Slewing bearing - RTR Slewing ring

Transcription

RTR
Engineering Co., LTD.
GENERAL CATALOG
Technical Descriptions of the Products
SLEWING RING
SLEW DRIVE
TURNTABLE
GEAR
RTR Engineering Company Limited is established in 26th, June 1998.We supplied excellent product
and service to every user. Moreover, we have gained ISO9001 certificate for our control of quality. We
are specialized in slewing bearings, slew drive, gears and other medium and large size bearing. Product
range is from 50mm to 5000mm. We possess very professional in controlling the quality of our product.
Since we have very strong ability both in design and technical analysis, we can provide our customers
with exact, suitable, economic products also the technical services. We've built up good relationship with
our customers all over the world, especially in the Europe and USA market. Product widely used in
metallurgy, mining, oil, chemistry, light industry, aviation, harbor/quay, vessels, military industry,
instruments and meters etc.
Our goal is to supply the customer high quality, suitable products and professional, prompt service to
ensure your machines keep running!
RTR bearing with Reasonable price, Timely delivery, Responsible quality.
RTR- KEEP RUNNING !
Slewing bearing
Tuntable
Light Series
Gear box
Slew Drive
Gear
INDEX
SLEWING RING
Slewing Rings Introduction
4
Technical Data
Single-row ball slewing ring
12
Single-row cross roller slewing ring
16
Double-row ball slewing ring
18
Three-row roller slewing ring
19
Forged Rings for Slewing Rings
22
Fastening Bolts & Pinion
23
Slewing ring repair and refurbishment
24
SLEW DRIVE
Slew Drive Introduction
25
Slew Drive Data
26
Slew Drive Spec
30
TURNTABLE
Turntable data
48
GEAR
Research center
50
Working areas
51
Inspection
51
Applications
52
Gear Data
53
Slewing bearing
1. Concept of slewing bearing
1) Definition
Slewing bearing is a large bearing with special configuration, which can endure biggish multiply load, such as axial & radial load,
overturning moment, etc.
2) Structure
Slewing bearing is composed of outer ring (teeth or non-teeth), rolling element (steel ball, cylindrical roller, tapered roller), cage, inner
ring (teeth or non-teeth) and seals (the one with sealed structure).
3) Classification
Slewing bearing can be classified by different structure: four point contact ball slewing bearing; double – row different diameter ball
slewing bearing; cross roller slewing bearing; three – row roller slewing bearing, etc.Slewing bearing also can be classified by teeth:
slewing bearing with non-teeth, slewing bearing with external teeth, slewing bearing with internal teeth.
2. Function and characteristic of slewing bearing
2.1 Function
Slewing bearing itself is featured in compact structure, convenient lead to slew, easy for installation & maintenance, which is widely
used as slewing set in the fields of heavy machine, slewing platform in the steelworks, excavator grab, material taking & stacking set,
material traveler, harbor machine, missile launching cage, CT set, etc.
2.2 Characteristic
1) Four point contact ball slewing bearing can take more dynamic load, and suitable for the application with speed.
2) Cross roller slewing bearing can take more static load, it’s pre-interference is better for more support rigidity and slewing precision.
3) Three – row roller slewing bearing is a high load capacity slewing set, different direct raceway and rollers can take load from different
side. So when have the same load, it can be smaller size that can make the application compact.
3. Choosing type
How to choose the slewing bearing type to suit the application best?
Most of the companies chooses slewing bearing depends on the load chart.
Most of slewing bearings work under eccentric load, take axial load (Fa), radial load (Fr) and overturning moment (M). So before
choosing a suitable bearing need to have calculation for the bearing using condition, need to calculate the load for dynamic and static
condition. Calculating the service life according to the safety factor of different application. Then may choose the suitable bearing.
2797/2680K slewing bearing load curve
Curve 1 means when material is 42CrMo, it is the allowable static load curve for ball bearing with allowable contact stress 3850Mpa, or
roller bearing with allowable contact stress 2700 Mpa.
Curve 2 means rated dynamic load curve when bearing has whole turning with reliability 90%, life time 0.03×106, under condition of
not high radial load, low speed of turning and not high working precision.
Curve 3 means when material is 50Mn, it is the allowable static load curve for the ball bearing with allowable contact stress 3400Mpa,
or roller bearing with allowable contact stress 2100Mpa.
The maximum load curve of the bolt is when its joint length is five times long as the bolt diameter, and the preliminary stress is 10% of the
yield strength of the material.
4. Slewing bearing’s materials & technique required
4.1 Main materials
1) Rings
1.1) Materials:
Steel 45＃, 50Mn (carbon structural steel), 42CrMo (alloy structural steel). 50Mn and 42CrMo are usually used. Their chemical
component and mechanics capability are showed in the form below.
Form 1
Chemic component %
Mechanics Capability
σb
σs
δ5
ψ
AKU
Tensile strength
Yield strength
Elongation
Reduction of area
Impact value
Material
C
Si
Mn
Cr
Mo
Mpa
%
Standard
J
42CrMo
0.38-0.40
0.17-0.37
0.50-0.80
0.90-1.20
0.10-0.25
1080
930
12
45
63
GB/T3077
50Mn
0.48-0.56
0.17-0.37
0.70-1.00
-
-
645
390
13
40
31
GB/T699
1.2) Hardness:
Normalizing hardness of the rings is 187HB-241HB, quench & temper hardness is 229HB-269HB, hardness of the raceway after
quenching is 55HRC-62HRC.
1.3）hardening of slewing bearings
Single row four
point contact
bearing raceway
Double row ball
bearing compress
raceway
All teeth quenching
Double row
ball bearing
nose raceway
Single row cross
roller bearing
raceway
Three row
roller nose
raceway
tooth face and dedendum quenching
Double row
ball bearing
raceway
tooth face quenching
1.4) Depth of harden
After raceway surface quenching, the valid harden depth (DS) should be meet with the following form2.
Form 2 Valid raceway harden depth (DS)
Unit: mm
Exceed
-
30
40
50
To
30
40
50
-
≥3.0
≥3.5
≥4.0
≥5.0
Dw (Roller/ball Diameter）
DS
DS is the harden depth of raceway surface when hardness≥48HRC.
1.5) Quenching soft belt of the raceway
I. Width of soft belt: to the rings without filling hole, when rolling element diameter Dw≤25mm, width of soft belt should be less than
2Dw; when Dw＞25mm,width of soft belt should be less than 50mm. As to the rings with filling hole, width of soft belt should be less
than filling hole diameter plus 35mm.
II. Marking of soft belt: soft belt on the ring with filling hole should be the place of taper pin(filling hole) and don't need to be marked,
on other rings should be set to non-installation part with the visible permanent mark “S”. As to the soft belt of double half rings, except
setting mark, the two soft belt should be set between 180°or in one point.
2) Rolling element: it is made of chrome steel GCr15 or GCr15SiMn.
I. Steel ball should accord with the standard of GB/T308-2002, roller should accord with the standard of GB/4661-2002.
II. Rolling element tolerance should be chosen based on slewing bearing tolerance grade, which should accord with form3
Form 3 Tolerance grade of rolling element to choose
Steel Ball
Cylindrical Roller
Bearing’s Tolerance Grade
Exceed
-
30
50
To
30
50
-
a
Dw
0、6
G40
G60
G100
Ⅲ
5
G20
G40
G60
Ⅱ
a VLWL can be not required, surface round runout SDW should be in the range of twice standard.
3) Seal:
it is usually made of NBR, iron, felt, or other thing which meet the capability.
steel number comparison between China & other countries, follow form 4
Form 4 Slewing bearing material number comparison between China & Other countries.
Type
China GB（YB）
USSR
гост
USA AISI SAE
U.K
BS
Japan
JIS
France
S45C
NF
45
45
1045
50Mn
50г
C1050， 1052
En43C
XC48
4140
En19A
42CD4
Germany
C45
DIN
C45，CK45
carbon structural steel
alloy structural steel
42CrMo
42CrMo4
Material selection of slewing bearings: mainly based on working condition, size, capability required
Material selection of rolling element: GCr15SiMn is selected for larger size rolling element, GCr15 is selected for smaller size rolling
element.
Material selection of rings: steel 45# is for those which are low slewing speed, low precision & capability required. 50mn is for those
which are higher precision & capability required, 42CrMo is for those which are higher precision & capability, higher intensity or larger
size required.
5. Clearance of slewing bearings
The clearance of slewing bearings is mainly used to equalize the manufacture & setting errors, which is caused by slewing bearing’s
support part and application’s assembling part, in order to ensure the bearings right operation. It is listed in Form 5 ----- 8 with the data of
clearance, which is based on slewing bearing’s structure, tolerance grade, and rolling element’s diameter.
We also can supply slewing bearing with preload, 0 even minus clearance.
Form 5 Axial clearance of four point contact ball slewing bearing
μm
Dpw
Tolerance Grade
G
E
mm
D
Axial Clearance
Exceed
to
Min
Max
Min
Max
Min
Max
280
450
70
170
50
130
30
90
450
710
100
220
70
170
40
120
710
1120
120
280
100
220
50
150
1120
1800
150
350
100
260
60
180
1800
2800
200
440
150
350
80
240
2800
4500
260
540
200
440
100
300
Form 6 Axial clearance of double row ball slewing bearing
Dpw
Tolerance Grade
G
E
mm
D
Axial Clearance
Exceed
to
Min
Max
Min
Max
Min
Max
280
450
50
130
30
90
25
70
450
710
70
170
40
120
30
90
710
1120
100
220
50
150
40
120
1120
1800
100
260
60
180
40
140
1800
2800
150
350
80
240
60
180
2800
4500
200
440
100
300
80
240
Form 7 Axial clearance of cross roller slewing bearing
Dpw
Tolerance Grade
G
E
mm
D
Axial Clearance
Exceed
to
Min
Max
Min
Max
Min
Max
280
450
50
130
30
90
25
70
450
710
70
170
40
120
30
90
710
1120
100
220
50
150
40
120
1120
1800
100
260
60
180
40
140
1800
2800
150
350
80
240
60
180
2800
4500
200
440
100
300
80
240
Form 8 Axial clearance of three-row roller slewing bearing
Tolerance Grade
Dpw
G
mm
E
D
Axial Clearance
Radial Clearance
Axial Clearance
Radial Clearance
Axial Clearance
Radial Clearance
Exceed
to
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
280
450
30
90
50
130
25
70
30
90
10
50
25
70
450
710
40
120
70
170
30
90
40
120
15
65
30
90
710
1120
50
150
100
220
40
120
50
150
20
80
40
120
1120
1800
60
180
100
260
40
140
60
180
20
100
40
140
1800
2800
80
240
150
350
60
180
80
240
30
130
60
180
2800
4500
100
300
200
440
80
240
100
300
40
160
80
240
6. Lubrication & seal of slewing bearings
It is necessary measure to lubricate & seal bearings effectively and sufficiently for ensuring bearings’ safety operation and avoiding early
abnormal damage.
6.1 Lubrication of bearings
Slewing bearings are usually operating in high-load & low-speed working condition, it is recommended to fill lubricate grease to do a
good job. There are kinds of lubricate grease widely used, such as calcic lubricate grease, lithium lubricate grease, aluminum lubricate
grease, high temperature lubricate grease, etc. Customer could choose the most suitable lubricate grease based on actual condition. It is
listed with recommended lubricate grease types in form 7.
6.2 Seal of slewing bearings
The seal of slewing bearings is used for avoid leakage of filled lubricate grease on one side, and the other side is to avoid in-leakage of
outer dust, impurity and water which can cause abnormal operation of slewing bearing. As slewing bearing is operating in the condition
of high-load & low-speed, there are two seal structures usually used, rubber and labyrinth. Rubber is widely used because of simple
structure, little space occupied, good seal capability. But it will aging easily at high temperature and lose seal capability. So it is
recommended to use labyrinth when in the high temperature condition.
Support structure & seal form
Operating condition
Lubrication
Lubrication grease
Part
Name
Type
Holistic&partial cage or plastic
Low temperature,normal temperature,wateriness
Raceway
Calcium base grease
ZG-3, ZG-4, ZG-5
partition rubber seal
40℃～140℃
Gear
Graphite& Calcium base grease
ZG-S
Raceway
Lithium base grease
ZL-1, ZL-2
MoS2 compounded Calcium base grease
NO.3
Gear
No.4 high temperature Calcium base grease
ZN6-4
Raceway
MoS2 compounded Calcium base grease
NO.2
Gear
No.4 high temperature Calcium base grease
ZN6-4
Normal temperature,corrosion of
Raceway
No.2 aluminum-base grease
ZU-2
sea water proof
Gear
No.2 aluminum-base grease
ZU-2
Muti-genus partition
High
40℃～140℃
temperatur
e,waterines
s
Labyrinth seal
80℃～180℃
7. Operating temperatures
Standard RTR Slewing Ring can be used in ambient temperatures from -45℃ to up +70℃, please contact us in the case of higher or lower
operating temperatures.
8. Service life
The service life of the slewing bearing depends on the operating conditions. The following factors are keys:
·Torque
·Output speed
·Duty factor
·Ambient temperature
·Lubrication etc.
9. Inspection to rings
Inner & outer diameter size, height, magnetism remained, thickness of the raceway for ball, central diameter of the mounting holes, space
between holes. For those with outer teeth should also inspect teeth height, constant cord thickness, etc.
10. Package & storage of slewing bearings
10.1 Package of slewing bearings
Every slewing bearing before delivering to customers should be packed well,of which inside,outside surface and raceway are spreaded
with antirust&lubricate grease.Inner package is made of plastic film,and then compositive kraft,outer package is enlaced with flax pieces.
10.2 Storage of slewing bearing
RTR slewing bearings are well treated with antirust and oil seal before delivery, which can ensure non-rust in 12 months in the normal
storage condition. When slewing bearings are in antirust period, they can be stored when their original package is in good condition. As
to the storage is in excess of antirust period, slewing bearings should be treated with cleanout and oil seal again.
Slewing bearings should be placed horizontally in a dry breezy flat field, which are away from chemical and other erosive things. If
slewing bearings are piled up for storage, it’s necessary to use at least three stow-wood in equal height, which are equally placed between
every slewing bearing, and their location between up & low level should be consistent。
11. Installation & Maintenance of slewing bearings
11.1 Installation of slewing bearings
Before installation of every set of RTR slewing bearings, it’s necessary to check the host installation plane. Make sure that the support
part has enough rigidity, and it should be mechanically processed in order to remove the sundries and burrs. Technology required to joint
surface of support part should accord with Form 10.
Form 10 Technology required to joint surface of support part
Central circle
Complanate degree
Gradient variable of unit length between
Gradient variable of unit length between
Gradient of radial
Side face
diameter of the hole
a
circles(L=1 hole distance)on the same
circles(L=1 hole distance)on the reverse
width
roughness
direction (s-t)mm
direction (s+t)mm
D1 or D2
mm
b
δ
Ra
Bearing precision grade
Exceed
To
G
E
D
120 80 50
250
400
400
630
150
100
G E
D
G E
D
G
60
E
40
D
25
G
E
D
2.5 1.25 0.8
60
80
50
30
2.5
100
60
40
2.5
12.5
0.8
120
80
50
3.2
2.5
1.25
150
100
60
3.2
2.5
1.25
12.5
0.8
1600
2500
300
200
120
2500
4000
400
250
150
200
120
80
3.2
2.5
1.25
4000
6300
500
300
200
250
150
100
3.2
2.5
1.25
0.00008L
100
0.00013L
80
150
0.0002L
120
250
0.00008L
200
0.00013L
100
1600
0.0002L
630
1000
There’s a quenching soft belt marks “S” on the rings’ surface of every set of RTR slewing bearings offered to customers. Soft belt should
be located in non-loading area or non-regular loading area (Where filler plugs locate) during installation. Installation should be begun
with slewing bearings’ radial location, screw down the mounting bolt and check the slewing condition. In order to ensure the slewing
steadiness of bearings, gear mesh checking is needed before screwing down the bolt completely. It should has enough preload when
screwing down the bolt, which should be 70% of yield strength of bolt material. Mounting bolt should be used with Q & T flat gasket not
spring gasket.
The fastening bolt must reach the required preload when assemble the slewing bearing. Preload of different diameter bolt should accord
with Form 11.
Form 11
Bolt rigidity grade
ISO0898
Yielding limit N/mm2
8.8
M≤16
640
M>16
640
10.9
12.9
940
1100
Forced stress
Section
Pre-screwing
Academic
Torsional
Pre-screwing
Academic
Torsional
Pre-screwing
Academic
Torsional
Bolt
area of
area of
tightness of bolt
tightness
moment
tightness of bolt
tightness
moment
tightness of bolt
tightness
moment Nm
Dia
thread
thread
installation
moment
Nm
installation
moment
Nm
installation
moment
mm
2
mm
FMN
MANm
M’=0.9MA
FMN
MANm
M’=0.9MA
FMN
MANm
M’=0.9MA
M5
14.2
12.7
6400
6.1
5.5
9300
8.9
8.0
10900
10.4
9.3
M6
20.1
17.4
9000
10.4
9.3
13200
15.5
13.9
15400
18
16.2
M8
36.6
32.8
16500
258
22.5
24200
37
33
28500
43
38
M10
58
52.3
26000
51
45
38500
75
67
45000
87
78
M12
84.3
76.2
38500
87
78
56000
120
117
66000
150
135
M14
115
105
53000
140
126
77000
205
184
90000
240
216
M16
157
144
72000
215
193
106000
310
279
124000
370
333
M18
193
175
91000
300
270
129000
430
387
151000
510
459
M20
245
225
117000
430
387
166000
620
558
194000
720
648
M22
303
282
116000
580
522
208000
830
747
243000
970
873
M24
353
324
168000
740
666
239000
1060
954
280000
1240
1116
M27
459
427
221000
1100
990
315000
1550
1395
370000
1850
1665
M30
561
519
270000
1500
1350
385000
2100
1890
450000
2500
2250
M33
694
647
235000
480000
560000
M36
817
759
395000
560000
660000
M39
976
913
475000
670000
790000
M42
1120
1045
542000
M45
1300
1224
635000
M48
1470
1377
714000
1018000
M52
1760
1652
857000
1221000
1429000
M56
2030
1905
989000
1408000
1648000
M60
2360
2227
1156000
1647000
1927000
2
Thread hydraulic tension
set needed to use
772000
904000
905000
1059000
Thread hydraulic tension
Thread hydraulic tension set
1191000
set needed to use
needed to use
12. Maintenance of slewing bearings
RTR slewing bearings should be checked with mounting bolt preload moment to see whether it’s qualified as required after 100 working
hours. Since the first check, it should be repeated every 500 working hours.
After installation, some lubrication grease should be filled into bearings, when doing this, remember to slew the bearings in order to
ensure grease equal arrangement. It’s normal for slewing bearings to lose some lubrication grease after working for some time, so grease
refilling is necessary for working slewing bearings once every 50~100 working hours. This period should be reduced in the working
condition of high temperature and dust. This refilling is also needed when machine stops turning for some time.
Slewing Bearing Application Data
Company Name:
Application
Inquired Quantity:
Load
Rotating speed (rpm)
Percent of working time (%)
Condition
Axial load (kN)
Radial load (Kn)
Tilting moment (kNm)
Max.
Mean
1
2
Load
3
4
5
Usage
Vibration&Impact Level
□ Slight
□ Medium
□Severe
Service Life
Hours (Min.):
Hours (Mean):
Others
Installation Method
□ Seated
□ Suspended
□ Vertically
□ Others:
Usage Mode
□ Continuous
□Interval
□Swing
□Others:
Running Part
□ Outer ring
□ Inner ring
Lubrication Method
□ Grease
□ Oil
□ Others:
Environmental Condition
Humidity (%)
Temperature (℃ )
Contamination :(Y/N)
Bearing Working Temperature(℃ )
Normal:
Min:
Max.:
Bearing Structure
□ Four-point contact ball bearing
□ Double-row ball bearing
□ Three-row cylindrical roller combined bearing
□ Cross roller bearing
□ Double-row roller/ball combined bearing
□ Others:
Boundary Dimensions (mm)
Outer Dia:
Inner Dia:
Overall Height:
Requested Ring Material
□ 50Mn
□42CrMo
□ Others:
Friction Moment (Nm)
Starting:
Rotating:
Clearance (mm)
Axial:
Radial:
Bearing data
Requirement for Surface Treatment
Center Circle Diameter(mm)
Mounting Hole
Quantity & Diameter of Mounting Hole
Quantity&Diameter of Oil Hole
Inner Ring
Outer Ring
Transmission Design
□ No Gear
□ Internal Gear
Gear
Pinion
Number of Teeth
Module
Tooth Width
Press Angle
Gear data
Modification Coefficient
Tolerance Grade
Addendum Coefficient
Heat Treatment Condition
Center Distance
□ Adjustable
□ Not Adjustable
Original using number and company:
Other reference
Delivery required:
Target price:
Special require
Please give us the information as completely as possible, include a drawing (or sketch) of the application if available.
The data you supplied is the basis for our recommendation.
□ External Gear
Product type and structure of slewing rings
Four point contact slewing bearings
Single-row cross roller slewing bearings
Double-row balls slewing bearings
Three-row roller slewing bearings
Biserial type slewing bearings
Single-row ball slewing ring
1. Standard series 01 (JB/T2300-1999)
The single-row four point contact ball slewing ring is composed of two seating. It may used for slewing conveyors, welding operating
consoles, light, medium duty cranes, excavators and other engineering machines.
010
011,012
Basic type
Configuration size
toothless
Ext tooth
Int tooth
Dmm
010.20.200
011.20.200
-
280
120
010.20.224
011.20.224
-
304
010.20.250
011.20.250
-
010.20.280
011.20.280
010.25.315
Int gear
Weig
dn1 dn2
b mm
X
m mm
Demm
Z
De mm
Z
ht kg
60
248
152
12
16
40
0
3
300
98
-
-
19
144
60
272
176
12
16
40
0
3
312
105
-
-
21
330
170
60
298
202
18
16
40
0
4
352
86
-
-
23
-
360
200
60
328
232
18
16
40
0
4
384
94
-
-
26
011.25.315
013.25.315
408
222
70
372
258
20
18
50
0
5
435
85
190
40
41
010.25.355
011.25.355
013.25.355
448
262
70
412
298
20
18
50
0
5
475
93
235
49
46
010.25.400
011.25.400
013.25.400
493
307
70
457
343
24
18
50
0
6
528
86
276
48
54
010.25.450
011.25.450
013.25.450
543
357
70
507
393
24
18
60
0
6
576
94
324
56
60
011.30(25).500
013.30(25).500
5
629
123
367
74
012.30(25).500
014.30(25).500
6
628.8
102
368.4
62
011.30(25).560
013.30(25).560
5
689
135
427
86
012.30(25).560
014.30(25).560
6
688.8
112
428.4
72
6
722.8
126
494.4
83
8
774.4
94
491.2
62
6
850.8
139
572.4
96
8
854.4
104
571.2
72
8
966.4
118
635.2
80
10
968
94
634
64
8
1062.4
130
739.2
93
10
1068
104
734
74
10
1188
116
824
83
12
1185.6
96
820.8
69
10
1298
127
944
95
12
1305.6
106
940.8
79
12
1449.6
118
1048.8
88
14
1453.2
101
1041.6
75
12
1605.6
131
1192.8
100
14
1607.7
112
1195.6
86
14
1817.2
127
1391.6
100
16
1820.8
111
1382.4
87
14
2013.2
141
1573.6
113
16
2012.8
123
1574.4
99
16
2268.8
139
1734.4
109
18
2264.4
123
1735.2
97
16
2492.8
153
1990.4
125
18
2498.4
136
1987.2
111
18
2768.4
151
2239.2
125
20
2776
136
2228
112
18
3074.4
168
2527.2
141
20
3076
151
2528
127
20
3476
171
2828
142
22
3471.6
155
2824.8
129
010.30(25).560
010.30(25).630
010.30(25).670
010.40(30).800
010.40(30).900
010.40(30).1000
010.40(30).1120
010.45(35).1250
010.45(35).1400
010.45(35).1600
010.45(35).1800
010.60(40).2000
010.60(40).2240
010.60(40).2500
010.60(40).2800
010.75(50).3150
011.30(25).630
013.30(25).630
012.30(25).630
014.30(25).630
011.30(25).670
013.30(25).670
012.30(25).670
014.30(25).670
011.40(30).800
013.40(30).800
012.40(30).800
014.40(30).800
011.40(30).900
013.40(30).900
012.40(30).900
014.40(30).900
011.40(30).1000
013.40(30).1000
012.40(30).1000
014.40(30).1000
011.40(30).1120
013.40(30).1120
012.40(30).1120
014.40(30).1120
011.45(35).1250
013.45(35).1250
012.45(35).1250
014.45(35).1250
011.45(35).1400
013.45(35).1400
012.45(35).1400
014.45(35).1400
011.45(35).1600
013.45(35).1600
012.45(35).1600
014.45(35).1600
011.45(35).1800
013.45(35).1800
012.45(35).1800
014.45(35).1800
011.60(40).2000
013.60(40).2000
012.60(40).2000
014.60(40).2000
011.60(40).2240
013.60(40).2240
012.60(40).2240
014.60(40).2240
011.60(40).2500
013.60(40).2500
012.60(40).2500
014.60(40).2500
011.60(40).2800
013.60(40).2800
012.60(40).2800
014.60(40).2800
011.75(50).3150
013.75(50).3150
012.75(50).3150
014.75(50).3150
662
732
812
922
1022
1122
1242
1390
1540
1740
1940
2178
2418
2678
2978
3376
458
528
608
678
778
878
998
1110
1260
1460
1660
1825
2065
2325
2625
2922
mm
Ext gear
n
398
H
Gear data
D2 mm
602
mm
Mounting size
D1 mm
010.30(25).500
d
013,014
80
80
80
80
100
100
100
100
110
110
110
110
144
144
144
144
174
566
626
696
776
878
978
1078
1198
1337
1487
1687
1887
2110
2350
2610
2910
3286
434
494
564
644
722
822
922
1042
1163
1313
1513
1713
1891
2131
2391
2691
3014
20
20
24
24
30
30
36
36
40
40
45
45
48
48
56
56
56
18
18
18
18
22
22
22
22
26
26
26
26
33
33
33
33
45
60
60
60
80
80
80
80
90
90
90
90
120
120
120
120
120
150
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
85
95
110
120
220
240
270
300
420
480
550
610
1100
1250
1400
1600
2800
2. Standard series Q (JG/T66-1999)
No teeth
Configuration size
QU./ QW/
QN.
Outer teeth
Ext tooth
Int tooth
Mounting size
H
D
d
D
d
Inner teeth
h
D1
D2
n
hole A
Gear data
Hole B/C/D
φ
d1
T
m
X=-0.5
B
Wight
X=+0.5
de
Z
de
Z
kg
Ext tooth Gw
Int tooth Gn
315.20
406
222
408
224
60
10
370
260
10
17
M16
24
3
40
423
140
207
70
35
34
315.20A
406
222
408
224
60
10
370
260
10
17
M16
24
4
40
428
106
200
51
36
35
355.20
446
262
448
264
60
10
410
300
10
17
M16
24
3
40
462
153
246
84
40
39
355.20A
446
262
448
264
60
10
410
300
10
17
M16
24
4
40
468
116
240
61
41
40
400.20
490
307
493
310
60
10
455
345
12
17
M16
24
4
40
512
127
288
73
45
44
400.20A
490
307
493
310
60
10
455
345
12
17
M16
24
5
40
520
103
280
57
47
46
450.20
540
357
543
360
60
10
505
395
12
17
M16
24
4
40
564
140
336
85
51
50
450.20A
540
357
543
360
60
10
505
395
12
17
M16
24
5
40
570
113
330
67
53
52
500.20
590
407
593
410
60
10
555
445
14
17
M16
24
5
40
615
122
385
78
56
55
500.20A
590
407
593
410
60
10
555
445
14
17
M16
24
6
40
624
103
378
64
58
57
560.20
654
464
656
468
70
10
618
502
14
17
M16
30
4
50
680
169
440
111
78
76
560.20A
654
464
656
468
70
10
618
502
14
17
M16
30
5
50
685
136
435
88
79
77
630.20
724
534
726
538
70
10
688
572
16
17
M16
30
4
50
748
186
512
12
86
84
630.20A
724
534
726
538
70
10
688
572
16
17
M16
30
5
50
755
150
505
10
88
86
710.20
804
614
806
618
70
10
768
652
18
17
M16
30
5
50
835
166
585
11
99
97
710.20A
804
614
806
618
70
10
768
652
18
17
M16
30
6
50
840
139
582
98
101
97
800.20
894
704
896
708
70
10
858
742
20
17
M16
30
6
50
930
154
672
11
114
110
800.20A
894
704
896
708
70
10
858
742
20
17
M16
30
8
50
936
116
664
84
114
111
800.25
904
692
908
694
78
10
864
736
18
22
M20
36
6
58
942
156
654
11
143
142
800.25A
904
692
908
694
78
10
864
736
18
22
M20
36
8
58
952
118
648
82
147
142
900.25
1004
792
1008
794
78
10
964
836
20
22
M20
36
8
58
1048
130
744
94
162
163
900.25A
1004
792
1008
794
78
10
964
836
20
22
M20
36
10
58
1060
105
740
75
168
162
1000.25
1104
892
1108
894
78
10
1064
936
24
22
M20
36
8
58
1152
143
848
10
182
178
1000.25A
1104
892
1108
894
78
10
1064
936
24
22
M20
36
10
58
1160
115
840
85
185
179
1000.32
1120
876
1124
880
90
10
1074
926
24
24
M22
40
8
70
1160
144
832
10
227
230
1000.32A
1120
876
1124
880
90
10
1074
926
24
24
M22
40
10
70
1170
116
830
84
232
227
1120.32
1240
996
1244
1000
90
10
1194
1046
28
24
M22
40
10
70
1300
129
940
95
272
263
1120.32A
1240
996
1244
1000
90
10
1194
1046
28
24
M22
40
12
70
1308
108
936
79
275
262
1250.32
1370
1126
1374
1130
90
10
1324
1176
32
24
M22
40
10
70
1430
142
1070
10
302
294
1250.32A
1370
1126
1374
1130
90
10
1324
1176
32
24
M22
40
12
70
1440
119
1068
90
309
290
1400.32
1520
1276
1524
1280
90
10
1474
1326
36
24
M22
40
12
70
1584
131
1212
10
337
333
1400.32A
1520
1276
1524
1280
90
10
1474
1326
36
24
M22
40
14
70
1596
113
1204
87
347
336
1250.40
1390
1108
1394
1110
102
12
1336
1164
32
26
M24
45
10
80
1450
144
1050
10
396
388
1250.40A
1390
1108
1394
1110
102
12
1336
1164
32
26
M24
45
12
80
1452
120
1044
88
392
388
1400.40
1540
1258
1544
1260
102
12
1486
1314
36
26
M24
45
12
80
1608
133
1188
10
448
444
1400.40A
1540
1258
1544
1260
102
12
1486
1314
36
26
M24
45
14
80
1610
114
1190
86
443
434
1600.40
1740
1458
1744
1460
102
12
1686
1514
40
26
M24
45
12
80
1812
150
1392
11
528
509
1600.40A
1740
1458
1744
1460
102
12
1686
1514
40
26
M24
45
14
80
1820
129
1386
10
534
511
1800.40
1940
1658
1944
1660
102
12
1886
1714
44
26
M24
45
14
80
2016
143
1582
11
583
576
1800.40A
1940
1658
1944
1660
102
12
1886
1714
44
26
M24
45
16
80
2032
126
1568
99
607
591
1600.50
1762
1434
1766
1438
124
12
1704
1496
40
30
M27
50
12
100
1824
151
1368
11
714
714
1600.50A
1762
1434
1766
1438
124
12
1704
1496
40
30
M27
50
14
100
1834
130
1358
98
727
723
1800.50
1964
1634
1966
1638
124
12
1904
1696
44
30
M27
50
14
100
2044
145
1568
11
845
794
1800.50A
1964
1634
1966
1638
124
12
1904
1696
44
30
M27
50
16
100
2048
127
1552
98
843
818
2000.50
2162
1834
2166
1842
124
12
2104
1896
48
30
M27
50
16
100
2240
139
1760
111
912
891
2000.50A
2162
1834
2166
1842
124
12
2104
1896
48
30
M27
50
18
100
2250
124
1746
98
927
913
2240.50
2402
2074
2406
2078
124
12
2344
2136
54
30
M27
50
16
100
2480
154
1984
12
1020
1044
2240.50A
2402
2074
2406
2078
124
12
2344
2136
54
30
M27
50
18
100
2502
138
4980
111
1078
1041
2500.50
2662
2334
2666
2342
124
12
2604
3296
60
30
M30
50
18
100
2754
152
2250
12
1171
1132
2500.50A
2662
2334
2666
2342
124
12
2604
3296
60
30
M30
50
20
100
2760
137
2240
11
1178
1148
2500.60
2696
2304
2696
2308
150
14
2626
2374
60
33
M30
56
18
122
2790
154
2214
12
1677
1621
2500.60A
2696
2304
2696
2308
150
14
2626
2374
60
33
M30
56
20
122
2800
139
2200
111
1701
1654
2800.60
2992
2604
2996
2608
150
14
2926
2674
66
33
M30
56
18
122
3078
170
2502
14
1817
1871
2800.60A
2992
2604
2996
2608
150
14
2926
2674
66
33
M30
56
20
122
3100
154
2500
12
1904
1857
3150.60
3342
2954
3346
2958
150
14
3276
3024
72
33
M30
56
20
122
3440
171
2840
14
2087
2144
3150.60A
3342
2954
3346
2958
150
14
3276
3024
72
33
M30
56
22
122
3454
156
2838
13
2139
2129
3. Standard series HS (JB2300-78A)
Single-Row ball slewing ring, featured in quadruple-loading-points, is suitable to be assemblied to the mechanical part of various
cranes,excavators,pile-driver, scaling-ladder of fire trucks and under ground engines.
Notes:Cross roller slewing rings, except type and diameter of their rolling object, are in accord with single-row slewing ring in their basic
data for same diameter of rolling center.
HSB
HSW
Basic type
Configuration size
HSN
Mounting size
Gear data
Toothless
Ext tooth
Int tooth
D
mm
d mm
H
mm
D1
mm
D2
mm
n
Φ
mm
De
mm
HSB.25.625
HSW.25.625
HSW.25.625A
HSN.25.625
HSN.25.625A
725
525
80
685
565
18
18
60
HSW.25.720
HSW.25.720A
HSN.25.720
HSN.25.720A
820
HSW.30.820
HSW.30.820A
HSN.30.820
HSN.30.820A
940
HSB.25.720
HSB.30.820
HSB.30.880
HSB.30.1020
HSB.30.1220
HSB.35.1250
HSB.35.1435
HSB.35.1540
HSB.35.1700
HSB.40.1880
HSB.40.2115
HSB.40.2370
HSB.40.2600
HSB.50.2820
HSB.50.3120
HSB.50.3580
HSB.50.4030
HSB.50.4540
HSW.30.880
HSW.30.880A
HSN.30.880
HSN.30.880A
1000
HSW.30.1020
HSW30.1020A
HSN.30.1020
HSN.30.1020A
1170
HSW.30.1220
HSW.30.1220A
HSN.30.1220
HSN.30.1220A
1365
HSW.35.1250
HSW.35.1250A
HSN.35.1250
HSN.35.1250A
1400
HSW.35.1435
HSW.35.1435A
HSN.35.1435
HSN.35.1435A
1595
HSW.35.1540
HSW.35.1540A
HSN.35.1540
HSN.35.1540A
1720
HSW.35.1700
HSW.35.1700A
HSN.35.1700
HSN.35.1700A
1875
HSW.40.1880
HSW.40.1880A
HSN.40.1880
HSN.40.1880A
2100
HSW.40.2115
HSW.40.2115A
HSN.40.2115
HSN.40.2115A
2325
HSW.40.2370
HSW.40.2370A
HSN.40.2370
HSN.40.2370A
2600
HSW.40.2600
HSW.40.2600A
HSN.40.2600
HSN.40.2600A
2835
HSW.50.2820
HSW.50.2820A
HSN.50.2820
HSN.50.2820A
3085
HSW.50.3120
HSW.50.3120A
HSN.50.3120
HSN.50.3120A
3400
HSW.50.3580
HSW.50.3580A
HSW.50.4030
HSW.50.4030A
HSW.50.4540
HSW.50.4540A
HSN.50.3580
HSN.50.3580A
HSN.50.4030
HSN.50.4030A
HSN.50.4540
HSN.50.4540A
3920
4370
4860
620
705
760
875
1075
1090
1278
1360
1525
1665
1900
2146
2365
2555
2840
3240
3690
4210
80
95
95
95
120
120
120
140
140
160
160
180
180
200
200
240
240
240
780
893
956
1120
1310
1350
1535
1660
1815
2030
2245
2520
2750
3000
3310
3820
4270
4760
660
749
800
930
1130
1150
1335
1420
1585
1740
1980
2220
2450
2640
2930
3340
3790
4310
18
24
24
24
36
36
36
42
42
48
48
48
54
54
54
60
66
72
18
20
20
22
24
26
26
26
29
32
32
32
36
36
36
40
40
40
Ext gear
Int gear
Weight
X
m
mm
De
mm
Z
De
mm
Z
+1.4
5
751.9
146
498.8
101
+1.15
6
755.5
122
496.7
84
+1.4
6
860.3
139
586.6
99
+1.0
8
861.1
104
582.3
74
+1.4
6
980.6
159
664.5
112
+1.0
10
986.2
95
658.0
67
+1.15
8
1047.5
127
718.2
91
+1.0
10
1046.3
101
707.9
72
+1.4
8
1219.3
148
830.1
105
+1.15
10
1219.2
118
827.8
84
+1.4
10
1424.9
138
1027.8
104
+1.0
12
1435.9
116
1017.3
86
-0.35
10
1443
143
1037
105
+1.0
12
1449.6
117
1036.8
86
+1.15
12
1655.5
134
1221.2
103
+1.0
14
1661.2
115
1214.8
88
+1.4
12
1780.8
144
1293.1
109
+1.15
14
1791.1
124
1284.8
93
+1.15
14
1945.4
135
1452.7
105
+1.15
16
1950.8
118
1425.3
92
+1.4
14
2189.8
152
1592.6
115
+1.15
18
2194.6
118
1579.6
89
+1.4
16
2406.5
146
1804.1
114
+1.15
20
2418.4
117
1795.4
91
+1.4
18
2707.3
146
2065.6
116
+1.15
22
2704.4
119
2040.9
94
+1.4
18
2941.7
159
2263.5
127
+1.15
22
2946.9
130
2260.8
104
+1.4
20
3188.4
155
2455
124
+1.15
25
3198.4
124
2444.1
99
+1.4
22
3507.2
155
2722.5
125
+1.4
25
3509.6
136
2719
110
+1.4
22
4036.1
179
3188.4
143
+1.4
25
4035.6
157
2188.8
126
+1.4
22
4520.6
201
3558.3
163
+1.4
28
4522.4
157
3549.0
128
+1.4
22
4983.1
222
4042.2
185
+1.4
30
4992.9
162
4042.4
136
100
60
70
120
70
300
90
450
90
732
110
844
115
1400
115
1600
130
3400
190
190
2100
2400
150
150
520
610
110
130
210
230
70
90
kg
4000
6700
190
7700
8760
4. Light series L
Single-Row four point contact ball slewing ring (light series L) is composed of two seatings. It features compact in design, light in
weight, the ball contact with the circular raceway at four moments may be born simultaneously.
No teeth LU series
outer teeth
configuration size
LW series
mounting size
inner teeth LN series
gear data
bear data
Weight
type
Da
Di
H
La
Li
na
B/M
ni
B/M
LU414.20
518
304
56
490
332
8
18
12
18
LU544.20
648
434
56
620
462
10
18
14
18
LU644.20
748
534
56
720
562
12
18
16
LU744.20
848
634
56
820
662
12
18
LU844.20
948
734
56
920
762
14
LU944.20
1048
834
56
1020
862
LU1094.20
1198
984
56
1170
LU955.30
1100
805
90
LU1055.30
1200
905
LU1155.30
1300
LU1255.30
t
n1
h
A
C
Hu
Ho
m
z
k
b
kg
4
12
453
375
10.5
10.5
-
-
-
-
23.4
-
4
12
583
505
10.5
10.5
-
-
-
-
31.0
18
-
4
12
683
605
10.5
10.5
-
-
-
-
36.4
16
18
-
4
12
783
705
10.5
10.5
-
-
-
-
42.8
18
18
18
-
4
12
883
805
10.5
10.5
-
-
-
-
47.8
16
18
20
18
-
4
12
983
905
10.5
10.5
-
-
-
-
53.1
1012
16
18
20
18
-
4
12
1133
1055
10.5
10.5
-
-
-
-
61.9
1060
845
30
22
30
22
-
6
21
1017
893
19
19
-
-
-
-
131
90
1160
945
30
22
30
22
-
6
21
1117
993
19
19
-
-
-
-
145
1005
90
1260
1045
36
22
36
22
-
6
21
1217
1093
19
19
-
-
-
-
169
1400
1105
90
1360
1145
42
22
42
22
-
6
21
1317
1193
19
19
-
-
-
-
172
LU1355.30
1500
1205
90
1460
1245
42
22
42
22
-
6
21
1417
1293
19
19
-
-
-
-
186
LU1455.30
1600
1305
90
1560
1345
48
22
48
22
-
6
21
1517
1393
19
19
-
-
-
-
200
LW414.20
504
304
56
455
332
10
M12
12
18
20
4
12
-
375
10.5
-
5
99
-0.1
45.5
29.3
LW544.20
640.8
434
56
585
462
14
M12
14
18
20
4
12
-
505
10.5
-
6
105
-0.1
45.5
39.5
LW644.20
742.8
534
56
685
562
16
M12
16
18
20
4
12
-
605
10.5
-
6
122
-0.1
45.5
47.6
LW744.20
838.8
634
56
785
662
18
M12
16
18
20
4
12
-
705
10.5
-
6
138
-0.1
45.5
53.5
LW844.20
950.4
734
56
885
762
18
M12
18
18
20
4
12
-
805
10.5
-
8
117
-0.1
45.5
65.1
LW944.20
1046.4
834
56
985
862
20
M12
20
18
20
4
12
-
905
10.5
-
8
129
-0.1
45.5
69.6
LW1094.20
1198.4
984
56
1135
1012
22
M12
20
18
20
4
12
-
1055
10.5
-
8
148
-0.1
45.5
83
LW955.30
1096.2
805
90
1016
845
30
M20
30
22
20
6
21
-
893
19
-
9
120
-0.1
71
165
LW1055.30
1198
905
90
1116
945
30
M20
30
22
40
6
21
-
993
19
-
10
118
-0.1
71
183
LW1155.30
1298
1005
90
1216
1045
36
M20
36
22
40
6
21
-
1093
19
-
10
128
-0.1
71
200
LW1255.30
1398
1105
90
1316
1145
42
M20
42
22
40
6
21
-
1193
19
-
10
138
-0.1
71
216
LW1355.30
1498
1205
90
1416
1245
42
M20
42
22
40
6
21
-
1293
19
-
10
148
-0.1
71
234
LW1455.30
1598
1305
90
1516
1345
48
M20
48
22
40
6
21
-
1393
19
-
10
158
-0.1
71
250
LN414.20
518
326.5
56
490
375
8
18
12
M12
20
4
12
453
-
10.5
-
5
67
-0.15
45.5
27.1
LN544.20
648
445.2
56
620
505
10
18
16
M12
20
4
12
583
-
10.5
-
6
76
-0.1
45.5
36.9
LN644.20
748
547.2
56
720
605
12
18
18
M12
20
4
12
683
-
10.5
-
6
93
-0.1
45.5
43.7
LN744.20
848
649.2
56
820
705
12
18
20
M12
20
4
12
783
-
10.5
-
6
110
-0.1
45.5
51.1
LN844.20
948
737.6
56
920
805
14
18
20
M12
20
4
12
883
-
10.5
-
8
94
-0.1
45.5
61.6
LN944.20
1048
841.6
56
1020
905
16
18
22
M12
20
4
12
983
-
10.5
-
8
107
-0.1
45.5
65.8
LN1094.20
1198
985.6
56
1170
1055
16
18
24
M12
20
4
12
1133
-
10.5
-
8
125
-0.1
45.5
80.7
LN955.30
1100
812
90
1060
894
30
22
30
M20
40
6
21
1017
-
19
-
10
83
-0.1
71
159
LN1055.30
1200
912
90
1160
994
30
22
30
M20
40
6
21
1117
-
19
-
10
93
-0.1
71
176
LN1155.30
1300
1012
90
1260
1094
36
22
36
M20
40
6
21
1217
-
19
-
10
103
-0.1
71
192
LN1255.30
1400
1112
90
1360
1194
42
22
42
M20
40
6
21
1317
-
19
-
10
113
-0.1
71
208
LN1355.30
1500
1212
90
1460
1294
42
22
42
M20
40
6
21
1417
-
19
-
10
123
-0.1
71
226
LN1455.30
1600
1312
90
1560
1394
48
22
48
M20
40
6
21
1517
-
19
-
10
133
-0.1
71
243
Single-row cross roller slewing ring
The single-row crossed roller slewing ring is composed of two seatings. It features compact in design, light in weight,high precision and
small forting clearance. As the rollers are 1:1 cross arranged, it is suitable for high precision mounting and capable to bear axial force,
resultant moment and considerable large radial force.
Notes:1. n1-number of lubricating holes,evenly distributed,lubricating nipple M10×1 JB/T7940.1-TB7940.2
2. Mounting hole n-dn1,n-dn2,may be replaced with screw hole,tooth width may be taken as H-h.
110
111,112
Basic type
Toothless
Ext tooth
Configuration size
Int tooth
D
d mm
mm
110.25.500
110.25.560
111.25.500
113.25.500
112.25.500
114.25.500
111.25.560
113.25.560
602
662
112.25.560
114.25.560
111.25.630
113.25.630
110.25.630
110.25.710
110.28.800
732
112.25.630
114.25.630
111.25.710
113.25.710
112.25.710
114.25.710
111.28.800
113.28.800
112.28.800
114.28.800
111.28.900
113.28.900
110.28.900
110.28.1000
110.28.1120
110.32.1250
110.32.1400
110.32.1600
110.32.1800
922
1022
112.28.900
114.28.900
111.28.1000
113.28.1000
112.28.1000
114.28.1000
111.28.1120
113.28.1120
112.28.1120
114.28.1120
111.32.1250
113.32.1250
112.32.1250
114.32.1250
111.32.1400
113.32.1400
112.32.1400
114.32.1400
111.32.1600
113.32.1600
112.32.1600
114.32.1600
111.32.1800
113.32.1800
112.32.1800
114.32.1800
111.40.2000
113.40.2000
110.40.2000
110.40.2240
812
1122
1242
1390
1540
1740
1940
2178
112.40.2000
114.40.2000
111.40.2240
113.40.2240
112.40.2240
114.40.2240
111.40.2500
113.40.2500
112.40.2500
114.40.2500
111.40.2800
113.40.2800
110.40.2500
2418
2678
110.40.2800
2978
112.40.2800
114.40.2800
111.50.3150
113.50.3150
110.50.3150
3376
112.50.3150
114.50.3150
398
458
528
608
678
778
878
998
1110
1260
1460
1660
1825
2065
2325
2625
2922
113,114
Mounting size
H
D1
D2
mm
mm
mm
75
566
434
75
75
75
82
82
82
82
91
91
91
91
112
112
112
112
134
626
696
776
878
978
1078
1198
1337
1487
1687
1887
2110
2350
2610
2910
3286
494
564
644
722
822
922
1042
1163
1313
1513
1713
1891
2131
2391
2691
3014
n
20
20
24
24
30
30
36
36
40
40
45
45
48
48
56
56
56
Gear data
dn1
b
dn2
mm
18
60
18
18
18
22
22
22
22
26
26
26
26
33
33
33
33
45
60
60
60
65
65
65
65
75
75
75
75
90
90
90
90
110
X
+0.5
Ext gear
Int gear
De
mm
mm
5
629
123
367
74
6
628.8
102
368.4
62
5
689
135
427
86
6
688.8
112
428.4
72
6
772.8
126
494.4
83
8
744.4
94
491.2
62
6
850.8
139
572.4
96
8
854.4
104
571.2
72
8
966.4
118
635.2
80
10
968
94
634
64
8
1062.4
130
739.2
93
10
1068
104
734
74
10
1188
116
824
83
12
1185.6
96
820.8
69
10
1298
127
944
95
12
1305.6
106
940.8
79
12
1449.6
118
1048.8
88
14
1453.2
101
1041.6
75
12
1605.6
131
1192.8
100
14
1607.2
112
1195.6
86
14
1817.2
127
1391.6
100
16
1820.8
111
1382.4
87
14
2013.2
141
1573.6
113
16
2012.8
123
1574.4
99
16
2268.8
139
1734.4
109
18
2264.4
123
1735.2
97
16
2492.8
153
1990.4
125
18
2498.4
136
1987.2
111
18
2768.4
151
2239.2
125
20
2776
136
2228
112
18
3074.4
168
2527.2
141
20
3076
151
2528
127
20
3476
171
2828
142
22
3471.6
155
2824.8
129
Z
De
Weight
m
Z
+0.5
+0.5
100
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
110
170
190
+0.5
+0.5
80
90
+0.5
+0.5
kg
mm
210
230
350
400
440
500
900
+0.5
1000
1100
+0.5
1250
+0.5
2150
2. Standard series J (JG/T67-1999)
110
Configuration size
JW,
JN,
111,112
Ext tooth
Mounting size
Int tooth
Hole A
H
JU
D
dn
D
dn
654
464
656
468
113,114
Du
Dn
Gear data
Worm hole B/C/D
n
Ext tooth x=-0.5
L
Φ
d1
T
17
M16
30
560.14
70
618
502
14
630.14
534
726
538
70
688
572
16
17
M16
30
710.14
614
806
618
70
768
652
18
17
M16
30
800.14
704
896
708
70
858
742
20
17
M16
30
800.18
692
908
694
78
864
736
18
22
M20
36
900.18
792
1008
794
78
964
836
20
22
M20
36
1000.18
892
1108
894
78
1064
936
24
22
M20
36
1000.22
876
1124
880
90
1074
926
24
24
M22
40
1120.22
996
1244
1000
90
1194
1046
28
24
M22
40
1250.22
1126
1374
1130
90
1324
1176
32
24
M22
40
1400.22
1276
1524
1280
90
1474
1326
36
24
M22
40
1250.28
1108
1694
1110
102
1336
1164
32
26
M24
45
1400.28
1258
1544
1260
102
1486
1314
36
26
M24
45
1600.28
1458
1744
1460
102
1686
1514
40
26
M24
45
1800.28
1658
1944
1660
102
1886
1714
44
26
M24
45
1600.36
1434
1766
1438
124
1704
1496
40
30
M27
50
1800.36
1634
1966
1638
124
1904
1696
44
30
M27
50
2000.36
2000.36A
1834
2166
1842
124
2104
1896
48
30
M27
50
136
79
435
88
77
4
748
186
86
512
129
84
5
755
150
88
505
102
86
5
835
166
99
585
118
97
6
840
139
101
582
98
97
6
930
154
114
672
113
110
8
936
116
114
664
84
111
6
942
156
143
654
110
142
8
952
118
147
648
82
142
8
1048
130
162
744
94
163
10
1060
105
168
740
75
162
8
1152
143
182
848
107
178
10
1160
115
185
840
85
179
8
1160
144
227
832
105
230
10
1170
116
232
830
84
227
10
1300
129
272
940
95
263
12
1308
108
275
936
79
262
10
1430
142
302
1070
108
294
12
1440
119
309
1068
90
290
12
1584
131
337
1212
102
333
14
1596
113
347
1204
87
336
10
1450
144
396
1050
106
388
12
1452
120
392
1044
88
388
12
1608
133
448
1188
100
444
14
1610
114
443
1190
86
434
12
1812
150
528
1392
117
509
14
1820
129
534
1386
100
511
14
2016
143
583
1582
114
576
16
2032
126
607
1568
99
591
12
1824
151
714
1368
115
714
14
1834
130
727
1358
98
723
14
2044
145
845
1568
113
794
16
2048
127
843
1552
98
818
16
2240
139
912
1760
111
891
18
2250
124
927
1746
98
913
100
1800.36A
2162
685
100
1600.36A
1964
5
80
1800.28A
1762
76
80
1600.28A
1940
111
80
1400.28A
1740
440
80
1250.28A
1540
78
70
1400.22A
1390
169
70
1250.22A
1520
680
70
1120.22A
1370
4
70
1000.22A
1240
kg
58
1000.18A
1120
Z
58
900.18A
1104
da mm
58
800.18A
1004
kg
50
800.14A
904
Z
50
710.14A
894
da mm
50
630.14A
804
x=+0.5
50
560.14A
724
Int tooth
m
100
Double-row ball slewing ring(Standard series 02)
The double-row ball slewing ring has three seat-rings.The steel balls and the spacers may be directly arranged into the upper and lower
raceways.Two rows of steel balls with different diameters are fitted according to the load. Such open mode fitting features extraordinary
convenience.The load angles of both upper and lower races are 90,which enable the bearing to bear large axial force and the tilting
moment.
020
Basic type
Toothless
020.25.500
020.25.560
020.25.630
020.25.710
020.30.800
020.30.900
020.30.1000
020.30.1120
020.40.1250
020.40.1400
020.40.1600
020.40.1800
020.50.2000
020.50.2240
020.50.2500
020.50.2800
020.60.3150
020.60.3550
020.60.4000
020.60.4500
021,022
Configuration size
Ext tooth
Int tooth
021.25.500
023.25.500
022.25.500
024.25.500
021.25.560
023.25.560
022.25.560
024.25.560
021.25.630
023.25.630
022.25.630
024.25.630
021.25.710
023.25.710
022.25.710
024.25.710
021.30.800
023.30.800
022.30.800
024.30.800
021.30.900
023.30.900
022.30.900
024.30.900
021.30.1000
023.30.1000
022.30.1000
024.30.1000
021.30.1120
023.30.1120
022.30.1120
024.30.1120
021.40.1250
023.40.1250
022.40.1250
024.40.1250
021.40.1400
023.40.1400
022.40.1400
024.40.1400
021.40.1600
023.40.1600
022.40.1600
024.40.1600
021.40.1800
023.40.1800
022.40.1800
024.40.1800
021.50.2000
023.50.2000
022.50.2000
024.50.2000
021.50.2240
023.50.2240
022.50.2240
024.50.2240
021.50.2500
023.50.2500
022.50.2500
024.50.2500
021.50.2800
023.50.2800
022.50.2800
024.50.2800
021.60.3150
023.60.3150
022.60.3150
024.60.3150
021.60.3550
023.60.3550
022.60.3550
024.60.3550
021.60.4000
023.60.4000
022.60.4000
024.60.4000
021.60.4500
023.60.4500
022.60.4500
024.60.4500
D mm
616
676
746
826
942
1042
1142
1262
1426
1576
1776
1976
2215
2455
2715
3015
3428
3828
4278
4778
d mm
384
444
514
594
658
758
858
978
1074
1224
1424
1624
1785
2025
2285
2585
2872
3272
3722
4222
023,024
Mounting size
H
106
106
106
106
124
124
124
124
160
160
160
160
190
190
190
190
226
226
226
226
D1
580
640
710
790
898
998
1098
1218
1374
1524
1724
1924
2149
2389
2649
2949
3338
3738
4188
4688
D2
420
480
550
630
702
802
902
1022
1126
1272
1476
1676
1851
2091
2351
2651
2962
3362
3812
4312
n
20
20
24
24
30
30
36
36
40
40
45
45
48
48
56
56
56
56
60
60
Gear data
dn1
18
18
18
18
22
22
22
22
26
26
26
26
33
33
33
33
45
45
45
45
b
60
60
60
60
80
80
80
80
90
90
90
90
120
120
120
120
150
150
150
150
X
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
Ext gear
Int gear
Weig
m
De mm
Z mm
De mm
Z
5
644
126
357
72
6
646.8
105
350.4
59
5
704
138
417
84
6
706.8
115
410.4
69
6
790.8
129
482.4
81
8
790.4
96
475.2
60
6
862.8
141
560.4
94
8
862.4
105
555.2
70
8
982.4
120
619.2
78
10
988
96
614
62
8
1086.4
133
715.2
90
10
1088
106
714
72
10
1198
117
814
82
12
1197.6
97
796.8
67
10
1318
129
924
93
12
1317.6
107
916.8
77
12
1497.6
122
1012.8
85
14
1495.2
104
1013.6
73
12
1641.6
134
1156.8
97
14
1649.2
115
1153.6
83
14
1845.2
129
1349.6
97
16
1852.8
113
1350.4
85
14
2055.2
144
1545.6
111
16
2060.8
126
1542.4
97
16
2300.8
141
1702.4
107
18
2300.4
125
1699.2
95
16
2540.8
156
1942.4
122
18
2552.4
139
1933.2
108
18
2804.4
153
2203.2
123
20
2816
138
2188
110
18
3110.4
170
2491.2
139
20
3116
153
2488
125
20
3536
174
2768
139
22
3537.6
158
2758.8
126
20
3936
194
3168
159
22
3933.6
176
3176.8
145
22
4395.6
197
3616.8
165
25
4395
173
3610
145
22
4879.6
219
4122.8
188
25
4895
193
4110
165
ht
100
115
130
140
200
250
300
340
580
650
750
820
1150
1500
1700
1900
3300
3700
4200
4700
Three-row roller slewing ring
Three-row roller slewing ring has three seat-rings ,which seper a thing the upper, lower and radial raceways, via which the load of each
row of the rollers maybe specified. It may bear different loads simultaneously and its load capacity is the largest one among the four
model. Owing to large size of its axle and radius, it is sturdy and especially heavy duty mobile cranes etc.
Basic type
Configuration size
Mounting size
Gear data
Ext gear
Int gear
Weight kg
toothless
130.25.500
130.25.560
130.25.630
130.25.710
130.32.800
130.32.900
130.32.1000
130.32.1120
130.40.1250
130.40.1400
130.40.1600
130.40.1800
130.45.2000
Ext tooth
Int tooth
m mm
De mm
Z mm
De mm
Z
131.25.500
133.25.500
5
664
130
337
68
200
132.25.500
131.25.560
134.25.500
6
664.8
108
338.4
57
200
133.25.560
5
724
142
397
80
224
132.25.560
131.25.630
134.25.560
6
724.8
118
398.4
67
224
133.25.630
6
808.8
132
458.4
77
262
132.25.630
131.25.710
134.25.630
8
806.4
98
459.2
58
257
133.25.710
6
886.8
145
536.4
90
295
132.25.710
134.25.710
131.32.800
133.32.800
8
886.4
105
539.2
68
291
8
1006.4
123
595.2
75
490
132.32.800
134.32.800
10
1008
131.32.900
133.32.900
8
1102.4
98
594
60
487
135
691.2
87
549
D1 mm
634
366
148
598
694
764
844
964
1064
426
496
576
636
736
148
148
148
182
182
658
728
808
920
1020
D2
mm
402
462
532
612
680
780
n
dn1 dn2
b mm
X
24
18
80
+0.5
24
28
28
36
36
18
18
18
22
22
80
80
80
120
120
+0.5
+0.5
+0.5
+0.5
+0.5
134.32.900
10
1108
108
694
70
564
133.32.1000
10
1218
119
784
79
631
132.32.1000
134.32.1000
12
1221.6
99
784.8
66
631
131.32.1120
133.32.1120
10
1338
131
904
91
710
132.32.1120
134.32.1120
12
1341.6
109
904.8
76
710
131.40.1250
133.40.1250
12
1509.6
123
988.8
83
1137
132.40.1250
134.40.1250
14
1509.2
105
985.6
71
1126
131.40.1400
133.40.1400
12
1665.6
136
1144.8
96
1299
132.40.1400
134.40.1400
14
1663.2
116
1139.6
82
1281
131.40.1600
133.40.1600
14
1873.2
131
1335.6
96
1501
132.40.1600
134.40.1600
16
1868.8
114
1334.4
84
1471
131.40.1800
133.40.1800
14
2069.2
145
1531.6
110
1682
132.40.1800
134.40.1800
16
2076.8
127
1526.4
96
1697
131.45.2000
133.45.2000
16
2300.8
141
1702.4
107
2147
132.45.2000
134.45.2000
18
2300.4
125
1699.2
95
2129
131.45.2240
133.45.2240
16
2556.8
157
1926.4
121
2501
132.45.2240
134.45.2240
18
2552.4
139
1933.2
108
2461
131.45.2500
133.45.2500
18
2822.4
154
2185.2
122
2786
132.45.2500
134.45.2500
20
2816
138
2188
110
2731
131.45.2800
133.45.2800
18
3110.4
170
2491.2
139
3067
132.45.2800
134.45.2800
20
3116
153
2488
125
3079
131.50.3150
133.50.3150
20
3536
174
2768
1239
5025
132.50.3150
134.50.3150
22
3537.6
158
2758.8
126
5009
131.50.3550
133.50.3550
20
3936
194
3168
159
5113
1164
1284
1445
1595
1795
1995
2221
2461
2721
130.50.3550
130.50.4000
H mm
132.32.900
130.45.2500
130.50.3150
d mm
131.32.1000
130.45.2240
130.45.2800
D mm
3021
3432
3832
836
956
1055
1205
1405
1605
1779
2019
2279
2579
2868
3268
182
182
220
220
220
220
231
231
231
231
270
270
1120
1240
1393
1543
1743
1943
2155
2395
2655
2955
3342
3742
880
1000
1107
1257
1457
1657
1845
2085
2345
2645
2958
3358
40
40
45
45
48
48
60
60
72
72
72
72
22
22
26
26
26
26
33
33
33
33
45
45
120
120
150
150
150
150
160
160
160
160
180
180
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
+0.5
132.50.3550
134.50.3550
22
3933.6
176
3154.8
144
5661
131.50.4000
133.50.4000
22
4395.6
197
3116.8
165
6508
132.50.4000
134.50.4000
25
4395
173
3610
145
6449
131.50.4500
133.50.4500
22
4901.6
220
4122.8
188
7438
25
4895
193
4110
165
7308
130.50.4500
4282
4782
132.50.4500
134.50.4500
3718
4218
270
270
4192
4692
3808
4308
80
80
45
45
180
180
+0.5
+0.5
2. Standard series S (JG/T68-1999)
Three-row roller slewing ring has three seat-rings ,which seper a thing the upper, lower and radial raceways, via which the load of each
row of the rollers maybe specified. It may bear different loads simultaneously and its load capacity is the largest one among the four
model.
Owing to large size of its axle and radius, it is sturdy and especially heavy duty machines which require large working diameter, such as
bucket wheel excavator, wheeled cranes, deck cranes, steel transporters, heavy duty mobile cranes etc.
No teeth
outer teeth
Configuration size
SWA/S
NA
series
inner teeth
Mounting size
Gear data
Ext gear
Int gear
Weight kg
b
x
m
De
Z
De
Z
Ext
toothi
ng
Gw
45
98
+0.5
10
1210
118
790
80
426
418
M24
45
98
+0.5
12
1344
109
900
76
478
470
26
M24
45
98
+0.5
12
1476
120
1032
87
540
524
36
26
M24
45
98
+0.5
14
1638
114
1162
84
626
614
1494
40
26
M24
45
98
+0.5
14
1834
128
1372
99
708
686
1716
1474
32
33
M30
56
110
+0.5
14
1862
130
1330
96
992
966
1684
1916
1674
36
33
M30
56
110
+0.5
16
2080
127
1520
96
1121
1096
2126
1884
2116
1874
44
33
M30
56
110
+0.5
16
2272
139
1728
109
1211
1196
148
2366
2124
2356
2114
48
33
M30
56
110
+0.5
18
2520
137
1944
109
1373
1396
2310
148
2626
2384
2616
2374
54
33
M30
56
110
+0.5
18
2790
152
2214
124
1561
1532
2458
2000
182
2394
2100
2380
2086
40
39
M36
66
130
+0.5
18
2556
139
1908
107
1968
2002
2282
2718
2270
182
2654
2360
2640
2346
44
39
M36
66
130
+0.5
18
2826
154
2178
122
2245
2199
3040
2580
3018
2560
182
2954
2660
2940
2646
48
39
M36
66
130
+0.5
20
3140
154
2460
124
2566
2526
3150.32
3380
2932
3368
2920
182
3304
3010
3290
2996
56
39
M36
66
130
+0.5
20
3480
171
2820
142
2316
2788
2800.40
3040
2562
3038
2560
220
2962
2640
2960
2638
56
39
M36
66
160
+0.5
20
3140
154
2460
124
3264
3213
3150.40
3380
2912
3388
2910
220
3312
2990
3310
2988
64
39
M36
66
160
+0.5
22
3498
156
2794
128
3740
3683
3550.40
3780
3312
3788
3300
220
3712
3390
3710
3388
72
39
M36
66
160
+0.5
22
3894
174
3190
146
4175
4171
4000.40
4240
3762
4238
3750
220
4162
3840
4160
3838
84
39
M36
66
160
+0.5
24
4368
179
3624
152
4801
4810
3150.50
3430
2884
3416
2870
268
3340
2974
3326
2960
56
45
M42
80
190
+0.5
24
3552
145
2736
115
5176
5072
3550.50
3840
3284
3816
3270
268
3740
3374
3726
3360
64
45
M42
80
190
+0.5
24
3960
162
3144
132
5798
5816
4000.50
4290
3734
4266
3720
268
4190
3824
4176
3810
72
45
M42
80
190
+0.5
24
4416
181
3600
151
6544
6512
Ext toothing
Int toothing
Ext toothing
Int toothing
Worm hole
n
Φ
894
28
1214
1014
1156
1344
1506
1306
128
1706
1400
148
1982
1600
1818
2182
2430
2058
2500.25
2700
2240.32
D
d
D
d
H
D1
D2
D1
D2
Φ
T
1000.20
1156
854
1146
844
128
1106
906
1094
26
M24
1120.20
1280
974
1266
964
128
1226
1026
30
26
1250.20
1410
1104
1396
1094
128
1356
1144
36
1400.20
1560
1254
1546
1240
128
1494
1294
1600.20
1760
1454
1746
1444
1506
1694
1600.25
1790
1418
1782
1726
1484
1800.25
2000
1618
148
1926
2000.25
2190
1810
148
2240.25
2422
2040
2318
2682
2464
2022
2500.32
2730
2800.32
Int
toothing
Gn
List of slewing rings used on excavators
NO
Komatsu
NO
Komatsu
NO
Komatsu
NO
Hitachi
NO
Hitachi
1
PC60-6(Z=76)
13
PC200-2
25
PC200-7(Z=92)
1
EX60-1
13
EX200-3
2
PC60-6(Z=80)
14
PC200-3
26
PC220-7
2
EX60-2
14
EX200-5
3
PC60-7(Z=76)
15
PC200-5
27
PC300-2
3
EX60-3
15
EX210-5
4
PC60-7(Z=80)
16
PC220-3
28
PC300-3
4
EX60-5
16
ZX120
5
PC90-6
17
PC220-5
29
PC300-5
5
EX90
17
ZX200
6
PC100-5
18
PC228
30
PC300-6
6
EX100-1
18
ZX225
7
PC120-5
19
PC200-6(S6D95)
31
PC300-7
7
EX120-1
19
ZX230
8
PC120-6(4D95)
20
PC200-6(S6D102)(1)
32
PC400-3
8
EX120-2
20
ZX240
21
PC200-6(S6D102)(2)
33
PC400-5
9
EX120-3
21
EX300-1
9
PC120-6(4D102)
10
PC150-5
22
PC220-6(S6D95)
34
PC400-6
10
EX120-5
22
EX300-2
11
PC20HT
23
PC220-6(S6D102)
35
PC450
11
EX200-1
23
EX300-3
12
PC200-1
24
PC200-7(Z=110)
12
EX200-2
24
EX300-5
NO
Kobelco
NO
Kobelco
NO
Kobelco
NO
Cartpillar
NO
Cartpillar
1
SK07-1
7
SK60
13
SK200-3
2
CAT215
8
CAT320C
2
SK07-2
8
SK907B
14
SK200-5
3
CAT215B
9
CAT320L
3
SK07-1-N2(粗）
9
SK100
15
SK200-6
4
CAT226
10
CAT325
4
SK07-N2(细）
10
SK120-5
16
SK300
5
CAT305.5
11
CAT325C
5
SK03
11
SK200-1
NO
Cartpillar
6
CAT312
NO
6
SK09
12
SK200-2
1
E200B
7
CAT320B
1
NO
Kato
NO
Kato
NO
Kato
NO
Kato
NO
Volvo
VOLVO210(EC210)
Samsung
1
HD100
5
HD450-5
9
HD700-5
13
HD770-2
1
PS132
2
HD250-5
6
HD450-7
10
HD700-7
14
HD800-7
2
PS210
3
HD250-7
7
HD516
11
HD770SE
15
HD820-1
3
MX08-2
4
HD400-7
8
HD700-2
12
HD770-1
16
HD900-7
4
PS292
NO
Sumitomo
NO
Sumitomo
NO
Sumitomo
NO
Sumitomo
1
SH60
5
SH200A1
9
SH260
13
SH340
2
SH120A1
6
SH200A2
10
SH265
14
SH350
3
SH120A2
7
SH200A3
11
SH280
15
SH430
4
SH120A3
8
SH200C3
12
SH300
16
SH40T
NO
Hyundai
NO
Hyundai
NO
Doosan
NO
Doosan
1
R60-5
11
R245
1
DH55
11
DH300-5
2
R60-7
12
R260-5
2
DH55-5
12
DH320
3
R130-5
13
R280
3
DH60-7
13
DH330-3
4
R130-7
14
R290
4
DH200-3
14
DH360-5
5
R150W
15
R300
5
DH220-3
15
DH500
6
R200
16
R305-7
6
DH220-5
7
R210-3
17
R320
7
DH225-7
8
R215-7
18
R335-7
8
DH10L
9
R220-5
19
R360
9
DH280
10
R225-7
20
R450
10
DH290
RTR can supply the slewing rings used in the standard excavator, only give us the machine number is OK.
And we have most of the slewing rings used in the list above in stock.
For the one not list, please contact with us to check the availability.
NO
1
Liebherr
914/924
 Forged Rings for Slewing Rings
RTR also can supply you the forging rings used to manufacture the slewing rings and bearings.
Chemical analysis
Steel
C
Si
Mn
P
S
Cr
Mo
Ni
Cu
50Mn
0.48~0.56
0.17~0.37
0.70~1.00
≤0.035
≤0.035
≤0.25
—
≤0.30
≤0.20
42CrMo
0.38~0.45
0.17~0.37
0.50~0.80
≤0.035
≤0.035
0.90~1.20
0.15~0.25
—
—
45
0.42~0.50
0.17~0.37
0.50~0.80
≤0.035
≤0.035
≤0.25
≤0.30
≤0.20
—
* or other materials as required by customers
Mechanical properties
Steel Grade
Tensile Strength σb
Yield Point σs
Elongation δ5
Shrinkage ψ
Impact Aku2
≥645MPa
≥390MPa
≥13%
≥40%
≥31J
≥1080MPa
≥930MPa
≥12%
≥45%
≥63J
≥600MPa
≥355MPa
≥16%
≥40%
≥39J
GB/T 699-1999
50Mn
GB/T 699-1999
42CrMo
GB/T 699-1999
45
Contrast of steel grade (heat treatment: quenching & tempering, normalizing)
Chinese Standard
GB/T 699-1999
DIN Standard
AISI Standard
ISO Standard
—
AISI1053
SL，SM
42CrMo4
4140
42CrMo4
C45E
AISI1045
C45E4
50Mn
GB/T 699-1999
42CrMo
GB/T 699-1999
45
Hardness of forged rings
Steel Grade
Quenching&Tempering
Hardness
GB/T 699-1999
HB229~269
Normalizing
Hardness
HB179~235
50Mn
GB/T 699-1999
HB269~321
As required by customers
HB228~280
HB170~217
42CrMo
GB/T 699-1999
45
The hardness is tested by Brinell Apparatus (HBW10/3000). The Brinell Apparatus may bring a depression in the surface of the forged rings.
 Fastening Bolts
RTR can supply the fastening bolts for the slewing ring bearings for mounting. We can produce as customer requirement, according to
the bolt grade. Normally the bolts for mounting the slewing rings need very strong abilities. Normally the bolts can use the same material
as the slewing ring bearings, or also can use others as requires.And we can do some coat on the surface of the bolts.
 Pinion
We can produce the match pinion of slewing rings according to the spec. If customers purchase pinion together with slewing rings, that
can be better it matching work, and make your purchasing easily and all solved by RTR. We also can provide fastening bolts for the
slewing rings.
 Slewing ring repair and refurbishment
Slewing ring refurbishment can offer significant savings when compared to a replacement slewing ring. Repair or refurbishment is
usually only economic on slewing ring with large bore size and depends on the degree of wear or damage. Repair on smaller slewing
rings is possible, but only becomes economic on larger batch sizes.
Certain types of damage are easy to repair, such as minor surface scuffing or light staining. Moderate surface conditions, such as
corrosion, indentation of fine spalling, and more difficult to repair and will probably require raceway grinding. Also some bad condition
we have to change the rollers/balls and cage, re-grinding on the raceway and surface. It all depends on the status of the slewing rings.
So if you want to repair on your slewing ring, please contact with us to show the condition of the slewing rings and better the photos to
let us check if can be repaired and give you the repair suggestion on this.
Before repair
1, Send us the details status of the slewing ring (bearings),
include photo and drawing
2, We will see if we can repair or not, if needed we will send
engineer to check.
3, Send customers repair plan and rough cost
4, Customer send us the old slewing rings (bearings)
After repair
5, After receiving, we may clean, measure and give you the
detailed test report and exact cost.
6, Repair according to plan, and if some old parts can not be
used, we may do the new one.
7, When finish, customer can come to factory to inspect.
8, Send good finished ones to customers.
Slew drive
1. RTR Slew Drive Introduction
Introduction：
RTR slewing drives are powered with hourglass worm technology for maximum gear torque and the smoothest rotation. Typical slew
drive applications include solar industry, truck cranes, man lifts, utility equipment, hydraulic attachments, oil tool equipment, marine
cranes, tire handlers, digger derricks and automotive lifts, but the slew drives are used in many other applications requiring load holding
and rotational capability. We offer different slew drive models with different moment load capacities.
The standard slew drives are fitted with an open housing and single self locking hourglass worm shaft. Once the power source input is
returned to neutral, the worm shaft will lock the load into position without requiring any external braking device.
The slew drive can be with worm gear and helical gear. And also for the inside slewing ring, it can be single-row ball slewing ring, and
also can be double-row ball slewing ring. The one with double-row can take much more load. It can be chosen depended on your
application.
2. RTR Slew Drive Application
Application::
Typical slew drive applications include solar industry, truck cranes, man lifts, utility equipment, hydraulic attachments, oil tool
equipment, marine cranes, tire handlers, digger derricks and automotive lifts, but the slew drives are used in many other applications
requiring load holding and rotational capability. We offer different slew drive models with different moment load capacities.
3. RTR Slew Drive Models
1) Open housing slew drive (S type)
Open housing slew drive mainly apply to the lower working condition, such as no high requirement for the dustproof, rain-proof and
anti-corrosion.
Dimensions parameters
External dimensions
Model
L1
L2
L3
H1
Installation dimensions
H2
D1
D2
D3
D4
Mounting hole data
D5
n1
M1
mm
T1
T2
n2
Inner ring
M2
T3
Outer ring
S7
183
182
132.7
78.5
63.4
145
120.6
98
163
203.2
10
M12
25
45
8
M12
25
S9
296
322
174.15
102.7
89.3
204
175
145
222.5
270
15
M16
30
65
16
M16
30
S12
485
331
220
113
89.4
289
259
229
308.5
358
19
M16
30
69.4
18
M16
30
S14
520
337
237.6
113
89.1
325
295
265
342.5
390
23
M16
30
69
18
M16
30
S17
601
385
275.3
123
103.1
406
365.1
323.9
422.1
479.4
20
M16
32
79
20
M16
32
S21
723
469
339
130.2
137
533
466.7
431.8
525.5
584.2
35
M20
40
91
36
M20
40
S25
848
469
401.8
133.3
130
628
565
512
620
675
35
M20
40
87
36
M20
40
Performance parameters
Model
Rated
output
Tilting
moment
Axial load
Radial load
Holding
torque
Gear
Tracking
Self-lockin
Weight
torque (kN.m)
torque (kN.m)
(kN)
(kN)
(kN.m)
ratio
precision
g gears
(kg)
S7
1.5
13.5
133
53
10.4
73:1
≤0.20
Yes
18
S9
6.5
33.9
338
135
38.7
61:1
≤0.20
Yes
42
S12
7.5
54.3
475
190
43
78:1
≤0.20
Yes
48
S14
8
67.8
555
222
48
85:1
≤0.20
Yes
55
S17
10
135.6
976
390
72.3
102:1
≤0.15
Yes
87
S21
15
203
1598
640
105.8
125:1
≤0.15
Yes
142
S25
18
271
2360
945
158.3
150:1
≤0.15
Yes
195
2) Enclosed housing slew drive (SE/PE/ZE type)
Enclosed housing slew drive mainly apply to the relatively high condition for high requirement for dustproof,rain-proof and
anti-corrosion occasion. Precision grade IP65.
External dimensions
L1
model
L2
L3
H1
H2
D1
D2
D3
D4
Mounting hole data
D5
D6
n1
mm
M1
T1
T2
n2
M2
Inner ring
T3
T4
Outer ring
SE3/ PE3/ ZE3
190
157
80
94.5
97.5
126
100
-
-
100
115
6
M10
17
32
6
M10
17
-
SE5/ PE5/ ZE5
228
173
100.1
107.5
119
140
100
-
-
128
146
6
M10
18
33
6
M10
20
-
SE7/ PE7/ ZE7
295
185
132.7
76.5
80.8
145
120.6
98
163
203.2
237.5
10
M12
25
45
8
M12
25
42.4
SE9/ PE9/ ZE9
408
314
174.2
102
108
204
175
145
222.5
270
316
15
M16
30
65
16
M16
30
53
SE12/ PE12/ ZE12
498
324
220
106
110.5
289
259
229
308.5
358
402
19
M16
30
69.4
18
M16
30
51
SE14/ PE14/ ZE14
533
330
237.6
106
110
325
295
265
342.5
390
435.5
23
M16
30
69
18
M16
30
51
SE17/ PE17/ ZE17
578
378
282.55
212
126
406
365.1
324
425
479.4
522
20
M16
32
79
20
M16
32
55
SE21/ PE21
737
462
339.1
133
136.5
533
466.7
431.8
525.5
584.2
618
35
M20
40
91
36
M20
40
-
SE25/ PE25
863
462
401.8
133
130
628
565
512
620
675
744
35
M20
40
87
36
M20
40
-
Model
Rated
output
Tilting
moment
Axial load
Radial load
Holding
Gear
Tracking precision
Weight
torque (kN.m)
torque (kN.m)
(kN)
(kN)
torque (kN.m)
ratio
(kg)
SE3
0.4
1.1
30
16.6
2
62:1
≤0.2
PE3
0.4
1.1
30
16.6
2
62:1
≤0.08,
ZE3
0.24
1.1
30
16.6
2
62:1
0
SE5
0.6
3
45
22
5.5
62:1
≤0.2
PE5
0.6
3
45
22
5.5
62:1
≤0.08,
ZE5
0.36
3
45
22
5.5
62:1
0
SE7
1.5
13.5
133
53
10.4
73:1
≤0.2
PE7
1.5
13.5
133
53
10.4
73:1
≤0.05,
ZE7
0.6
13.5
133
53
10.4
73:1
0
21
SE9
6.5
33.9
338
135
38.7
61:1
≤0.17
49
PE9
6.5
33.9
338
135
38.7
61:1
≤0.05,
ZE9
3.9
33.9
338
135
38.7
61:1
0
49
SE12
7.5
54.3
475
190
43
78:1
≤0.17
61
PE12
7.5
54.3
475
190
43
78:1
≤0.03,
ZE12
4.5
54.3
475
190
43
78:1
0
SE14
8
67.8
555
222
48
85:1
≤0.17
PE14
8
67.8
555
222
48
85:1
≤0.03,
ZE14
4.8
67.8
555
222
48
85:1
0
SE17
10
135.6
970
390
72.3
102:1
≤0.15
PE17
10
135.6
970
390
72.3
102:1
≤0.03,
SE21
15
203
1598
640
105.8
125:1
≤0.15
PE21
15
203
1598
640
105.8
125:1
≤0.03,
SE25
18
271
2360
945
158.3
150:1
≤0.15
PE25
18
271
2360
945
158.3
150:1
≤0.03,
12
≤0.12,
≤0.15
12
12
20
≤0.12,
≤0.15
20
20
21
≤0.07,
≤0.07,
≤0.05,
≤0.11
21
≤0.09
49
≤0.07
61
61
64
≤0.05,
≤0.07,
≤0.09
64
64
105
≤0.05,
≤0.07,
≤0.09
≤0.05,
≤0.07,
≤0.09
105
149
149
204
≤0.05,
≤0.07,
≤0.09
204
3) Double worm slew drive (S-2/ SE-2 type)
Double-worm slew drive has more rotator in the basic of single-worm slew drive.
External dimensions
Model
L1
L2
L3
H
H1
H2
D1
Mounting hole data
n1
mm
M1
n2
Inner ring
M2
Outer ring
S14-2
338
237.6
302
110
59
11.5
325
23
M16
18
M16
SE14-2
338
237.6
302
110
59
11.5
325
23
M16
18
M16
S17-2
385
275.3
340.5
126
66
7.5
406
20
M16
20
M16
SE17-2
385
275.3
340.5
126
66
7.5
406
20
M16
20
M16
Rated
output
Tilting
moment
Axial load
Radial load
Holding
torque
Gear
Tracking precision
Weight
Model
torque (kN.m)
torque (kN.m)
(kN)
(kN)
(kN.m)
ratio
(kg)
S14-2
12
67.8
555
222
48
85:1
≤0.17
62
SE14-2
12
67.8
555
222
48
85:1
≤0.17
76
S17-2
16.8
135.6
970
390
72.3
102:1
≤0.15
102
SE17-2
16.8
135.6
970
390
72.3
102:1
≤0.15
119
External dimensions
Model
L1
L2
H
D1
D3
D3
D4
Mounting hole data
D5
n1
mm
M1
n2
Inner ring
M2
Outer ring
HSE21-2
487
368
145
525
465
425
584
622
23
M18
24
M16
HSE25-2
511
416
148
628
560
512
685
722
29
M18
30
M16
Rated
output
Tilting
moment
Axial load
Radial load
Holding
torque
Gear
Tracking precision
Weight
Model
torque (kN.m)
torque (kN.m)
(kN)
(kN)
(kN.m)
ratio
(kg)
HSE21-2
43.6
52.3
1058
421
167
82:1
≤0.15
206
HSE25-2
50
60
2360
945
271
94:1
≤0.15
275
4) slewing drive for modular vehicles (HSE type)
External dimensions
Model
L1
L2
L3
H
D1
D2
Mounting hole data
D3
D4
D5
n1
mm
M1
Inner ring
n2
M2
Outer ring
HSE21
487
268
438
145
425
465
584
622
525.5
23
M30
24
M16
HSE25
511
416
486
148
512
560
685
722
628
29
M30
30
M16
Rated
Axial load
Radial load
Holding
torque (kN.m)
torque (kN.m)
(kN)
(kN)
(kN.m)
ratio
HSE21
21.8
26.6
1058
421
167
82:1
≤0.15
186
HSE25
25
30
2360
945
271
94:1
≤0.15
255
Model
output
Tilting
moment
torque
Gear
Tracking precision
Weight
(kg)
5) Worm gear slew drive (WE type)
External dimensions
Model
L1
L2
L3
L4
H1
H2
H3
H4
H5
D1
D2
D3
D4
D5
Mounting hole data
D6
mm
n1
M1
Inner ring
n2
M2
Outer ring
WE9
340
177.5
241.5
170
97
82
12
26
41
260
175
145
222
270
325
15
M16
16
M16
WE14
380
237.5
301.5
190
97
82
12
26
41
380
295
265
342
390
445
18
M16
23
M16
WE17
405
285
349
202.5
97
82
12
23
41
460
365
332
430
479.5
535
20
M16
20
M16
WE21
482.5
350
415
245
120
130
25
45
65
550
465
425
526
584
632
23
M20
24
M20
Model
Rated
output
Tilting
moment
Axial load
Radial load
Holding
torque
Gear
Tracking precision
Weight
torque (kN.m)
torque (kN.m)
(kN)
(kN)
(kN.m)
ratio
(kg)
WE9
8
33.9
550
205
38.7
62:1
≤0.15
48.5
WE14
28.7
203
1598
596
105.8
90:1
≤0.1
169
WE17
12.96
135.6
1110
414
72.3
104:1
≤0.1
90
WE21
10.8
67.8
920
343
48
86:1
≤0.13
68
4. drawing and specification
江阴市华方新能源高科设备有限公司
严富君（销售工程师）
电话：13812568495
传真：0510-86366200
邮箱：[email protected]
网址：www.h-fang.com.cn
电话：13812568495
传真：0510-86366200
Input
Input
电话：13812568495
传真：0510-86366200
电话：13812568495
传真：0510-86366200
Input
电话：13812568495
传真：0510-86366200
Input
Input
电话：13812568495
传真：0510-86366200
电话：13812568495
传真：0510-86366200
Input
Input
电话：13812568495
传真：0510-86366200
Input
Input
电话：13812568495
传真：0510-86366200
电话：13812568495
传真：0510-86366200
电话：13812568495
传真：0510-86366200
电话：13812568495
传真：0510-86366200
电话：13812568495
传真：0510-86366200
电压
Voltage(V)
电流
Current(A)
减速比
Gear Ratio
输出转速
Output Speed(rpm)
额定输出扭矩
Rated Output Torque
24 (H) /30/33
24
＜ 1.2
575
3
24 (H) /77/35
24
＜ 2.8
234
24 (H) /50/100
24
＜ 4.8
12 (H)//30/33
12
＜ 2.4
尺寸 size (mm)
L
D
33 N.m (24 lbf.ft)
194 (269)
60
7.7
35 N.m (26 lbf.ft)
240 (275)
64
329
5
100 N.m (74 lbf.ft)
253 (253)
82
575
3
33 N.m (24 lbf.ft)
194 (269)
60
霍尔参数 Hall Data
霍尔数量 Output Signal
2
工作电压 Operating Voltage
VDC12
信号输出形式 Output Type
电压输出 Voltage Output
电压
Voltage(V)
电流
Current(A)
减速比
Gear Ratio
转速
Speed(rpm)
额定输出扭矩
Rated Output Torque
220(1)/12/60
220
＜ 0.38
50
1.2
60 N.m ( 44 lbf.ft )
380/12/100
380
＜ 0.2
50
1.2
100 N.m ( 74 lbf.ft )
380/15/90
380
＜ 0.2
40
1.5
90 N.m ( 66 lbf.ft )
回转式减速器专业制造商
Professional Slewing Drive Manufacturer
P-23
5. Installation adjustment& attentions in operation for slew drive
1. Slew drive must be installed on a hard horizontal surface, and the bolts of the firm steps must be tightened in case of loosen and
abnormal vibration; remove painting residues, burr and extraneous material to make sure installing datum plane and bracket surface flat.
To prevent local overload of slew drive and ensure its flexible running, mounting bracket shall be eliminated internal stress and done
mechanical treatment after welding processes. Flatness(including horizontal angle deviation) should be controlled in a certain range.
2. The special bolts size for slew drive should be in keeping with the standard GB/T5782-2000 and GB/T5783-2000 of the People’s
Republic of China, the bolts strength grade should reach the national standard GB/T3098.1-2000 regulations of grade 8.8.
(1) washer size should be in keeping with the standard GB/T1230-2006 and standard GB/T123-2006. Spring washer is not used; the
washer should be required quenching and tempering and selected correct strength grade based on the load of slew drive.
(2) Nut size should be in keeping with the standard GB/T6170-2000 and standard GB/T6175-2000 of the People’s Republic of China.
The mechanical properties should be in keeping with the national standard GB/T3098.2-200 regular of the People’s Republic of China.
(3) Tighten bolts should be pre load tightening force according to mainframe design rules, unless there are special provisions, general
tightening force for pre loading should be 70% of bolt yield limit, screw thread is allowed to oil in small quantity when it is tightened.
Bolts clamping length LK≥5d (d stand for the bolt diameter).
Bolts
Threaded
Threade
Clamp
Theoretic
Actual
Clamp
Theoretic
Actual
Clamp
Theoretic
Actual
spec.
effective
area
d
minimu
m area
force
al
predictio
n torque
preload
torque
MA=0.9
force
al
predictio
n torque
preload
torque
MA=0.9
force
al
predictio
n torque
preload
torque
MA=0.9
As(mm 2)
As(mm2 )
Fsp(N)
Msp(Nm)
Msp(Nm)
Fsp(N)
Msp(Nm)
Msp(Nm)
Fsp(N)
Msp(Nm)
Msp(Nm)
M8
36.6
32.8
16500
25
22.4
23200
35
31.5
27900
41
36
M10
58
53.3
26200
49
44
36900
69
62
44300
83
75
M12
84.3
76.2
38300
86
77.5
54000
120
110
64500
145
130
M14
115
105
52500
135
120
74000
190
170
88500
230
210
M16
157
144
73000
210
190
102000
295
265
123000
355
320
M18
192
175
88000
290
260
124000
405
365
148000
485
435
M20
245
225
114000
410
370
160000
580
520
192000
690
620
M22
303
282
141000
550
500
199000
780
700
239000
930
840
M24
353
324
164000
710
640
23000
1000
900
276000
1200
1080
In order to avoid the deviation between the bolt locking force, please pay attention to the following items:
� Oil the screw thread and head in small quantity to ensure to resist the unified friction (adhesives are not used).
� Preload to the bolt including the washer, if necessary, in 3 steps with 30% 80% 100%.
For hydraulic motor, the preload clamping force con not exceed 90% of the finished product.
3. After installation, clear dust and dirt on the slew ring in time, paint the exposed part with antirust paint and adjust power source.
6. Maintenance instructions for slew drive
1. According to JBT2300-1999, slew drive should be oiled in small quantity of lithium base grease before delivery, please check and oil
new grease in the different operating condition before installing.
2. Relubrication intervals mainly depend on the prevailing work and environmental conditions as well as on the version of the slew drive.
The following table can be used for a reference value. Slew drive shall generally be relubricated before and after long inactive periods.
While rotating the slew drive, inject grease into all the cleaned grease nipples consecutively until a bead of fresh grease spills from seal
and the grease fills in the raceway equably.
Working condition
Lubrication intervals
Torrid zone, high humidity, dusty, big temperature difference and Every 50 hours
continuous working
Extreme condition
Every 75 hours
Normal working condition
Every 150 hours
3. It is necessary to clear the sundries on the surface of slew drive away and check whether seal is aged, dissilient, breakage or loose. If
any one of above conditions happens, please replace new seal to prevent sundries getting into raceway and running grease off, then
relubricate grease to avoid corrosion of roller and raceway.
4. Grease types can be determined under actual operating conditions by customer, for example: raceway can be lubricated by 3#,4#
graphite, industry grease, 203# grease, 7002# bearing grease and 2# aluminum base grease and so on. It is necessary to check the
pre-load of bolt to keep enough pre-load after first 100 hours in operating. And this inspection shall be repeated after every 500 hours.
5. After 2000hours in operating, if any bolt looses m,ore than 20% torque, please replace the bolt and two neighbors, if 20% of bolts
loose more than 20%, please replace all the bolts. After 14000 hours in operating, replace all bolts, nuts and washers with new ones.
6. It is necessary to give close attention to operating condition, in case of increasing noise, impact or power suddenly, it should be fixed
until clearing all the faults. If necessary, dismantle the slew drive, clean and check it.
RTR Turntable
Turntables are part for fitting onto trailers and agricultural vehicles to connect the A-frame to the trailer chassis so it can swivel.Their
purpose is to transmit both the axial load, thrust and traction forces. None of their parts is susceptible to wear. Each turntable consists of
two steel rings designed for flange mounting. The raceways are machined so as to ensure that the load transmission is favorable directed
between the antifriction bearing steel balls
that are fitted. An initial filling of grease protects the raceway system.
RTR supply included:
·Standard/ Low-maintenance ·Drilled/ Undrilled
·Primed
The turntables are supplied as either undrilled or drilled bearings with the standard type being filled with lithium-saponified grease and
the low-maintenance type. Every turntable is coated with a primer and can therefore be painted at the same time as the trailer. The primer
is based on a synthetic resin compound.
A
B
C
D
E
F
h
H
d
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
kg
UA1208SB
1208
1195
1160
1174
1070
1046
17
94
22.225
114
UA1110SB
1102
1110
1060
1074
968
945
15
90
22.225
98
UA1015SB
1000
1015
962
976
885
860
14
80
19.05
72
UA895SB
880
895
852
866
778
754
13
80
15.875
60
UA700SB
685
700
657
671
579
563
13
80
15.875
45
A
B
C
D
E
F
h
H
d
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
kg
UA1022SB 1022
1013
980
975
884
861
14.5
85
19.05
85
Spec
Spec
A
B
C
D
E
F
N
H
d1
d2
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
kg
UA1208DB
1195
1208
1160
1175
1079
1042
17
94
22.225
15.875
118
UA1110DB
1102
1110
1060
1074
975
940
15
90
22.225
15.875
100
UA1000DB
1000
1000
964
964
866
834
14
90
17.46
12.7
88
Spec
A
B
C
D
E
F
h
H
d
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
kg
UT850SB
850
850
820
820
706
704
12
60
15.875
50
UT580SB
580
580
550
550
452
430
14
65
15.875
38
A
B
C
D
E
F
d1
d2
Weight
mm
mm
mm
mm
mm
mm
mm mm
mm
mm
kg
UT1100DB 1100
1100
1070
1070
930
930
19
Spec
N
H
Spec
A
B
C
D
E
F
N
mm
mm
mm
mm mm mm
UT1100TB 1100 1100 1070 1070
902
910
84 15.875 15.875
H
114
d1
d2
d3
Weight
mm
mm
mm
kg
Spec
mm mm
25
106 15.875 15.875 15.875
158
A
B
C
D
E
F
h
H
d
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
kg
ZB1050SB
1050
987
1025
880
923
854
10
52
15.875
53
ZB950SB
950
888
925
790
820
752
10
52
15.875
48
ZB850SB
850
787
825
682
723
657
10
52
15.875
41
ZB750SB
750
684
725
579
620
554
10
52
15.875
35
ZB650SB
650
587
625
490
525
465
10
52
15.875
30
ZB500SB
500
437
472
343
379
310
10
52
15.875
20
A
B
C
D
E
F
h
H
d
Weight
mm
mm
mm
mm
mm
mm
mm
mm
mm
kg
520
451
486
336
371
302
12
56
15.875
23
ZA1050SB 1050
981
1015
867
901
832
14
56
15.87
57
Spec
Spec
ZA520SB
For the number not list above, please contact with us.
RTR Gear
Research center
The gear and CNC-controlled equipment institute, including processional, senior engineers and senior technical staffs, demonstrates
independent innovation capabilities of spiral bevel gear. The center offers full of consultation service including design, calculation of
load capability, installation specifications and drawings etc for spiral bevel gear.
Finished project：
1.CNC-controlled spiral bevel gear machine with flinger shaped profile formate milling cutter .
2.CNC-controlled spiral bevel gear hard-face shaving machine of max diameter 2000mm max module 45mm and φ400mm axial
diameter of pinion workpiece box.
3.21 inch to 50 inch cutters with cutter blades.
4.Φ2300mm roller tester with φ400mm axial diameter of pinion workpiece box
On-going project：
1.CNC-controlled spiral bevel gear hard-face shaving machine with max diameter φ2700mm
2.Φ3000mm roll tester with φ500mm axial diameter of pinion workpiece box.
Working areas
1. Large-size face-milling working area （ More
than 10 machines）
1 Max diameter:φ2000mm
○
2 Max module:40mm
○
3 Hardness: HB330
○
4 Production:Over 1000 sets each year
○
2. Grinding working area（Gleason’s grinding machines: 9）
1 Diameter:φ20mm--φ960mm
○
2 Accuracy: AGMA 13(IT4)
○
3 Roughness: Ra0.2
○
4 Production: over 3000 sets each year
○
3. small-size face-milling working area
（Over 20 machines）
1 Diameter: φ20mm--φ800mm
○
2 Module: 2mm--18mm
○
3 Production: Over 5000 sets each year
○
4.Shaving working area （ CNCC- controlled
self-developed machines）
1 Max diameter:φ2000mm
2 Pinion: max
○
○
3 Roughness Ra0.2 ○
4
axial diameterφ400mm ○
Production:over 100 sets each year
5. Heat treatment working area
Material used: 17CrNiMo6、20Cr2Ni4、18Cr2Ni4WA
Inspection
Accuracy inspection
Magnetic particle testing
Roll test
Mechanics performance testing
Nitric acid testing
Metallographic testing
Wenzel measuring center (WGT1600)
Main Product
Our main product is medium and large size spiral bevel gears
Most of the product we produce according to custom drawing and specification.
Shaving Bevel Gear of Hard Face
(Hardness HRC58-62)
Grinding Bevel Gear of Hard Face
(Hardness HRC58-62)
Planetary Reducer
Rotary Table for Oil Field
Applications
Our product widely used in the well rig for oil field, High-speed wire finishing mill, marine propeller, coal mining machine, cement mill,
railway locomotive, large-scale construction machinery, large scale precision reducer and so on.
Cement mill
Oil Field
Large Mining Dump Truck
Army
Mining Machine
High-speed Wire Rolling Mill
Marine
Train
Gears and gear box
1. Spur Gears
A spur gear has a cylindrical pitch surface with teeth that are parallel to the axis. Spur Gears are widely used in kinds of application. We
can do the shaping, hobbing and grinding, the max size we can do is 6000mm.
2. Helical Gears
Helical gears have teeth that are cut at an angle. During the engagement of the teeth, contact begins at one end of the tooth, and then
spreads gradually throughout rotation, until full mesh is achieved. The teeth of the helical gears then gradually exit mesh in the same
manner.RTR max size for helical gears is 2000mm.
3. Worm Gears
A worm gear is used when a large speed reduction ratio is required between crossed axis shafts which do not intersect. A basic helical
gear can be used but the power which can be transmitted is low. A worm drive consists of a large diameter worm wheel with a worm
screw meshing with teeth on the periphery of the worm wheel. RTR max size for worm gears is 2000mm.
4. Spiral Bevel Gears
Spiral bevel gears are used to transmit power between shafts that are at a 90-degree orientation to each other. Spiral bevel gears have
teeth that are curved and oblique.It is used in the oil fields, mining, metallurgy and marine fields.The max size we made is 2000mm.
5. Bevel Gear Sets
Spiral bevel gear sets are most commonly used to transmit power between shafts that are at a right angle or 90 degree orientation to each
other, although almost any shaft angle is possible. With these gears, the gear teeth gradually enter into mesh during rotation until
maximum mesh is achieved, The teeth then leave mesh in the same manner.
6. Gear Shaft
The gear shaft is the axle of the gear, providing the rotation that allows one gear to engage with and turn another. Through the gears and
shafts in an automobile transmission, the engine is able to run at a constant speed, while the auto wheels can be run faster or slower, or
even in reverse, using the same engine rotational direction and speed.
7. Gear Box
Gearbox uses gears and gear trains to provide speed and torque conversions from a rotating power source to another device.
APPLICATION
EXCAVATOR
Wind Turbines
Solar Application
Bottling Technologies
CRANES
SHIP & OFFSHORE
Man Lift
Steel Mill
Water Treatment
Mining
Medical Application
Forest Industry
RTR Engineering
Address:No.2117,Jun’an Building,Xi’an Road,Dalian,China
Post Code:116023
Tel:0086+-411-84618155 Fax:0086-411-84633077
E-mail:[email protected],
Website: www.rtr-slewing.com,

Slewing bearing - RTR Slewing ring

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