD
Fundamental Dimensions
I
L
L1
R
Rated Load
Internal Hexagon Headed Bolt
SIZES
CL19x47B
17
20
26
M6x18
CL20x47B
17
20
26
M6x18
CL22x47B
17
20
26
M6x18
CL25x50B
17
20
26
M6x18
CL28x55B
17
20
26
M6x18
CL30x55B
17
20
26
M6x18
CL35x60B
17
20
26
M6x18
CL38x63B
17
20
26
M6x18
CL40x65B
17
20
26
M6x18
CL42x75B
20
24
32
M8x22
CL45x75B
20
24
32
M8x22
CL50x80B
20
24
32
M8x22
CL55x85B
20
24
32
M8x22
CL60x90B
20
24
32
M8x22
CL65x95B
20
24
32
M8x22
CL70x110B
24
28
38
M10x25
CL75x115B
24
28
38
M10x25
CL80x120B
24
28
38
M10x25
CL85x125B
24
28
38
M10x25
CL90x130B
24
28
38
M10x25
CL95x135B
24
28
38
M10x25
CL100x145B
29
33
45
M12x30
CL105x150B
29
33
45
M12x30
CL110x155B
29
33
45
M12x30
CL120x165B
29
33
45
M12x30
CL125x170B
29
33
45
M12x30
CL130x180B
34
38
50
M12x35
CL140x190B
34
38
50
M12x35
CL150x200B
34
38
50
M12x35
CL160x210B
34
38
50
M12x35
CL170x225B
38
44
58
M14x40
CL180x235B
38
44
58
M14x40
CL190x250B
46
52
66
M14x45
CL200x260B
46
52
66
M14x45
CL210x275B
50
56
72
M16x50
The products in table are in stock items for immediate delivery.
QTY
8
8
8
9
10
10
12
14
14
12
12
12
14
14
16
14
14
14
16
16
18
14
14
14
16
18
20
22
24
26
22
24
28
30
24
536
Ft
KN
26
27
27
30
33
33
40
46
46
65
72
71
83
83
93
132
131
131
148
147
167
192
190
191
218
220
272
298
324
350
386
420
490
525
599
φD
φd
I
Table:1
Pf
MA
G
Mt
KN.M
Mpa
N.M
kg
0.27
0.27
0.30
0.38
0.47
0.50
0.70
0.88
0.92
1.36
1.62
1.77
2.27
2.47
3.04
4.60
4.90
5.20
6.30
6.30
7.90
9.60
9.98
10.50
13.10
13.78
17.60
20.90
24.20
28.0
32.90
37.80
46.50
52.50
62.89
210
210
195
190
185
175
180
185
180
200
210
190
200
180
190
210
195
180
195
180
195
195
185
180
185
180
165
165
170
170
160
165
150
150
151
14
14
14
14
14
14
14
14
14
35
35
35
35
35
35
70
70
70
70
70
70
125
125
125
125
125
125
125
125
125
190
190
190
190
295
0.2
0.24
0.23
0.25
0.30
0.29
0.32
0.33
0.34
0.48
0.57
0.60
0.63
0.69
0.73
1.26
1.33
1.40
1.49
1.53
1.62
2.01
2.10
2.15
2.35
2.95
3.51
3.85
4.07
4.30
5.78
6.05
8.25
8.65
10.10
NSPT-LOCKS
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
B
NSPT-LOCKS
Catalog
dxD
CL220x285B
CL240x305B
CL250x315B
CL260x325B
CL280x355B
CL300x375B
CL320x405B
CL340x425B
CL360x455B
CL380x475B
CL400x495B
CL420x515B
CL450x555B
CL480x585B
CL500x605B
CL530x640B
CL560x670B
CL600x710B
CL630x740B
CL670x780B
CL710x820B
CL750x860B
CL800x910B
CL850x960B
CL900x1010B
CL950x1060B
CL1000x1110B
e
L
50
50
50
50
60
60
72
72
84
84
84
84
96
96
96
96
96
96
96
96
96
96
96
96
96
96
96
56
56
56
56
66
66
78
78
90
90
90
90
102
102
102
102
102
102
102
102
102
102
102
102
102
102
102
Table:2
Rated Load
L1
SIZES
QTY
Ft
KN
72
72
72
72
84
84
98
98
112
112
112
112
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
M16x50
M16x50
M16x50
M16x50
M18x60
M18x60
M20x70
M20x70
M22x80
M22x80
M22x80
M22x80
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
M24x90
26
30
32
34
32
36
36
36
36
36
36
40
40
42
44
45
48
50
52
56
60
62
66
70
75
80
82
620
715
768
800
915
1020
1310
1310
1630
1620
1610
1780
2050
2160
2240
2330
2440
2580
2680
2820
2970
3130
3260
3500
3680
3870
4000
The items in table 2 will be produced made-to-order.
537
Mt
KN.M
68.0
85.5
96.0
104.0
128.0
153.0
210.0
224.0
294.0
308.0
322.0
374.0
461.3
518.4
560.0
617
680
775
844
944
1054
1173
1300
1487
1650
1838
2000
Pf
Mpa
MA
N.M
G
kg
150
160
162
165
145
150
150
145
145
135
130
135
124
124
123
121
120
118
117
116
115
115
112
113
112
112
110
295
295
295
295
405
405
580
580
780
780
780
780
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
11.22
12.2
12.7
13.2
19.2
20.5
29.6
31.3
42.2
44.0
46.0
50.0
65.0
71.0
72.4
83.6
85.0
91.0
94.0
101.0
106.4
112.0
118.0
125.0
132.0
139.0
146.0
Key Elements for Designing and Calculation of B NSPT-LOCKS
1. Determine max torque and max axial load
5. Settlement for the surface roughness and
H . K(N m)
Mmax = 30000
π.n
Fmax =F. K
dimension tolerance
H--Transmission power KW
n--Rotational speed r/min
F--nominal axial force N
K--coefficient needed
Fittng Section
Ra(um)
Surface Roughness
Dimension Precision
Shaft Diameter d
1.6
h8- H9
Bore Diameter D
1.6
H8- H9
Used coefficient sheet for K
No shock load, transmitting with little inertia
1.5- 2.5
Slight shock load,transmitting with middle inertia
2.0- 4.0
Big shock load, transmitting with heavy inertia
3.0- 5.0
6. Installation for NSPT-LOCKS
Clean the NSPT-LOCKS and install it into corresponding
position of hub and shaft (Ref Drawing A). Tighten the bolts
according to the order in Drawing B. The bolts should be
tightened 3 to 4 times up to specified rated torque. After
correct installation, NSPT-LOCKS should be inspected radially
2. Calculate synthetic load and transmitted torque
Mmax
and axially for runouts as per A
Mh
0.05mm, B
0.002Rmm in C.
Mh= M2max+( d xFmax)2
2
Ph
d . Fmax
2
A
Mmax--Required transmitted torque Nm
Fmax--Required transmitted axial force N
Mh--synthetic transmitted torque Nm
d--Transmission shaft diameter mm
Mt--NSPT LOCK rated transmitted torque Nm
Ph
Mt Mh can be used
Mt<Mh need bigger type of NSPT lock or to be install by two
NSPT locks or more together
11
3. Calculation for the hub diameter
Da
1
5
7
∼
.
D Ο∼b+Ka . Ph
Ο b - Ka Ph
B
Da--outside diameter of hub mm
D--inside diameter of hub mm
Ph--suface pressures on hub Mpa
Ο∼b--tensile strength of material
Ka--It should be 0.6 for single NSPT lock, it will be 0.8 when two
NSPT locks or more are installed together
9
3
4
10
8
6
12
2
A
4. Calculation for the inside diameter of cannon
B
d
R(mm)
dB
Ο∼b - 2xPs .K3
Ο∼b
C
dB--inside diameter of cannon mm
d--outside diameter of cannon mm
6b--tensile strength of shaft material Mpa
Ps--pressure on the surface of shaft Mpa
K3--coefficient=0.6
538
7 Disassembling NSPT-LOCKS
Conventional installation for
general power transmission.
Used in pairs for the
usage of greater power
transmission
Loosen and remove
all tightening bolts.
Mounted with shaft
sleeves to connect
transmission between
two shafts. They can
replace couplings in
some cases.
Put unloading bolts into the corresponding tap
holes. Turning the bolts in clockwise
direction and loosen the inner taper rings.
Mounted with couplings
to connect transmission
between two shafts
Installed on both sides
for the usage of greater
power transmission
Pull out the bolts and then, loosen and
remove outer taper rings
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
To disassemble, loosen and remove all tightening bolts. Place
the unloading bolts in corresponding unloading tap holes (ie,
tap holes with bolts zinc plated) and tighten them in turn. Taper
rings on both sides of the NSPT lock can then be gradually
separated. NSPT lock can then be disassembled.
539
When installed with cams, the
position and angle of the cams
can be adjusted accordingly
NSPT-LOCKS
Suitable for Shaft
Metric: φ10̚φ180 (mm)
Inch:3/8"̚7"
E NSPT-LOCKS include two inner and outer taper rings.
The structure is simple and compact. It dose not need a large
installation space, circular without split and is well balance
dynamically.
E NSPT-LOCKS transfer high surface pressures onto the
shaft by the pressing flange. E NSPT-LOCKS transfers high
surface pressures onto the shaft by the pressing flange. The
connection is formed by tightly compressing the shaft and the
taper hole. It is well applicable to the light load and small
space installation.
Type F and type H pressing flange may also be chosen
according to the different shaft diameters and structures.
Expression of NSPT-LOCK Type E
NL 36 X 42 E
NSPT Lock E Type
Out Diameter
Bore Diameter
NSPT-LOCKS Code
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
E NSPT-LOCKS
540
E
NSPT-LOCKS
SIZE
inches
dxD
d
D
Pre-load
Total
force Pt force Pa
lb
lb
INCHES
L
L1
541
Mt
ft-lb
Inches
Axial
force lb
pw
psi
pn
psi
Spacer Diameter
inside
dl inch
outside
dl inch
E
NSPT-LOCKS
E
Inches
NSPT-LOCKS Assembling Diagram:
Using "F" bolt on hubs to assemble E NSPT-LOCKS
E NSPT-LOCKS
Shaft
F NSPT-Flange
Using "H" bolt on hubs to assemble E NSPT-LOCKS
Assembled Part
542
H NSPT-Flange Set Screws
NSPT-LOCKS
NSPT-LOCKS
fundamental
dimensions
RATED LOAD
Pf=100N/mm2
dxD
L
L1
Ft
(KN)
CL10x13E
CL12x15E
CL13x16E
CL14x18E
CL15x19E
CL16x20E
CL17x21E
CL18x22E
CL19x24E
CL20x25E
CL22x26E
CL24x28E
CL25x30E
CL28x32E
CL30x35E
CL32x36E
CL35x40E
CL36x42E
CL38x44E
CL40x45E
CL42x48E
CL45x52E
CL48x55E
CL50x57E
CL55x62E
CL56x64E
CL60x68E
CL63x71E
CL65x73E
CL70x79E
CL71x80E
CL75x84E
CL80x91E
CL85x96E
CL90x101E
CL95x106E
CL100x114E
CL105x119E
CL110x124E
CL120x134E
CL125x139E
CL130x148E
CL140x158E
CL150x168E
CL160x178E
CL170x191E
CL180x201E
4.5
4.5
4.5
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
7.0
7.0
7.0
8.0
8.0
10.0
10.0
10.0
10.0
12.0
12.0
12.0
12.0
14.0
14.0
14.0
17.0
17.0
17.0
17.0
21.0
21.0
21.0
21.0
21.0
28.0
28.0
28.0
28.0
33.0
33.0
3.7
3.7
3.7
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
6.0
6.0
6.0
6.6
6.6
8.6
8.6
8.6
8.6
10.4
10.4
10.4
10.4
12.2
12.2
12.2
15.0
15.0
15.0
15.0
18.7
18.7
18.7
18.7
18.7
25.3
25.3
25.3
25.3
30.0
30.0
1.4
1.67
1.81
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.5
4.8
5.0
5.6
6.0
6.4
7.9
8.1
8.6
9.9
10.5
14.6
15.6
16.2
17.8
22.0
23.5
25.5
25.6
32.0
32.7
34.4
45.0
48.0
51.0
54.0
70.0
73.2
77.0
84.0
92.0
124.0
134.0
143.0
152.5
192.0
204.0
Mt
(KN.M)
0.007
0.01
0.012
0.02
0.023
0.026
0.029
0.033
0.036
0.04
0.05
0.058
0.06
0.078
0.09
0.102
0.139
0.147
0.163
0.20
0.22
0.33
0.38
0.40
0.49
0.62
0.70
0.83
0.93
1.12
1.16
1.29
1.81
2.04
2.29
2.55
3.50
3.82
4.25
5.05
5.75
8.05
9.35
10.70
12.20
16.30
18.30
G
kg
0.002
0.002
0.002
0.005
0.005
0.006
0.006
0.008
0.008
0.01
0.01
0.01
0.01
0.01
0.01
0.015
0.02
0.02
0.02
0.025
0.04
0.043
0.045
0.05
0.06
0.074
0.074
0.08
0.08
0.11
0.12
0.12
0.19
0.20
0.22
0.23
0.38
0.40
0.41
0.45
0.62
0.85
0.91
0.97
1.02
1.50
1.58
φD
Catalog
φd
E
Metric
L1
L
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
543
NSPT-LOCKS
Metric
F
Tightening Flange Type F
Catalog
φD2
φdF
φD1
N-φa
φd1
T
L
Expression of Tightening Flange Type F
F 36 X 42
Outsids Dia. in mm
Bore Dia. in mm
Tightening Flange Type F
G
dxD
d1
D1
dF
D2
T
L
a
(kg)
F10x13
F12x15
F13x16
F14x18
F15x19
F16x20
F17x21
F18x22
F19x24
F20x25
F22x26
F24x28
F25x30
F28x32
F30x35
F32x36
F35x40
F36x42
F38x44
F40x45
F42x48
F45x52
F48x55
F50x57
F55x62
F56x64
F60x68
F63x71
F65x73
F70x79
F71x80
F75x84
F80x91
F85x96
F90x101
F95x106
F100x114
F105x119
F110x124
F120x134
F125x139
F130x148
F140x158
F150x168
F160x178
F170x191
F180x201
10.2
12.2
13.2
14.2
15.2
16.2
17.2
18.2
19.2
20.2
22.2
24.2
25.2
28.2
30.2
32.2
35.2
36.2
38.2
40.2
42.2
45.2
48.2
50.2
55.2
56.2
60.2
63.2
65.2
70.3
71.3
75.3
80.3
85.3
90.3
95.3
100.3
105.3
110.3
120.4
125.4
130.4
140.4
150.4
160.4
170.4
180.4
12.8
14.8
15.8
17.8
18.8
19.8
20.8
21.8
23.8
24.8
25.8
27.8
29.8
31.8
34.8
35.8
39.8
41.8
43.8
44.8
47.8
51.8
54.8
56.8
61.8
63.8
67.8
70.8
72.8
78.7
79.7
83.7
90.7
95.7
100.7
105.7
113.7
118.7
123.7
133.6
138.6
147.6
157.6
167.6
177.6
190.6
200.6
28
28
28
35
35
35
35
35
40
40
40
45
45
45
50
50
58
58
58
62
62
70
70
70
78
86
86
92
92
98
98
104
110
116
120
126
134
141
146
156
175
186
196
206
216
232
242
36
36
36
45
45
45
45
45
50
50
50
55
55
55
60
60
68
68
68
74
74
82
82
82
90
102
102
108
108
114
114
120
130
136
140
146
154
165
170
180
203
214
224
234
244
264
274
8
8
8
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
12
12
12
12
12
12
16
16
16
16
16
16
16
20
20
20
20
20
24
24
24
28
28
28
28
28
30
30
13
13
13
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
22
22
22
22
22
22
26
26
26
26
28
28
28
32
32
32
32
32
40
40
40
46
46
46
46
46
50
50
4.4
4.4
4.4
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
6.6
6.6
6.6
6.6
6.6
6.6
8.8
8.8
8.8
8.8
8.8
8.8
8.8
11
11
11
11
11
13
13
13
15.2
15.2
15.2
15.2
15.2
17.2
17.2
0.06
0.06
0.06
0.12
0.12
0.12
0.12
0.12
0.14
0.14
0.14
0.16
0.16
0.17
0.18
0.19
0.23
0.23
0.27
0.31
0.35
0.36
0.37
0.38
0.42
0.73
0.77
0.82
0.85
0.89
0.90
0.96
1.42
1.53
1.56
1.67
1.90
2.05
2.15
2.5
2.68
2.8
3.15
3.5
3.95
4.5
5.1
544
NSPT-LOCKS
Metric
H Tightening Flange Type H
H10x13
H12x15
H13x16
H14x18
H15x19
H16x20
H17x21
H18x22
H19x24
H20x25
H22x26
H24x28
H25x30
H28x32
H30x35
H32x36
H35x40
H36x42
H38x44
H40x45
H42x48
H45x52
H48x55
H50x57
H55x62
H56x64
H60x68
H63x71
H65x73
H70x79
H71x80
H75x84
H80x91
H85x96
H90x101
H95x106
H100x114
H105x119
H110x124
H120x134
H125x139
H130x148
H140x158
H150x168
H160x178
H170x191
H180x201
10.2
12.2
13.2
14.2
15.2
16.2
17.2
18.2
19.2
20.2
22.2
24.2
25.2
28.2
30.2
32.2
35.2
36.2
38.2
40.2
42.2
45.2
48.2
50.2
55.2
56.2
60.2
63.2
65.2
70.3
71.3
75.3
80.3
85.3
90.3
95.3
100.3
105.3
110.3
120.4
125.4
130.4
140.4
150.4
160.4
170.4
180.4
12.8
14.8
15.8
17.8
18.8
19.8
20.8
21.8
23.8
24.8
25.8
27.8
29.8
31.8
34.8
35.8
39.8
41.8
43.8
44.8
47.8
51.8
54.8
56.8
61.8
63.8
67.8
70.8
72.8
78.7
79.7
83.7
90.7
95.7
100.7
105.7
113.7
118.7
123.7
133.6
138.6
147.6
157.6
167.6
177.6
190.6
200.6
dF
T
L
a
(kg)
11
12
14
16
16
19
20
22
24
26
29
32
34
36
38
42
45
47
50
51
55
60
65
70
75
80
85
88
98
104
108
118
128
138
148
158
4
4
4
5
5
5
5
5
7
7
7
10
10
12
12
12
12
12
12
12
12
12
12
12
12
16
16
16
16
20
20
20
20
20
20
20
20
24
24
24
28
28
28
28
28
30
30
9
9
9
13
13
13
13
13
15
15
15
18
18
20
20
20
20
20
20
22
22
22
22
22
22
26
26
26
26
32
32
32
32
32
32
32
32
40
40
40
46
46
46
46
46
50
50
8.8
8.8
8.8
11
11
11
11
11
13
13
13
5.5
5.5
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
8.8
8.8
8.8
8.8
11
11
11
11
11
11
11
11
13
13
13
15.4
15.4
15.4
15.4
15.4
17.2
17.2
0.04
0.04
0.04
0.07
0.07
0.07
0.07
0.07
0.09
0.09
0.10
0.10
0.11
0.12
0.12
0.15
0.16
0.18
0.20
0.23
0.23
0.25
0.25
0.27
0.50
0.51
0.53
0.55
0.58
0.59
0.63
0.68
0.92
1.0
1.02
1.09
1.24
1.38
1.46
1.63
1.75
1.82
2.05
2.28
2.59
3.10
3.45
545
L
T
φD1
D1
φd1
d1
φdF
dxD
G
N-φa
Catalog
Expression of Tightening Flange Type H
H 36 X 42
Out Dia. in mm
Bore Dia. in mm
Tightening Flange Type H
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
L
φd1
φD1
N-φa
N-φa
φdF
φD2
φD1
φdF
φd1
T
T
L
Catalog
dxD
F10x13
F12x15
F13x16
F14x18
F15x19
F16x20
F17x21
F18x22
F19x24
F20x25
F22x26
F24x28
F25x30
F28x32
F30x35
F32x36
F35x40
F36x42
F38x44
F40x45
F42x48
F45x52
F48x55
F50x57
F55x62
F56x64
F60x68
F63x71
F65x73
F70x79
F71x80
F75x84
F80x91
F85x96
F90x101
F95x106
F100x114
F105x119
F110x124
F120x134
F125x139
F130x148
F140x158
F150x168
F160x178
F170x191
F180x201
dF
SIZES
28
M4x18
35
M5x20
N
Ms
(kgf.m)
Catalog
E
(kgf)
0.39
1680
0.77
2700
0.77
3600
dxD
H10x13
H12x15
H13x16
H14x18
H15x19
H16x20
H17x21
H18x22
H19x24
H20x25
H22x26
H24x28
H25x30
H28x32
H30x35
H32x36
H35x40
H36x42
H38x44
H40x45
H42x48
H45x52
H48x55
H50x57
H55x62
H56x64
H60x68
H63x71
H65x73
H70x79
H71x80
H75x84
H80x91
H85x96
H90x101
H95x106
H100x114
H105x119
H110x124
H120x134
H125x139
H130x148
H140x158
H150x168
H160x178
H170x191
H180x201
3
40
M5x20
4
45
50
M5x20
58
M5x20
5
0.77
4500
0.77
5400
1.3
7620
6
62
M6x25
70
M6x25
8
1.3
10160
78
M6x25
10
1.3
12700
M8x35
8
3.2
18400
86
92
98
98
104
110
116
120
126
134
141
146
156
175
186
196
206
216
232
242
M8x35
10
3.2
23000
M10x40
8
6.3
29600
M10x40
9
6.3
33300
6.3
37000
M10x40
M12x50
12
75600
M14x60
19
90700
M16x70
30
118800
10
546
dF
SIZES
N
M8x30
M10x35
1
M12x40
11
12
14
M5x20
16
M6x25
19
20
22
24
26
29
32
34
36
38
42
45
47
50
51
55
60
65
70
75
80
85
88
98
104
108
118
128
138
148
158
Ms
(kgf.m)
E
(kgf)
3.2
2300
6.3
3700
12
7560
0.77
2700
1.3
3810
3
M6x25
4
.3
5080
M6x25
6
1.3
7620
M6x25
8
1.3
10160
M8x35
6
3.2
13800
M8x35
8
3.2
18400
M10x40
8
6.3
22200
M10x40
10
6.3
29600
M10x40
10
6.3
29600
M10x40
12
6.3
44400
M12x50
12
75600
M14x60
19
90700
M16x70
30
118800
10
Key Elements for Designing and Calculation of E NSPT-LOCKS
1. The charcteristic parameters of NSPT locks E type
A. the relationship between transmitting torque,
axial load and surface pressure.
2.00
1.85
4
3
1.55
Ft
Mt
Ps
2
Ph
1.00
Mt1
Ft1
Ps1
1
Ph1
Mt
Mt1
F
Fo
Fo
Fe
Fe
F
0
F
proportion diagram of transmission power
when grouped of E NSPT-LOCKS are used
t
φd
φD
2. Determine the surface roughness and dimension tolerance
Inner
Diameter d
d
2
Fo
Tolerance of
Tolerance of
Shaft Diameter Bore Diameter
10-38
h6
H7
40-150
h8
H8
Surface
Roughness
1.6
1.6
3. Determine max torque needed and max axial load
. K(N m)
M max = 30000H
π.n
F max =Ft . K
Ph
F
Pf
Mt
Mt--transmitting power N.m=N.u.-Ft--rated axial force N=N.U=2Mt-Ps.Ph--Pressure on hub Mpa
Fo--initial pressure
Fe--effective pressure
F--the whole pressure
1.5- 2.5
2.0- 4.0
3.0- 5.0
B. Operational diagram when using grouped of E NSPT locks
2
Conversion
1 ft-Ibs.= 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
conceptual diagram for how to use
grouped of E NSPT Locks.
547
Mmax
Mh
5. Determination for the dimensions of pressing flange
lF
lB
d . Fmax
2
IF
2xdG
1.5xdG
IB
IF
Mt Mh can be used
Mt<Mh need bigger type of NSPT lock or to be installed by two
IB
dpB=D+8+dG
dpS=d+8-dG
Shaft diameter d=φ32-φ150(mm)
dpB=D+10+dG
dps=d-10-dG
Shaft diameter d=φ10-φ30(mm)
Conversion
1 ft-Ibs.= 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
Conventional Installation of E NSPT-LOCKS
1
10
11
2
9
12
3
8
13
4
7
14
5
6
15
548
NSPT-LOCKS
Suitable for Shaft Diameter
Metric: φ45⨠φ340 (mm)
Inch:13/4"⨠133/8"
D NSPT-LOCKS is a heavier type than type B with a connecting
capacity of 2 to 3 times over type B. It has the same
dimensions as type B NSPT-LOCKS but is more economical
than type B since it has more capacity.
The characteristics of D NSPT-LOCKS are the ease of selfinstallation and good concentricity. The guiding taper surface
does not require special machining, and the central bore of the
hub is in a straight line with the surface of the shaft. It reduces
the production time and costs.
D NSPT-LOCKS have high installation precision and
connecting capacity. The connecting function is provided by
the friction and pressures between the lock, shaft and hub.
There is no need for machining keys since it connects without
slot ot key. This type of NSPT-LOCKS is commonly used in
transmission with heavy duty connections and/or large
torques.
Expression of NSPT-LOCKS Type D
NL 200 X 260 D
NSPT Lock Type D
Outside Diameter D
Shaft Diameter d
NSPT-LOCKS Code
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
D NSPT-LOCKS
549
NSPT-LOCKS
Inches
L1
D
φD
φd
L
e
NSPT-LOCKS
NSPT
Catalog
INCH SERIES INCHES
Size
d
D
1
1.000
2.165
NL1.00D
1.188
2.165
13/16
NL1.316D
11/4
1.250
2.632
NL1.14D
1.375
2.362
13/8
NL1.38D
17/16
1.438
2.362
NL1.716D
1.500
2.953
11/2
NL1.12D
15/8
1.625
2.953
NL1.58D
13/4
1.750
2.953
NL1.34D
1.875
3.150
17/8
NL1.78D
115/16
1.938
3.150
NL1.516D
2
2.000
3.150
NL2.00D
21/8
2.125
3.346
NL2.18D
2.188
3.346
23/16
NL2.316D
2.250
3.543
21/4
NL2.14D
23/8
2.375
3.543
NL2.38D
2.438
3.740
27/16
NL2.716
2.500
3.740
21/2
NL2.12D
29/16
2.563
3.740
NL2.916D
2.652
4.331
25/8
NL2.58D
211/16
2.688
4.331
NL2.1116D
2.750
4.331
23/4
NL2.34D
27/8
2.875
4.331
NL2.78D
215/16
2.938
4.224
NL2.1516D
3
3.000
4.724
NL3.00D
3.125
4.724
31/8
NL3.18D
3.250
4.724
31/4
NL3.14D
3.375
5.118
33/8
NL3.38D
37/16
3.438
5.118
NL3.716D
31/2
3.500
5.118
NL3.12D
35/8
3.625
5.118
NL3.58D
3.750
5.709
33/4
NL3.34D
37/8
3.875
5.709
NL3.78D
315/16
3.938
5.709
NL3.1516D
4
4.000
5.709
NL4.00D
* For unlisted diameters please contact us
INCHES
l
L
L1
1.535
1.535
1.535
1.535
1.535
2.205
2.205
2.205
2.205
2.205
2.205
2.205
2.205
2.205
2.205
2.205
2.205
2.205
2.756
2.756
2.756
2.756
2.756
2.756
2.756
2.756
2.756
2.756
2.756
2.756
3.543
3.543
3.543
3.543
1.772
1.772
1.772
1.772
1.772
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
3.071
3.071
3.071
3.071
3.071
3.071
3.071
3.071
3.071
3.071
3.071
3.071
3.937
3.937
3.937
3.937
2.008
2.008
2.008
2.008
2.008
2.835
2.835
2.835
2.835
2.835
2.835
2.835
2.835
2.835
2.835
2.835
2.835
2.835
3.465
3.465
3.465
3.465
3.465
3.465
3.465
3.465
3.465
3.465
3.465
3.465
4.409
4.409
4.409
4.409
550
Mt
ft-lb
Axial
force lb
pw
psi
pn
psi
826
981
1033
1137
1188
2290
2481
2672
2863
2959
3054
3245
3340
4294
4533
4652
4772
4891
7956
8145
8334
8713
10683
10910
11365
11820
12274
12501
12728
13183
19857
20518
20850
21180
20239
20239
20239
20239
20239
37394
37394
37394
37394
37394
37394
37394
37394
46743
46743
46743
46743
46743
74219
74219
74219
74219
89063
89063
89063
89063
89063
89063
89063
89063
129674
129674
129674
129674
34965
29444
27972
25429
24323
29994
27687
25709
23996
23221
22496
21173
20568
24995
23680
23073
22496
21947
27215
26582
25978
24848
29183
28575
27432
26377
25400
24938
24493
23649
25888
25053
24655
24270
16147
16147
14802
14802
14802
15237
15237
15237
14285
14285
14285
13445
13445
15872
15872
15037
15037
15037
16496
16496
16496
16496
18145
18145
18145
18145
16750
16750
16750
16750
17006
17006
17006
17003
LOCKING SCREW
No.x type
8xM6
8xM6
8xM6
8xM6
8xM6
8xM8
8xM8
8xM8
8xM8
8xM8
8xM8
8xM8
8xM8
10xM8
10xM8
10xM8
10xM8
10xM8
10xM10
10xM10
10xM10
10xM10
12xM10
12xM10
12xM10
12xM10
12xM10
12xM10
12xM10
12xM10
12xM12
12xM12
12xM12
12xM12
Ms
ft-lb
13
13
13
13
13
30
30
30
30
30
30
30
30
30
30
30
30
30
61
61
61
61
61
61
61
61
61
61
61
61
107
107
107
107
NSPT-LOCKS
Inches
L1
D
NSPT-LOCKS
METRIC SIZES INCHES
Size
φD
φd
L
e
d
D
INCHES
e
L
L1
Mt
ft-lb
551
Axial
force lb
pw
psi
pn
psi
LOCKING SCREW
No.x type
Ms
ft-lb
NSPT-LOCKS
Metric
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
L1
φd
D
φD
L
e
NSPT-LOCKS
Catalog
Rated Load
dxD
e
L
L1
SIZES
QTY
CL45x75D
CL48x80D
CL50x80D
CL55x85D
CL60x90D
CL65x95D
CL70x110D
CL75x115D
CL80x120D
CL85x125D
CL90x130D
CL95x135D
CL100x145D
CL110x155D
CL120x165D
CL130x180D
CL140x190D
CL150x200D
CL160x210D
CL170x225D
CL180x235D
CL190x250D
CL200x260D
CL220x285D
CL240x305D
CL260x325D
CL280x355D
CL300x375D
CL320x405D
CL340x425D
56
56
56
56
56
56
70
70
70
70
70
70
90
90
90
104
104
104
104
134
134
134
134
134
134
134
165
165
165
165
64
64
64
64
64
64
78
78
78
78
78
78
100
100
100
116
116
116
116
146
146
146
146
146
146
146
177
177
177
177
72
72
72
72
72
72
88
88
88
88
88
88
112
112
112
130
130
130
130
162
162
162
162
162
162
162
197
197
197
197
M8x50
M8x50
M8x50
M8x50
M8x50
M8x50
M10x70
M10x70
M10x70
M10x70
M10x70
M10x70
M12x90
M12x90
M12x90
M14x90
M14x90
M14x90
M14x90
M16x120
M16x120
M16x120
M16x120
M16x120
M16x120
M16x120
M20x150
M20x150
M20x150
M20x150
9
9
9
9
11
11
11
11
12
12
13
13
12
13
15
13
15
16
17
15
16
17
17
20
22
22
20
22
22
24
552
Ft
KN
170
170
170
170
208
208
330
330
360
360
390
390
467
553
617
759
843
897
950
1223
1289
1363
1438
1582
1725
1846
2429
2540
2881
2994
Pf
MA
G
Mt
KN.M
Mpa
N.M
kg
3.90
4.15
4.30
4.70
6.30
6.90
11.80
12.60
14.70
15.60
17.90
18.90
23.30
30.40
37.0
49.0
59.0
67.0
76.0
104.0
116.0
130.0
143.7
174
207
240
340
381
461
509
179
168
162
147
165
130
179
167
171
161
165
156
181
190
195
180
186
185
183
172
172
172
172
172
172
170
168
161
175
171
40.2
40.2
40.2
40.2
40.2
40.2
81.3
81.3
81.3
81.3
81.3
81.3
145
145
145
230
230
230
230
355
355
355
355
355
355
355
690
690
690
690
1.25
1.41
1.35
1.45
1.55
1.92
3.11
3.28
3.45
3.63
3.80
3.97
6.8
7.5
8.6
11.1
11.8
12.6
13.4
19.6
20.6
23.8
24.9
29.6
31.9
34.3
52.0
55.3
67.3
71.0
NSPT-LOCKS
Metric
D
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
Catalog
Rated Load
Pf
MA
G
dxD
e
L
L1
SIZES
QTY
Ft
KN
Mt
KN.M
Mpa
N.M
kg
CL360x455D
CL380x475D
CL400x495D
CL420x575D
CL440x535D
CL460x555D
CL480x575D
CL500x595D
CL520x615D
CL540x635D
CL560x655D
CL580x675D
CL600x695D
190
190
190
190
190
190
190
190
190
190
190
190
190
202
202
202
202
202
202
202
202
202
202
202
202
202
224
224
224
224
224
224
224
224
224
224
224
224
224
M22x150
M22x150
M22x150
M22x150
M22x150
M22x150
M22x150
M22x150
M22x150
M22x150
M22x150
M22x150
M22x150
22
26
26
26
26
26
30
30
32
32
34
34
34
3589
3821
3960
4100
4260
4260
5000
5000
5330
5330
5680
5860
5860
646
726
792
861
930
930
930
930
930
930
930
930
930
169
170
168
165
165
158
176
169
174
168
172
172
166
930
930
930
930
937
980
1200
1240
1390
1440
1590
1705
1760
96.5
101
106
107
109
113
118
122
126
131
135
140
144
The items<CL200X260D are standard in stock products, the items >CL200X265D will be produced against orders
Attention When Using NSPT-LOCKS
N.M.
-30 C
200 C
3.NSPT-LOCKS can be used
and disassembled repeatly.
But after each repeated
installation and disassembling,
1.Temperature for the
working surroundings
of NSPT-LOCKS is
ʚ
ʚ
from -30 C to +200 C.
Otherwise, the NSPT
Locks can not work
well.
the shape of NSPT-LOCKS will
change slightly. Torque will be
reduced slightly as well.
KEYWAY
-10%
2.When the NSPTLOCKS are used in an
open area or in a
place
containing
moisture, it should be
protected from rust.
4.If the NSPT-LOCKS is
installed onto the shaft
with keyway, the rated
torque will be reduced
by about 10%.
553
Key Elements for Design and Calculation of D/DS NSPT-LOCKS
1.Determine max torque and max axial load
4.Calculation for the inside diameter of cannon
H . K(N m)
Mmax = 30000
π.n
Fmax =F. K
1.5- 2.5
2.0- 4.0
3.0- 5.0
dB
Ο∼b - 2xPs .K3
Ο∼b
K3--coefficient=0.6
2.Calculate synthetic load and transmitted torque
Mmax
d
5.Settlement for the surface roughness and
Mh
dimension tolerance
Clean the NSPT-LOCKS and install it into corresponding position
Mh= Mmax2+( d xFmax)2
2
of hub and shaft (Ref Drawing A). Tighten the bolts according to
the order in Drawing B bolts. The bolts should be tightened 3 to
4 times up to specified rated torque. After correct installation,
d . Fmax
2
NSPT-LOCKS should be inspected radially and axially for runouts
as per A
A
Mt Mh can be used
B
3.Calculation for the hub diameter
Da
∼
.
D Ο∼b+Ka . Ph
Ο b - Ka Ph
C
554
0.05mm, B
0.002Rmm in C.
6.Determine the surface roughness and dimension tolerance
Fitting section
shaft diameter d
bore diameter D
surface roughness
1.6
1.6
Conventional installation.
For the usage of ordinary
situation and general power
transmission
Dimension precision
h8
H8
7.Disassembling for NSPT locks
Used in pairs, Suitable for the usage of greater power
transmission
1.Loosen and remove all the tightening bolts. Then place the
unloading bolts in the corresponding unloading tap hole of the
tighening taper ring in one side, tighten and press in proper
order. Separate the tightening taper ring from the inside and
outside taper bushes.
Mounted with shaft sleeves to connect
transmission between two shafts. They
have the same function as couplings
2.After removing the tightened taper ring, place the unloading
bolts in the corresponding unloading tap hole in the middle
ring, tighten and press in proper order. Separate the tightening
taper ring with the inside and outside taper bushes from the
other side.
While installed with cams,
the position and angle of
the cams can be adjusted
accordingly
D type NSPT LOCK can be easily disassembled after the above
two steps.
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
555
NSPT-LOCKS
Suitable for Shaft Diameter
Metric:φ18̚φ400(mm)
Inch:3/4"-153/4"
FA NSPT-LOCKS is an extension series of type D locks. The
bore diameters can be from 18mm to 400mm with the largest
possible outside diameter of 495mm. This type of components
has high installation suitability and is widely used general
mechanical joints nowadays.
By simply tightening the bolts, the inner and outer rings will
move along the taper surface oppositely causing radial
pressure and fractional force, which makes the hubs and the
shaft join together.
There are two types of FA NSPT-LOCKS: FA1 and FA2. The
only difference between the two is the flange diameter of the
inner ring. For FA1 type, the flange diameter of inner ring is
6mm larger than the outer ring. For FA2 type, the flange
diameters of both rings are same.
Conversion
1 ft-Ibs.= 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
A fascinating point of FA NSPT-LOCKS is the simplicity. It is
designed to suit for self-installation; and its requirements to the
hub bore and shaft diameters are not very strict. This saves the
time and the cost of machining process.
Expression of NSPT-LOCKS Type FA
NL 50 X 80 FA
NSPT-LOCKS FA
FA1
FA2
Outside Diameter D
Shaft Diameter D
FA NSPT-LOCKS
556
NSPT-LOCKS Code
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
Inches
Ls
Ls
L
L
L2
L2
L1
FA
NSPT
Catalog
INCH SERIES INCHES
d
D
D1
INCHES
L1
L2
L
Mt
ft-lb
Ls
557
φD1
FA2
Axial
force lb
pw
psi
pn
psi
LOCKING SCREW
No.x type
Note: All the items listed in the above are for the standard parts in stock.
φD
φd
FA1
NSPT-LOCKS
Size
φD
φd
L1
Ms
ft-lb
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
Inches
Ls
Ls
L
L
L2
L2
L1
FA
NSPT
Catalog
INCH SERIES
d
D
INCHES
D1
L1
L2
L
Expression of NSPT-LOCKS Type FA
NL 2.1516 FA (1,2)
NSPT-LOCKS FA(1,2)
Shaft Diameter d 215/16"
NSPT-LOCKS Code
558
Mt
ft-lb
Ls
φD1
φD
φd
FA1
NSPT-LOCKS
Size
φD
φd
L1
FA2
Axial
force lb
pw
psi
pn
psi
LOCKING SCREW
No.x type
Ms
ft-lb
8xM1
91
9xM12
91
12xM12
91
9xM14
138
10xM14
138
11xM14
138
12xM14
138
12xM14
138
15xM14
138
15xM14
138
FA
NSPT-LOCKS
METRIC SIZES INCHES
Size
d
D
INCH SERIES INCHES
Size
d
D
INCHES
L1
L2
L
559
Mt
ft-lb
Ls
Inches
Axial
force lb
pw
psi
pn
psi
LOCKING SCREW
No.x type
Ms
ft-lb
8xM12
91
9xM12
91
12xM12
91
9xM14
138
10xM14
138
11xM14
138
12xM14
138
12xM14
138
15xM14
138
15xM14
138
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
Metric
Ls
Ls
L
L
L2
L2
L1
FA
dxD
CL18X47FA
CL19X47FA
CL20X47FA
CL22X47FA
CL24X50FA
CL25X50FA
CL28X55FA
CL30X55FA
CL32X60FA
CL35X60FA
CL38X65FA
CL40X65FA
CL42X75FA
CL45X75FA
CL48X80FA
CL50X80FA
CL55X85FA
CL60X90FA
CL63X95FA
CL65X95FA
CL70X110FA
CL75X115FA
CL80X120FA
CL85X125FA
CL90X130FA
CL95X135FA
CL100X145FA
CL110X155FA
CL120X165FA
CL130X180FA
L1
L
17
17
17
17
17
17
17
17
17
17
17
17
20
20
20
20
20
20
20
20
24
24
24
24
24
24
26
26
26
34
28
28
28
28
28
28
28
28
28
28
28
28
33
33
33
33
33
33
33
33
40
40
40
40
40
40
44
44
44
54
L2
22
22
22
22
22
22
22
22
22
22
22
22
25
25
25
25
25
25
25
25
30
30
30
30
30
30
32
32
32
40
LS
D1
SIZES
34
34
34
34
34
34
34
34
34
34
34
34
41
41
41
41
41
41
41
41
50
50
50
50
50
50
56
56
56
68
56
56
56
56
59
59
64
64
69
69
74
74
84
84
89
89
94
99
104
104
119
124
129
134
139
144
154
164
174
189
M6x20
M6x20
M6x20
M6x20
M6x20
M6x20
M6x20
M6x20
M6x20
M6x20
M6x20
M6x20
M8x25
M8x25
M8x25
M8x25
M8x25
M8x25
M8x25
M8x25
M10x30
M10x30
M10x30
M10x30
M10x30
M10x30
M12x30
M12x30
M12x30
M12x30
QTY
5
5
5
5
5
6
6
6
8
8
8
8
7
7
7
7
8
8
9
9
8
8
8
9
9
10
8
8
9
12
FA2
Rated Load
Pf
MA
G
Ft
KN
Mt
KN.M
Mpa
N.M
kg
38.0
38.0
38.0
38.0
38.0
45.6
45.6
45.6
60.6
60.6
60.6
60.6
98.0
98.0
98.0
98.0
112.0
112.0
126.0
126.0
179.0
179.0
179.0
200
200
224
268
268
298
400
0.35
0.37
0.38
0.41
0.45
0.57
0.63
0.66
0.97
1.06
1.15
1.21
2.05
2.20
2.35
2.45
3.08
3.36
3.87
4.09
6.30
6.70
7.15
8.50
9.10
10.6
13.4
14.6
17.9
26.0
270
280
295
245
285
255
235
295
270
250
235
300
295
270
260
270
245
255
280
250
250
260
250
260
260
260
270
240
250
240
14
14
14
14
14
14
14
14
14
14
14
14
35
35
35
35
35
35
35
35
70
70
70
70
70
70
125
125
125
125
0.26
0.27
0.27
0.28
0.29
0.29
0.35
0.36
0.44
0.47
0.48
0.55
0.76
0.78
0.81
0.87
0.94
1.0
1.06
1.70
1.79
1.89
1.98
2.15
2.24
3.07
3.35
3.59
5.04
5.33
Note: All the items listed in the above are for the standard parts in stock.
560
φD1
φD
φd
FA1
NSPT-LOCKS
Catalog
φD
φd
L1
NSPT-LOCKS
Metric
Conversion
1 ft-Ibs.= 0.1382 kgf-m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
FA
NSPT-LOCKS
Catalog
dxD
L1
L
CL140x190FA
CL150x200FA
CL160x210FA
CL170x225FA
CL180x235FA
CL190x250FA
CL200x260FA
CL220x285FA
CL240x305FA
CL260x325FA
CL280x355FA
CL300x375FA
CL320x405FA
CL340x425FA
CL360x455FA
CL380x475FA
CL400x495FA
34
34
34
44
44
44
44
50
50
50
60
60
74
74
86
86
86
54
54
54
64
64
64
64
75
75
75
87
87
104
104
120
120
120
L2
40
40
40
50
50
50
50
56
56
56
66
66
81
81
94
94
94
Rated Load
LS
D1
SIZES
68
68
68
78
78
78
78
91
91
91
105
105
124
124
142
142
142
199
209
219
234
244
259
269
295
315
335
365
385
415
435
465
485
505
M14x40
M14x40
M14x40
M14x40
M14x40
M14x40
M14x40
M16x40
M16x40
M16x40
M18x50
M18x50
M20x50
M20x50
M22x60
M22x60
M22x60
QTY
9
10
11
12
12
15
15
12
15
18
16
18
18
21
18
21
21
Ft
KN
384
440
470
530
530
590
590
548
685
731
879
989
1141
1282
1611
1605
1775
Mt
KN.M
27.0
33.0
38.0
45.0
47.0
49.0
52.0
60.2
82.2
95.0
123.5
148.3
182.5
218.0
290.0
305.0
355.0
Pf
MA
G
Mpa
N.M
kg
210
230
230
180
180
170
175
141
161
159
139
146
128
136
138
131
137
190
190
190
190
190
190
190
355
355
355
485
485
690
690
930
930
930
5.81
6.67
7.61
8.05
8.90
9.58
10.68
14.4
15.5
16.7
24.0
25.5
38.0
40.0
48.0
57.0
63.0
Note: All items listed in the above table will be produced made-to-order.
Conventional Installation of FA NSPT-LOCKS
FA2 NSPT-LOCKS can be
installed through bored hubs
in step-bored format. It should
be positioned in axial direction.
1
FA2 NSPT-LOCKS can be
installed through non-through
bored hub and positioned with
the hub end. It should be
positioned in axial direction.
3
When installing FA2 NSPT-LOCKS
through step-bored format, the
position of hub bore and the rings
can be adjusted in axial direction.
2
When installing FA1 NSPTLOCKS with through bored hub,
the position of hub bore and the
rings can be adjusted freely.
4
561
NSPT-LOCKS
Suitable of Shaft Diameters
Metric:φ19⨠φ220(mm)
Inch:3/4"-85/8"
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
FB NSPT-LOCKS are formed by two inner and outer rings
with taper surface and the matching tightening bolts. They
have the characteristics of structure simplicity, easy installation
and low costs.
By simply tightening the bolts, the inner and outer rings will
move along the taper surface oppositely causing radial
pressure and fractional force, which makes the hubs and the
shaft joint together.
There are two types of FB NSPT-LOCKS: FB1 and FB2. The
only difference between those two is the flange diameter of the
inner ring. For FB1 type, the flange diameter of inner ring is
6mm larger than the outer ring. For FB2 type, the flange
diameters of both rings are the same.
A fascinating point of FB NSPT-LOCKS is the simplicity and
high concentricity. It is designed to suit for self-installstion; and
its requirements to the hub bore and shaft diameters are not
very strict. The machining process is simple and can save
more time and costs.
FB NSPT-LOCKS are the heavier version than FA type. The
diameter range is from 19mm to 220mm with a largest
possible outside diameter D of 285mm. With high installation
suitability, they are widely used in general machanical joints for
large torque transmission.
Expression of NSPT-LOCKS FB
FB1
FB2
NL 50 X 80 FB1
NSPT-LOCKS FB1
Outside Diameter D
FB NSPT-LOCKS
562
Shaft Diameter d
NSPT-LOCKS Code
NSPT-LOCKS
Inches
Ls
Ls
Size
d
D
INCH SERIES INCHES
Size
d
D
INCHES
L1
L2
L3
563
Ls
Mt
ft-lb
Axial
force lb
φd
φD
φD1
FB2
FB1
FB NSPT-LOCKS
METRIC SIZES INCHES
L3
L2
L1
φd
φD
L3
L2
L1
pw
psi
pn
psi
LOCKING SCREW
No.x type
Ms
ft-lb
NSPT-LOCKS
Metric
Ls
Ls
FB2
FB1
FB
φd
φD
φD1
L3
L2
L1
φd
φD
L3
L2
L1
NSPT-LOCKS
Fundamental Dimension
Catalog
dxD
CL19x47FB
CL20x47FB
CL22x47FB
CL24x50FB
CL25x50FB
CL28x55FB
CL30x55FB
CL32x60FB
CL35x60FB
CL38x65FB
CL40x65FB
CL42x75FB
CL45x75FB
CL48x80FB
CL50x80FB
CL55x85FB
CL60x90FB
CL65x95FB
CL70x110FB
CL75x115FB
CL80x120FB
CL85x125FB
CL90x130FB
CL95x135FB
CL100x145FB
CL110x155FB
CL120x165FB
CL130x180FB
CL140x190FB
CL150x200FB
CL160x210FB
CL170x225FB
CL180x235FB
CL190x250FB
CL200x260FB
CL220x285FB
L1
L3
L2
Ls
D1
SIZES
QTY
26
26
26
26
26
26
26
26
26
26
26
30
30
30
30
30
30
30
40
40
40
40
40
40
46
46
46
46
51
51
51
51
51
51
51
64
39
39
39
39
39
39
39
39
39
39
39
47
47
47
47
47
47
47
67
67
67
67
67
67
77
77
77
77
88
88
88
88
88
88
88
106
30
30
30
30
30
30
30
30
30
30
30
35
35
35
35
35
35
35
46
46
46
46
46
46
52
52
52
52
59
59
59
59
59
59
59
72
45
45
45
45
45
45
45
45
45
45
45
55
55
55
55
55
55
55
77
77
77
77
77
77
89
89
89
89
102
102
102
102
102
102
102
122
53
53
53
56
56
61
61
66
66
71
71
81
81
86
86
91
96
101
116
121
126
131
136
141
151
161
171
186
196
206
216
231
241
256
266
291
M6x25
M6x25
M6x25
M6x25
M6x25
M6x25
M6x25
M6x25
M6x25
M6x25
M6x25
M8x30
M8x30
M8x30
M8x30
M8x30
M8x30
M8x30
M10x40
M10x40
M10x40
M10x40
M10x40
M10x40
M12x50
M12x50
M12x50
M12x50
M14x60
M14x60
M14x60
M14x60
M14x60
M14x60
M14x60
M16x60
6
6
6
6
6
6
6
9
9
9
9
6
6
6
6
9
9
9
7
7
7
8
8
10
7
7
8
10
11
12
13
14
14
15
15
12
564
Rated Loads
Ft
KN
54
54
54
54
54
54
54
82
82
82
82
101
101
101
101
152
152
152
186
186
186
213
213
267
270
270
309
388
586
639
692
746
746
815
880
948
Mt
KN.M
0.54
0.6
0.6
0.65
0.68
0.78
0.82
1.31
1.44
1.56
1.64
2.13
2.28
2.43
2.53
4.18
4.56
4.94
6.50
7.0
7.4
9.0
9.6
12.6
13.3
14.7
18.4
25.1
40.2
47.0
54.3
63.0
66.0
71.0
78.5
88.1
Pf
Mpa
MA
N.M
G
kg
260
250
230
210
200
180
170
235
215
200
190
215
200
190
180
245
225
210
175
165
155
170
160
185
160
140
150
175
220
225
225
230
215
208
210
201
17
17
17
17
17
17
17
17
17
17
17
41
41
41
41
41
41
41
83
83
83
83
83
83
145
145
145
145
230
230
230
230
230
230
230
355
0.35
0.36
0.44
0.47
0.48
0.55
0.76
0.79
0.81
0.87
0.94
1.02
1.06
1.70
1.79
1.89
1.98
2.15
2.24
3.07
3.35
3.59
5.04
5.38
5.81
6.67
7.61
8.05
8.9
9.58
10.7
11.75
13.5
15.4
17.9
20.35
NSPT-LOCKS
Mmax
Mh
2
d . Fmax
2
Installation without stopping back
locating rings
Mt Mh can be used
Da
∼
.
D Ο∼b+Ka . Ph
Ο b - Ka Ph
Installation with stopping back
locating rings
Key Elements for Designing and Calculation
of F NSPT-LOCKS
ka=1.0
H . K(N m)
Mmax = 30000
π.n
Fmax =F. K
1.5- 2.5
2.0- 4.0
3.0- 5.0
ka=0.8
565
After installing the NSPT locks correctly. The radial and
axial run should be inspected according to A 0.05mm
and B 0.002.
dimension tolerance
Ra(um)
Surface Roughness
Fittng Section
Shaft Diameter d
1.6
Bore Diameter D
1.6
Dimension Precision
h8- H9
A
H8- H9
B
dB
d
Ο∼b - 2xPs .K3
Ο∼b
7. Disassembling of NSPT-LOCKS
conceptual diagram
K3--coefficient=0.6
for disassembling
6. Installation for NSPT-LOCKS
1.Clean the NSPT locks, hubs and shafts before installation.
Install the NSPT LOCKS into corresponding suitable position for
installation.
2.Install the tightening bolts into the corresponding tap bores
and twist them according to the drawing in proper order. The
bolts should be tightened by giving more and more force step
by step in several times until up to the rated torque. Torque
spanner have to be used to twist tightening bolts in order to
ensure the rated torque.
1
7
5
4
3
8
6
2
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
conceptual diagram
for installation
566
NSPT-LOCKS
Suitable for Shaft Diameters
Inch:15/16"-1113/16"
SD NSPT-LOCKS is best suitable for the joint connected by
hubs and shafts with thin walls. They can fit with large shaft
diameters and can transmit large torques.
SD NSPT-LOCKS is formed by one inner circle, two taper
tightening rings and matching tightening bolts. They have the
characteristics of structure simplicity, easy installation and good
durability.
The installation of SD NSPT-LOCKS is as followed:
By tightening the bolts, two tightening rings will press the inner
circle with outer taper surface, making it create the radial
pressures and frictional forces to connect the hub and the shaft.
Expression of NSPT-LOCKS SD
NL 50 X 90 SD
NSPT LOCK SD
Out Diameter D
Bore Diameter d
NSPT-LOCKS Code
SD NSPT-LOCKS
567
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
SIZE SHAFT
d
dw
inches inches
INCHES
D
L
B
d1
e
Inches
Mt
Axial
pw
ft-lb force lb psi
LOCKING SCREW
No.x type
Ms
ft-lb
SD
NSPT-LOCKS
568
R
NSPT-LOCKS
SIZE SHAFT
d
dw
inches inches
INCHES
D
L
B
d1
e
Inches
Mt
Axial
pw
ft-lb force lb psi
LOCKING SCREW
No.x type
Ms
ft-lb
SD
NSPT-LOCKS
569
R
NSPT-LOCKS
SD NSPT-LOCKS
R
Catalog
dxD
CL24x50SD
CL30x60SD
CL36x72SD
CL44x80SD
CL50x90SD
CL55x100SD
CL62x110SD
CL68x115SD
CL75x138SD
CL80x145SD
CL90x155SD
CL100x170SD
CL110x185SD
CL125x215SD
CL140x230SD
CL155x265SD
CL165x290SD
CL175x300SD
CL185x330SD
CL195x350SD
CL200x350SD
CL220x370SD
CL240x405SD
CL260x430SD
CL280x460SD
CL300x485SD
DW
L
B
19-21
14
19.5
24-26
16
21.5
28-31
18
23.5
34-36
20
25.5
38-42
22
27.5
42-48
23
30.5
48-52
23
30.5
50-60
23
30.5
55-65
25
32.5
60-70
25
32.5
65-75
30
39
70-80
34
44
75-85
39
50
85-95
42
54
95-105 46
60.5
105-115 50
64.5
115-125 56
71
125-135 56
71
135-145 71
86
140-155 71
86
150-160 71
86
160-170 88 104
170-190 92 109
190-210 103 120
210-230 114 134
230-245 122 142
d1
36
44
52
61
70
75
86
86
100
100
114
124
136
160
175
192
210
220
236
246
246
270
295
321
346
364
Metric
d2
e
26
2.75
32
2.75
38
2.75
47
2.75
53
2.75
58
3.75
66
3.75
72
3.75
79
3.75
84
3.75
94
4.5
104 5.0
114 5.5
137 6.0
146 7.3
165 7.3
175 7.5
185 7.5
195 7.5
210 7.5
210 7.5
230 8
248 8.5
268 8.5
288 10
308 10
SIZES
QTY
M5x18
M5x18
M6x20
M6x20
M6x25
M6x25
M6x25
M6x25
M8x30
M8x30
M8x35
M8x35
M10x40
M10x40
M12x45
M12x50
M16x55
M16x55
M16x65
M16x65
M16x65
M16x80
M20x80
M20x80
M20x100
M20x100
6
7
5
7
8
8
10
10
7
7
10
12
9
12
10
12
8
8
10
12
12
15
12
14
16
18
Rated Loads
Ft
KN
20.6
23.7
38.0
49.0
58.8
61.7
83.1
80.9
111
115
160
182
207
262
331
392
544
552
702
861
901
1080
1400
1690
1990
2310
Mt
KN.M
0.205
0.297
0.57
0.857
1.18
1.39
2.08
2.23
3.31
3.72
5.60
6.84
8.25
11.8
16.6
21.6
32.6
35.9
49.1
64.6
69.8
89.2
126.0
169.0
219.0
277.0
Pf
Mpa
MA
N.M
G
kg
314
254
271
278
258
226
249
229
253
239
255
242
226
240
242
237
259
246
228
254
254
234
260
251
241
237
4.9
4.9
11.8
11.8
11.8
11.8
11.8
11.8
29.4
29.4
29.4
29.4
57.8
57.8
98.0
98.0
245
245
245
245
245
245
480
480
480
480
0.2
0.3
0.4
0.6
0.8
1.1
1.3
1.4
1.7
1.9
3.3
4.7
5.9
8.3
10
15
22
22
37
41
41
54
67
82
102
118
Conversion
1 ft-Ibs. = 0.1382 kgf.M = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
570
NSPT-LOCKS
Metric:φ15ċφ110(mm)
Inch:5/8"-45/16"
SK NSPT-LOCKS is the developed type of SD NSPT-LOCKS.
They are best suitable for joints between long shafts and hubs
to transmitting lager torques. With no special requirement on
shaft diameters and precision, this type of locks can be used
to replace couplings in some mechanical transmissions.
SK NSPT-LOCKS is formed by one inner circle, two taper
tightening rings with taper surface and matching tightening
bolts. They have the characteristics of structure simplicity, easy
installation, good durability and low production and
maintenance costs.
The installation of SK NSPT-LOCKS is as followed:
By tightening the bolts, two tightening rings will press the
inner circle with outer taper surface, making it create the
radial pressures and frictional forces to connect the hub and
the shaft. It is the same operating method as SD NSPTLOCKS.
Expression of NSPT-LOCK SK
NL 50 X 60 SK
NSPT LOCK SK
Out Diameter D in mm
Bore Diameter d in mm
NSPT-LOCKS Code
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
SK NSPT-LOCKS
571
NSPT-LOCKS
H
φd
φD
B
Inches
SK NSPT-LOCKS
METRIC SIZE INCHES
Size
d
INCHES
D
B
H
TOLERANCE
Shaft
inches
Conversion:1 inch=25.40mm
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
572
Mt
ft-lb
Axial
force lb
LOCKING SCREW
No.x type
Ms
ft-lb
NSPT-LOCKS
Metric
H
φd
φD
B
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
SK NSPT-LOCKS
Catalog
dxD
B
H
SIZES
QTY
CL15x45SK
CL16x45SK
CL17x45SK
CL18x50SK
CL19x50SK
CL20x50SK
CL22x55SK
CL24x55SK
CL25x55SK
CL28x60SK
CL30x60SK
CL32x65SK
CL35x75SK
CL38x75SK
CL40x75SK
CL42x78SK
CL45x85SK
CL48x90SK
CL50x90SK
CL55x95SK
CL60x100SK
CL65x105SK
CL70x115SK
CL75x120SK
CL80x125SK
CL85x130SK
CL90x135SK
CL95x140SK
CL100x150SK
CL105x155SK
CL110x160SK
50
50
50
50
50
50
60
60
60
60
60
60
75
75
75
75
85
85
85
85
85
85
100
100
100
100
100
120
120
120
120
56
56
56
56
56
56
66
66
66
66
66
66
83
83
83
83
93
93
93
93
93
93
110
110
110
110
110
132
132
132
132
M6x40
M6x40
M6x40
M6x40
M6x40
M6x40
M6x50
M6x50
M6x50
M6x50
M6x50
M6x50
M8x65
M8x65
M8x65
M8x65
M8x70
M8x70
M8x70
M8x70
M8x70
M8x70
M10x80
M10x80
M10x80
M10x80
M10x80
M10x100
M12x100
M12x100
M12x100
4
4
4
4
4
4
4
4
6
6
6
6
4
4
4
4
6
6
6
8
8
8
6
6
8
8
8
8
8
8
8
573
Rated Loads
Ft
KN
16.8
16.8
16.8
16.8
16.8
16.8
25.2
25.2
25.2
25.2
25.2
31.2
31.2
31.2
31.2
31.2
46.8
46.8
46.8
62.4
62.4
62.4
62.4
91.0
98.4
123.0
123.0
123.0
144.0
144.0
180.0
Mt
KN.M
0.126
0.134
0.142
0.151
0.159
0.168
0.277
0.302
0.315
0.327
0.352
0.378
0.499
0.546
0.592
0.624
0.982
1.053
1.123
1.17
1.71
1.87
2.02
2.12
3.44
3.69
4.92
5.22
5.53
5.84
7.20
Pf
Mpa
MA
N.M
G
kg
127
119
112
105
100
95
103
95
91
87
81
76
80
73
67
64
74
69
65
62
58
53
49
47
66
62
73
68
65
57
65
17
17
17
17
17
17
17
17
17
17
17
17
42
42
42
42
42
42
42
42
42
42
84
84
84
84
84
84
145
145
145
0.4
0.4
0.4
0.5
0.5
0.5
0.7
0.73
0.77
0.91
0.81
0.8
1.3
1.2
1.4
1.33
2.3
2.3
2.5
2.4
3.0
3.3
4.1
3.8
5.2
5.5
7.0
7.5
7.8
7.9
10.4
Key Elements for Designing and Calculation of SD & SK NSPT-LOCKS
1.Determine max torque and max axial load
5.Installation and disassembling for SD & SK type NSPT lock.
H . K(N m)
Mmax = 30000
π.n
Fmax =F. K
1.5- 2.5
2.0- 4.0
3.0- 5.0
1.Clean the NSPT locks, hubs and shafts before installation.
Install the NSPT LOCKS into corresponding suitable position for
installation.
2.Install the tightening bolts into the corresponding tap bores
and twist them according to the drawing in proper order. The
bolts should be tightened by giving more and more force step
by step in several times until up to the rated torque. Torque
spanner have to be used to twist tightening bolts in order to
ensure the rated torque.
3. Loosen and remove all the tigtening bolts in order to ensure
the NSPT LOCKS disassemble properly.
2.Calculate synthetic load and transmitted torque
Mmax
Mh
Mh= Mmax2+( d xFmax)2
2
6.Attention to the designing for hub structure.
d . Fmax
2
Mt Mh can be used
3.Calculation for the hub diameter
Da
∼
.
D Ο∼b+Ka . Ph
Ο b - Ka Ph
In order to ensure the hubs have enough strength, the interim
radius must be bigger than the outer at least 6mm. The
distance X between the face of NSPT lock and the face of hubs
must be larger than R.
4.Determine the surface roughness and dimension tolerance
Fitting section
Ra(um)
Surface roughness
7.Operation attention
1. The actual torque will be reduced by 10% due to the jointed
shafts with the keyway.
2. SD and SK type NSPT Locks should work under temperature
ʚ
ʚ
from -30 C to +200 C.
3.When NSPT-LOCKS are used in open areas, they should be
protected from rust.
4. Please do not exchange tightening bolts. Please contact
NSPT for replacement.
Dimension precision
Shaft diameter d
1.6
h8- H9
Bore diameter D
1.6
H8- H9
outer diameter
of hub D'
1.6
H7
574
NSPT-LOCKS
Inch:5/8"-23/4"
HL NSPT-LOCKS is designed for connections between small or
medium diameter shafts and hubs. It has high concentricity, low
production and operating costs and is easy for self-installation.
The straight-line-design for the shafts and hub bores makes the
machining process much less complicated.
The installation of HL NSPT-LOCKS is as followed:
Twist the round nut on the inner hub with outer taper surface.
Make the nut move axially to press the outer ring with taper bore.
The pressures and the frictional forces can then be created. The
shaft and the hub can then be connected without keys or
clearance.
HL type NSPT-LOCKS can be installed with only one round nut.
Simply twist the nut to tighten the shaft and the hub, lock the
round nut by relevant washier in order to prevent the lock from
moving axially and to ensure the torque transmitting efficiency
and effectiveness.
Please notice that HL NSPT-LOCKS can only be installed and
used when the dimension B is larger than the axial length of the
inner bore of the hub.
Expression of NSPT-LOCKS HL
NL 5 X 16 HL
NSPT-LOCKS HL
Outside Diameter D
Shaft Diameter d
NSPT-LOCKS Code
HL NSPT-LOCKS
575
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
HL
Inches
NSPT-LOCKS
METRIC SIZES INCHES
TOLERANCE INCHES
Shaft
Hub
INCHES
H
B
E
Mt
ft-lb
Axial
force lb
pw
psi
pn
psi
LOCKING SCREW
Type
Ms
ft-lb
70
70
70
118
118
118
118
163
163
163
252
252
355
355
355
503
503
644
644
718
718
814
814
962
1184
1184
1480
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
576
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
Metric
H
HL
φD
φE
φd
B
NSPT-LOCKS
Catalog
Fundamental dimensions
Locking nut
Rated load
Ps
Ph
G
dxD
H
B
E
Sizes
Ma(N.m)
Ft(Kn)
Mt(Kn.m)
Mpa
Mpa
Kg
CL14x25HL
CL15x25HL
CL16x25HL
CL17x26HL
CL18x26HL
CL18x30HL
CL19x30HL
CL20x30HL
CL22x32HL
CL24x35HL
CL25x35HL
CL28x36HL
CL28x40HL
CL30x40HL
CL32x42HL
CL35x45HL
CL36x45HL
CL38x48HL
CL38x50HL
CL40x50HL
CL40x52HL
CL42x55HL
CL45x55HL
CL45x57HL
CL48x60HL
CL50x60HL
CL50x62HL
CL55x65HL
CL55x68HL
CL56x68HL
CL60x70HL
CL60x73HL
CL63x79HL
CL65x79HL
CL70x84HL
16.5
16.5
16.5
16.5
16.5
18
18
18
18
18
18
18
19.5
19.5
21.5
21.5
21.5
21.5
21.5
24.5
24.5
24.5
25.5
25.5
25.5
25.5
25.5
27.5
27.5
27.5
28.5
28.5
30.5
30.5
31.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
7
7
8
8
8
8
8
10
10
10
10
10
10
10
10
12
12
12
12
12
14
14
14
32
32
32
32
32
38
38
38
38
45
45
48
52
52
55
58
58
62
62
65
65
68
70
70
75
75
75
80
80
80
85
85
92
92
98
M20x1.0
M20x1.0
M20x1.0
M20x1.0
M22x1.0
M25x1.5
M25x1.5
M25x1.5
M25x1.5
M30x1.5
M30x1.5
M32x1.5
M35x1.5
M35x1.5
M36x1.5
M40x1.5
M40x1.5
M42x1.5
M42x1.5
M45x1.5
M45x1.5
M48x1.5
M50x1.5
M50x1.5
M55x2.0
M55x2.0
M55x2.0
M60x2.0
M60x2.0
M60x2.0
M65x2.0
M65x2.0
M70x2.0
M70x2.0
M75x2.0
95
95
95
95
95
160
160
160
160
220
220
220
340
340
340
480
480
480
480
680
680
680
870
870
970
970
970
1100
1100
1100
1300
1300
1600
1600
2000
5.1
5.5
5.45
5.5
5.4
6.6
6.6
6.6
6.6
8.75
8.8
8.55
10.6
10.6
10.6
13.1
13.3
13.1
13.1
15.5
15.5
15.2
17.7
17.7
20.8
20.8
20.8
22
22
22
26.6
26.6
31.1
31.1
35.4
0.038
0.041
0.043
0.047
0.049
0.058
0.062
0.066
0.073
0.105
0.11
0.12
0.149
0.16
0.17
0.23
0.24
0.25
0.25
0.31
0.31
0.32
0.4
0.4
0.5
0.52
0.52
0.61
0.61
0.62
0.8
0.8
0.98
1.01
1.24
200
185
174
164
155
185
176
167
152
185
178
159
188
164
154
153
149
141
141
124
120
114
122
122
135
130
130
103
103
101
113
113
107
104
110
110
110
110
107
107
112
112
111
105
127
127
124
141
123
117
120
120
112
112
93
93
87
96
96
105
105
105
84
84
82
93
93
86
86
92
0.06
0.06
0.06
0.07
0.07
0.07
0.08
0.08
0.09
0.09
0.09
0.14
0.15
0.14
0.16
0.17
0.16
0.27
0.28
0.24
0.26
0.28
0.30
0.30
0.36
0.32
0.32
0.38
0.38
0.39
0.43
0.43
0.47
0.50
0.65
577
NSPT-LOCKS
Inch:5/8"-23/8"
HLL NSPT-LOCKS is the extended version of HL type with
anti-shock feature. It can transfer larger torques due to its
longer length. This type of lock is also designed for
connections between small or medium diameter shafts and
hubs with high concentricity, low production and operating
costs and easy self-installation. The shaft and the inner bore
hub are both plain, which makes the machining process easy
and economical.
The installation of HLL NSPT-LOCKS is as followed:
Twist the round nut on the inner hub with outer taper surface.
Make the nut move axially to press the outer ring with taper
bore. The pressures and the frictional forces can then be
formed, and the shaft and the hub can be connected without
keys or clearance.
HLL type NSPT-LOCKS can be installed with only one round
nut. Simply twist the nut to tighten the shaft and the hub, lock
the round nut by relevant washer in order to prevent the lock
from moving axially and to ensure the torque transmitting
efficiency and effectiveness.
Please notice that HLL NSPT-LOCKS can only be installed
and used when the dimension B is larger than the axial length
of the inner bore of the hub.
Expression of NSPT-LOCK HLL
NL 50 X 60 HLL
NSPT LOCK HLL
Out Diameter D
Bore Diameter d
NSPT-LOCKS code
HLL NSPT-LOCKS
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
578
NSPT-LOCKS
HLL
NSPT-LOCKS
METRIC SIZES INCHES
Size
d
Inches
D
TOLERANCE INCHES
Shaft
Hub
INCHES
H
B
E
Mt
ft-lb
Axial
force lb
pw
psi
pn
psi
LOCKING SCREW
Type
Ms
ft-lb
70
70
70
70
118
118
118
163
163
163
252
252
355
355
503
503
644
644
718
718
814
962
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
579
NSPT-LOCKS
HLL
Catalog
Metric
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
Fundamental dimensions
Locking nut
Rated load
dxD
H
E
B
Sizes
Ma(N.m)
CL14x25HLL
CL15x25HLL
CL16x25HLL
CL17x25HLL
CL18x30HLL
CL19x30HLL
CL20x30HLL
CL22x35HLL
CL24x35HLL
CL25x35HLL
CL28x40HLL
CL30x40HLL
CL32x45HLL
CL35x45HLL
CL38x50HLL
CL40x50HLL
CL42x55HLL
CL45x55HLL
CL48x60HLL
CL50x60HLL
CL55x65HLL
CL60x70HLL
30
30
30
32
32
32
32
36
36
36
42
42
44
44
45
45
46
46
46
46
46
52
32
32
32
32
38
38
38
45
45
45
52
52
58
58
65
65
70
70
75
75
80
85
20
20
20
20
20
20
20
25
25
25
30
30
30
30
30
30
30
30
30
30
30
30
M20x1.0
M20x1.0
M20x1.0
M20x1.0
M25x1.5
M25x1.5
M25x1.5
M30x1.5
M30x1.5
M30x1.5
M35x1.5
M35x1.5
M40x1.5
M40x1.5
M45x1.5
M45x1.5
M50x1.5
M50x1.5
M55x2.0
M55x2.0
M60x2.0
M65x2.0
95
95
95
95
160
160
160
220
220
220
340
340
480
480
680
680
870
870
970
970
1100
1300
580
Ft(Kn)
9
9
9
9
9
11
11
14
14
14
17
17
21
21
26
26
30
30
35
35
37
45
Ps
Ph
G
Mt(Kn.m)
Mpa
Mpa
Kg
0.064
0.07
0.073
0.08
0.091
0.105
0.112
0.163
0.178
0.185
0.25
0.27
0.35
0.39
0.51
0.52
0.63
0.68
0.84
0.88
1.03
1.36
85
80
75
70
65
75
70
70
65
60
55
50
60
55
60
55
65
60
60
60
60
65
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
50
50
50
50
50
50
55
0.11
0.11
0.11
0.13
0.13
0.13
0.15
0.15
0.17
0.17
0.17
0.26
0.26
0.26
0.30
0.33
0.38
0.45
0.51
0.66
0.72
0.80
Key Elements for Designing and Calculation of HL-HLL NSPT-LOCKS
H . K(N m)
Mmax = 30000
π.n
Fmax =F. K
dB
d
Ο∼b - 2xPs .K3
Ο∼b
K3--coefficient=0.6
dimension tolerance
1.5- 2.5
2.0- 4.0
3.0- 5.0
Fittng Section
Mmax
Mh
Ra(um)
Surface Roughness
Dimension Precision
Shaft Diameter d
1.6
h8- H9
Bore Diameter D
1.6
H8- H9
6. Installation and disassembling for NSPT lock type HL,HLL
2
Installation:
Before installation, clean up oil or dust so that torque
transmission won’t be affected. Loosen the round nut and
keep it relaxed. Meanwhile, install hub and shaft and NSPT lock
d . Fmax
2
in the right positions. For step shaft, the short distance “o”
should be deep and data for “o” should have data larger than
the distance in axial while the NSPT lock is tightened. Tiqhten
the round nut in clockwise direction to reach the specified
torque. The round nut should be eventually locked with the
washer.
Mt Mh can be used
Put the washers into the
split groove of nuts
Da
∼
.
D Ο∼b+Ka . Ph
Ο b - Ka Ph
Ka=0.8
Ka=1.0
After the correct installation mentioned above inspect the
runout for A and B . The run out for A should not excess
0.05mm and 0.02mm for B .
581
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
Conventional installation with
non-through bored hubs
Disassembling :
To disassemble, open and loosen the locked washer the
roundnut. The NSPT lock will be separated from the shaft
and hub, and then return to its original shape.
Pull out the washer
from the split groove
of nut
Conventional installation with through
bored hubs
Dimension table of split round nuts
Catalog
M20x1
M22x1
M25x1.5
M30x1.5
M32x1.5
M35x1.5
M36x1.5
M40x1.5
M42x1.5
M45x1.5
M48x1.5
M50x1.5
M55x2
M60x2
M65x2
M70x2
M75x2
D1
b1
D
m
n
32
35
38
45
48
52
55
58
62
65
68
70
75
80
85
92
98
6
7
7
7
7
8
9
9
10
10
11
11
11
11
12
12
13
26
29
32
38
41
44
47
50
52
56
58
61
67
73
79
85
90
4
5
5
5
5
5
6
6
6
6
6
6
7
7
7
8
8
2
2
2
2
2
2
2.5
2.5
2.5
2.5
2.5
2.5
3
3
3
3.5
3.5
Symmetrical installation of paired
NSPT-LOCKS on both sides for
greater power transmission
Dimension table of stop backing washers
Catalog
d
D
S
n
F
E
20
20.5
26
1
4
19
4
25
25.5
32
1.25
5
24
5
30
30.5
38
1.25
5
28
5
35
35.5
44
1.25
6
33
5
40
40.5
50
1.25
6
38.5
6
45
45.5
56
1.25
6
43
6
50
50.5
61
1.25
6
48
6
55
55.5
67
1.25
8
53
7
60
60.5
73
1.5
8
58.5
7
65
65.5
79
1.5
8
63
7
70
70.5
85
1.5
8
68
8
75
75.5
90
1.5
8
73
8
Installed with counter bored
hubs. The NSPT-LOCKS can
be completely installed into
the hub to save space.
582
NSPT-LOCKS
Inch:1/4"-51/8"
T NSPT-LOCKS has very small difference between the outside
diameter and the inner bore diameter. It is designed for
connecting shafts with small or medium diameters especially
when small space is left between the inner hub bore and the
shaft.
T NSPT-LOCKS is formed by one inner ring, one outer rings, a
locating ring and relevant tightening bolts. They have the
characteristics of structure simplicity, easy installation, good
durability, low production and maintenance costs, and
dust/water resistance.
The installation of T NSPT-LOCKS is as followed:
When the inner ring with flange and taper surface is fixed to the
outer ring taper surface, tightening the relevant bolts to move
the inner ring axially. The pressures and frictional forces are then
created between the connected shaft and hub. Use a locating
ring between the inner and the out rings to seal the connection.
Expression of NSPT-LOCK T
NL 50 X 60 T
NSPT LOCK T
Out Diameter D
Bore Diameter d
NSPT-LOCKS Code
T NSPT-LOCKS
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
583
NSPT-LOCKS
T
NSPT-LOCKS
METRIC SIZES INCHES
Size
Inches
d
D
INCHES
L1
L2
L
LS
E
6
* For unlisted diameters please contact NSPT
584
Mt
ft-lb
Axial
force lb
PW
psi
PN
psi
LOCKING SCREW
No.x Type
Ms
ft-lb
NSPT-LOCKS
T
Metric
NSPT-LOCKS
Catalog
dxD
CL6x14T
CL7x15T
CL8x15T
CL9X16T
CL10x16T
CL11x18T
CL12x18T
CL13x23T
CL14x23T
CL15x24T
CL16x24T
CL17x26T
CL18x26T
CL19x27T
CL20x28T
CL22x32T
CL24x34T
CL25x34T
CL28x39T
CL30x41T
CL32x43T
CL35x47T
CL38x50T
CL40x53T
CL42x55T
CL45x59T
CL48x62T
CL50x65T
CL55x71T
CL60x77T
CL65x84T
CL70x90T
CL75x95T
CL80x100T
CL85x106T
CL90x112T
CL95x120T
CL100x125T
CL110x140T
CL120x155T
CL130x165T
E
F
L1
L2
L
Ls
SizesxN
QTY
25
27
27
28
28
32
32
38
38
45
45
47
47
49
50
54
56
56
61
62
65
69
72
75
78
86
87
92
98
104
111
119
126
131
137
144
149
154
180
198
208
23
24
24
25
25
28
28
33
33
40
40
42
42
43
44
48
50
50
55
57
59
62
66
69
71
80
81
84
92
98
105
113
119
125
131
137
142
147
172
187
197
10
12
12
14
14
14
14
14
14
16
16
18
18
18
18
25
25
25
25
25
25
32
32
32
32
45
45
45
55
55
55
65
65
65
65
65
65
65
90
90
90
18.5
22
22
23
23
23
23
23
23
29
29
31
31
31
31
38
38
38
38
38
38
45
45
45
45
62
62
62
72
72
72
86
86
86
86
86
86
86
114
114
144
21
25
25
26
26
26
26
26
26
36
36
38
38
38
38
45
45
45
45
45
45
52
52
52
52
70
70
70
80
80
80
96
96
96
96
96
96
96
128
128
128
24
29
29
30
30
30
30
30
30
42
42
44
44
44
44
51
51
51
51
51
51
58
58
58
58
78
78
78
88
88
88
106
106
106
106
106
106
106
140
140
140
M3x10
M4x10
M4x10
M4x10
M4x10
M4x10
M4x10
M4x10
M4x10
M6x18
m6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M6x18
M8x22
M8x22
M8x22
M8x22
M8x22
M8x22
M10x25
M10x25
M10x25
M10x25
M10x25
M10x25
M10x25
M12x35
M12x35
M12x35
3
3
3
4
4
4
4
4
4
3
3
4
4
4
4
4
4
4
6
6
6
8
8
8
8
8
8
8
9
9
9
9
9
12
12
12
14
18
12
12
16
585
Rated Load
Pf
Ma
G
Ft
KN
Mt
KN.M
Mpa
N.m
Kg
4.2
7.4
7.4
9.4
9.8
9.8
9.8
9.8
9.8
17
17
22
22
22
22
22
22
22
33
33
33
45
45
45
45
84
84
84
94
94
94
150
150
200
200
200
230
300
290
290
384
0.012
0.025
0.029
0.044
0.049
0.053
0.058
0.063
0.068
0.127
0.136
0.18
0.20
0.21
0.22
0.25
0.27
0.25
0.465
0.51
0.54
0.79
0.86
0.90
0.95
1.89
2.01
2.10
2.60
2.84
3.07
5.25
5.60
8.02
8.50
9.00
11.0
15.0
16.0
17.5
25.0
185
235
205
205
185
170
160
140
130
185
175
190
180
170
160
115
105
100
135
127
120
105
100
95
90
110
105
100
85
75
70
90
80
100
95
90
100
120
80
70
90
2.2
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
41
41
41
41
41
41
83
83
83
83
83
83
83
145
145
145
0.15
0.15
0.16
0.16
0.17
0.17
0.18
0.19
0.2
0.21
0.23
0.25
0.27
0.29
0.30
0.38
0.41
0.45
0.47
0.48
0.52
0.63
0.67
0.73
0.78
1.23
1.24
1.40
1.70
1.90
2.21
3.05
3.32
3.50
3.81
4.20
4.75
5.46
6.05
7.18
8.03
Key Elements for Designing and Calculation of T NSPT-LOCKS
1. Determine max torque needed and max axial load
. K(N m)
Mmax = 30000H
π.n
Fmax =F. K
Ka=0.8
B>2L
Ph--surface pressures on hub Mpa
Ka--It should be 0.6 for single CAPT lock, it will be 0.8 when two
1.5- 2.5
2.0- 4.0
3.0- 5.0
4. Calculation for the inside diameter of hollow shaft
Mmax
dB
Mh
2
dimension tolerance
Fitting Section
Mt Mh can be used
Mt<Mh need bigger type of NSPT lock or to be installed by two
Da
Ο∼b - 2xPs .K3
Ο∼b
dB--inside diameter of hollow shaft mm
d--outside diameter of hollow shaft mm
d . Fmax
2
d
Ra(um)
Surface Roughness
Dimension Precision
Shaft Diameter d
1.6
h8
Bore Diameter D
1.6
H8
6. Installation and disassembling for NSPT-LOCKS Type T.
∼
.
D Ο∼b+Ka . Ph
Ο b - Ka Ph
Ka=0.8
B<2L
586
When installing without
locating rings, the inner
r i n g moves in axial
direction while tightening.
When installing with
locating rings, the outer
r i n g moves in axial
direction while tightening.
Tighten the bolts one by one until all of them reach the
specified torques. After the installation, inspect the runouts
as shown above. The run out A Should be less than 0.05mm
and B should be less than 0.002Rmm.
Installed with counter bored
hubs. The NSPT-LOCKS
can be completely installed
into the hub.
To disassemble, take off all tightening bolts. Insert the
unloading bolts into the unloading tap holes and tighten them.
NSPT lock can then be loosened and separated from the hub
and shaft.
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
Symmetrical installation of
paired NSPT-LOCKS on both
sides for greater power
When using in pairs and
mounted with hubs, it can
replace couplings in
some cases.
While installed with cams, the
position and angle of the
cams can be adjusted at will.
587
NSPT-LOCKS
Inch:3/16"-3"
ML/ML-B NSPT-LOCKS has the characteristics of structure
simplicity, easy self-installation, high concentricity, and good
durability. It can be quickly assembled without any additional
equipment and has wide range of selection for various sizes.
The smallest width can be only 10mm.
The installation of ML/ML-B NSPT-LOCKS is as followed:
Tighten the screw nuts to move the outer taper ring axially.
External force will be formed on the connecting surface
between the shaft and the hub due to the frictional force on
the taper surfaces between both inner and outer rings. The
connection is strong and safe in shaking situation as well
because of the self-locking feature and the strong frictional
force between the parts.
Conversion
1 ft-Ibs. = 0.1382 kgf.m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
Simply reverse the installation procedures for
disassembling the ML/ML-B NSPT-LOCKS.
Expression of NSPT-LOCKS ML
NL 17 X 36 ML
NSPT LOCK ML
Out Diameter D
ML NSPT-LOCKS
Bore Diameter d
NSPT-LOCKS Code
588
NSPT-LOCKS
Inches
NSPT
Catalog
L2
φd
φd
B
TYPE2
TYPE1
ML-B
L1
W
L2
φD
B
φD
L1
W
NSPT-LOCKS
Dimension(inches)
d
D
Type
L1
L2
W
589
B
Performance
Max Transmissable
Torque
Thrust
In-Lbs
Lbs
Lnstallatlon
Torque
on nut
In-Lbs
wt
oz.
NSPT-LOCKS
C
w
Metric
ML
NSPT-LOCKS
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
R
Funmdamental Dimensions
Rated Load
Catalog
dxD
CL5x16ML
CL6x16ML
CL7x21ML
CL8x21ML
CL9x21ML
CL10x24ML
CL11x24ML
CL12x24ML
CL14x31ML
CL15x31ML
CL16x31ML
CL17x36ML
CL18x36ML
CL19x36ML
CL20x41ML
CL22x41ML
CL24x41ML
CL25x46ML
CL28x46ML
CL30X50ML
CL32x50ML
L
L1
L2
W
C
15
10
5
17
19.6
21
14
7
22
25.4
22
14
8
24
27.7
27
17
10
32
37
33
21
12
36
41.6
35
23
12
41
47.3
37
25
12
46
53.1
41
28
13
50
57.7
Mt
N.M
7
8
15
18
20
26
28
31
83
90
96
145
155
163
245
274
294
365
408
446
475
Ft
KN
2.65
6.57
8.43
16.1
22.8
24.9
30.1
30.1
Pf
MA
G
N/mm2
N.M
kg
181
161
179
163
150
180
172
164
186
179
173
181
175
171
156
149
144
138
131
111
104
9.1
19.9
25.5
80.0
136
230
300
330
0.02
0.02
0.049
0.047
0.045
0.061
0.058
0.055
0.13
0.13
0.12
0.2
0.19
0.19
0.27
0.27
0.24
0.33
0.30
0.41
0.37
Conventional installation of ML NSPT-LOCKS
Conventional installation
Used in pairs and mounted with
hubs. They can be used instead
of couplings
590
Used in pairs, thus greater power
can be transmitted, for the usage
of heavy loud transmission
NSPT-LOCKS
Metric
L1
φd
φD
φd
L2
B
φD
W
TYPE 1
L1
W
L2
B
TYPE 2
ML-B
Catalog
CL5x16ML-B
CL6x16ML-B
CL8x19ML-B
CL9x19ML-B
CL10X22.5ML-B
CL11x22.5ML-8
CL12x22.5ML-B
CL14x25.5ML-B
CL15x25.5ML-B
CL16x25.5ML-B
CL15x38ML-B
CL18x38ML-B
CL20x38ML-B
CL22x45ML-B
CL24x25ML-B
CL25x45ML-B
CL28x51ML-B
CL30x51ML-B
CL32x51ML-B
CL34x60.5ML-B
CL35x60.5ML-B
CL36x60.5ML-B
CL38x60.5ML-B
CL40x67ML-B
CL42x67ML-B
CL45x73ML-B
CL48x73ML-B
CL50x73ML-B
CL55x80ML-B
CL60x86ML-B
CL65x92ML-B
CL70x92ML-B
CL75x100ML-B
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
NSPT-LOCKS
d
5
6
8
9
10
11
12
14
15
16
15
18
20
22
24
25
28
30
32
34
35
36
38
40
42
45
48
50
55
60
65
70
75
D
TYPE
Rated Load
L1
L2
W
B
16
1
19
9.5
13
3
19
1
22
11
16
3
22.5
1
25.5
12.5
19
5
25.5
1
28.5
16
22
5
38
2
38
19
32
8
45
2
47.5
21.5
38
11
51
2
57
25.5
46
13
60.5
2
70
38
50
14
67
2
79.5
43
60
14.5
73
2
90.5
51
65
16
80
86
2
2
95
98.5
54
57
70
75
16
17.5
92
2
103
60.5
80
17.5
100
2
108
63.5
90
19
Conversion :1 inch = 25.40mm
591
Mt
KN.M
0.01
0.013
0.015
0.018
0.023
0.025
0.028
0.046
0.049
0.053
0.12
0.15
0.23
0.26
0.29
0.30
0.41
0.44
0.47
0.49
0.51
0.52
0.55
0.63
0.65
0.71
0.75
0.82
1.24
1.41
1.51
1.62
1.63
Ft
KN
3.18
3.58
4.05
4.18
4.25
4.33
4.39
4.49
4.51
4.53
12.70
14.60
19.8
22.5
25.30
27.25
32.25
35.0
37.7
43.0
44.0
44.8
47.7
51.7
54.5
58.6
64.4
67.0
67.5
69.4
70.9
71.9
73.3
Pf
N/mm2
MA
N.M
kg
36
14.1
0.014
26
17.0
0.028
19
23.1
0.042
13
38.0
0.056
76
136
0.23
65
230
0.31
54
330
0.45
45
390
0.77
38
460
1.05
29
540
1.36
24
20
810
910
2.13
2.27
17
980
2.68
16
990
2.72
Key Elements for Designing and Calculation of ML NSPT-LOCKS
H . K(N m)
Mmax = 30000
π.n
Fmax =F. K
dB
d
Ο∼b - 2xPs .K3
Ο∼b
2.0- 4.0
3.0- 5.0
K3--coefficient=0.6
Mmax
φD
1.5- 2.5
Ps
Ps
φdB
φd
φDN
Ph
Ph
Mh
dimension tolerance
2
Fittng Section
d . Fmax
2
Ra(um)
Surface Roughness
Dimension Precision
Shaft Diameter d
1.6
h8- H9
Bore Diameter D
1.6
H8- H9
6. Installation and disassembling for NSPT lock type ML.
Mt Mh can be used
A
B
Da
rmm
∼
.
D Ο∼b+Ka . Ph
Ο b - Ka Ph
B
L1
,
P
After installing the NSPT locks correctly, the radial and axial
run out should be inspected according to A
Ka=1.0
B
B L1
0.05mm and
0.002R.
Conversion
1 ft-Ibs. = 0.1382 kgf . m = 1.3550 N.m
1 Psi = 0.0007 kgf/mm2 = 0.0069 Mpa
592

NSPT-LOCKS

Transcription

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