CHUCKS

CHUCKS
taper mounted chucks
CHUCK
MODEL
COOE
NO.
CAP.
TAPERED
MOUNT
USES
KEY
LENGTH
Closed Open
0
lA
2A
6A-2A
6A-33
633C*
633D**
33
33F
3326A
3333C*
33KD***
02002
02009
02035
02065
02067
02068
02069
02050
02051
02052
02053
02054
0- %2"
0-Y4
0- %
0-12
0- 12
0- 12
0- 12
OJT
IJT
2JT
2JT
33 JT
33 JT
33 JT
33 JT .
33 JT
% Str.
33 JT
33 JT
KO
Kl
K2
K3
K3
K3C
K3C
K32
K32
K32
K32C
K32
1%
%4-Yz
%4-Yz
%4-Yz
%4-Yz
%4-Yz
p5!J.S
213!J.S
37!J.s
37!J.s
3zl;32
321hz
33hz
3%2
3Yz
3~2
37!J.s
DIAM.
5%4
11~2 13!J.s
23!J.s pl!J.S
2% p5!J.S
2% p5!J.S
2z~2 P5!J.s
2z~z Po/IS
21~2 113!J.S
21~2 113/1S
22~2 p3!J.S
29!J.s 113/1S
22%2 125132
IVa
With the exception of Models 0 and OB Chucks
which have a minimum capacity of No. 80 drill. all
medium and heavy duty plain bearing chucks and
ball bearing chucks having a nominal capacity of 0
will hold a No. 70 drill.
CHUCK
MODEL
CODE
NO.
CAP.
7
7-1A
30
32
34
3A
36
34KD***
34PD****
3KD***
3PD****
37KD***
37PD****
02015
02016
02025
02040
02075
02086
02100
02076
02077
02088
02089
02105
02106
O-W'
*Equipped
**Equipped
***Equipped
****Equipped
2
with
with
with
with
TAPERED
MOUNT
2 short JT
IJT
0- Y4
2
short JT
O- o/IS
2JT
0-%
O-Yz
6JT
Ys -% 3JT
3/1S-% 3JT
O-Yz
#6 JT
O-Yz
#6 JT
Ys- % #3 JT
Va-% #3 JT
Y4 _13jlS #3 JT
Y4 - 13!J.s #3 JT
USES
KEY
K7
K7
K30
K32
K3
K3
K4
K3
K3
K3
K3
K4
K4
LENGTH
Closed Open
DIAM.
2~2
12%2 P%4
2~2 121132 11%4
25!J.s l Z%2 12%4
31!J.s 2%2 113/1S
31~2 211!J.S 21
!J.s
313!J.s 2% 25!J.s
4I!J.s 3%2 29IIs
311!J.s 215!J.s 21IIs
311lIs 215IIs 21IIs
41IIs 3Ys 20/1S
4I!J.s 3Ys 20/1S
41l;32 31%2 20/1s
41l;32 313132 20/1s
a threaded locking collar which has a 1Y16-20 thd.
a threaded locking collar which has a 1I,4-12 thd .
a positive driving slot.
a pin type positive drive
plain bearing key type chucks
Manufacturers of power tools throughout the world have
standardized on the Jacobs Plain Bearing Key Type Drill
Chuck for original equipment. The reason is simple-no other
drill chuck possesses the accuracy, the grip and the strength
which can only be offered by the basic Jacobs internal construction. This fine chuck is offered for both medium duty or
heavy duty portable, bench or floor type power tools in a
wide range of capacities for either threaded or tapered mounting spindles. It is the world's most widely used drill chuck.
thread mounted
chucks
CHUCK
MODEL
CODE
NO.
CAP.
OB 5/1S -24
IB %-24
IBS
IB %-24
1B 5/1S - 24
31B %-24
31BA %-24
318 Yl -20
28 %-24
68 Yl -20
338 %-24
338 Yl -20
338A Yl -20
338A %- 16
02003
02005
02008
02006
02007
02030
02031
02032
02036
02071
02056
02057
02059
02060
0-%2"
0_3;1S
0- 3;1S
0- Y4
0- Y4
l!Js- %
I;1S-%
I;1S- %
0-%
O- Yl
%4- Yl
%4- Yl
%4- Yl
%4- Yl
LENGTH
THREADED USES
MOUNT
KEY Closed Open
5;1s-24
%-24
short %-24
%-24
5;1s- 24
%-24
%-24 DI G
Yl -20
%-24
Yl-20
%-24
Yl-20
Yl-20 DI G
%- 16 DI G
KO
Kl
Kl
Kl
Kl
K30
K30
K30
K2
K3
K32
K32
K32
K32
lYl
115!J.s
111;1S
11 5;1S
11 5;1S
21%2
21%2
21%2
213;1S
3Yl
3%2
3%2
3%2
3%2
P;1S
11%2
15!J.s
117;32
11%2
115!J.s
115!J.s
115!J.s
23flS
22%2
27;1S
27;1S
27;1S
2'lls
DIAM.
CHUCK
MODEL
CODE
NO.
CAP.
THREADED
MOUNT
USES
KEY
LENGTH
Closed Open
DlAM.
5%4
P;1S
lYs
lo/Js
P;1S
12%4
12%4
12%4
111;1S
11 5;1S
113;1S
113;1S
113;1S
113;1S
78 %-24
78 Yl -20
308 %-24
308 Yl -20
328 Yl -20
328 %-16
328 4%4- 16
348 %- 16
348 4%4- 16
34B %- 16
38 %- 16
368 %- 16
368 %- 16
02017
02018
02027
02028
02041
02042
02043
02078
02079
02080
02091
02101
02102
0- Y41/
0- Y4
0-5!J.s
0_5;1S
0-%
0- %
0- %
O- Yl
O- Yl
O- Yl
Ys - %
3;1S-%
3;1S- %
%-24
Yl-20
%- 24
Yl -20
Yl -20
%-16
4%4- 16
%- 16
4%4- 16
%-16
%- 16
%-16
%- 16
K7
K7
K30
K30
K32
K32
K32
K3
K3
K3
K3
K4
K4
2%2
2%2
21%2
21%2
3l!IS
3l!Js
3
317;32
31%2
31%2
313;1S
4Ys
4Ys
12%2
1%
12%2
12%2
25;1S
25!J.s
25!J.s
2%
2%
2%
2Ya
3%2
3%2
11%4
11%4
12%4
12%4
113;1S
11 o/Js
113flS
21;1S
2l!Js
21;1S
25;1S
29;1s
29;1s
All Jacobs threaded back, plain bearing chucks can be identified by the letter "B" in the model number. These
models can be readily removed from their threaded spindles by following the instructions found on page 15.
Information covering the repair or reconditioning of Jacobs drill chucks is also shown on page 15.
D/C-These models are drilled and countersunk for retaining screws.
3
Jacobs Self-Ejecting Keys
The spring-loaded ejector is designed to prevent the geared key
from remaining in the dri ll chuck
after tightening .
parts
plain bearing key type chucks
The Jacobs plain bearing type chuck can easily be repaired by purchasing
the necessary parts from your nearby Jacobs distributor. The careful controls
exercised in the manufacture of Jacobs chucks guarantee the complete interchangeability of parts. Instructions for repairing Jacobs chucks are shown
on page 15. Your distributor will also be happy to return your worn chucks to
our factory for reconditioning. This service is described on page 15.
KEY
NO.
CODE
NO.
USED ON
CHUCK MODELS
SK-3C
03563
6A, 6AE, 68, 633C,
633D, 34, 348, 34KD,
34PD , 3, 3A, 3AE,
38, 3KD, 3PD, 14N ,
558, 568, 588, 75A
SK-32C
03568
32, 328, 33, 338,
338A, 3326, 33KD ,
33F, 3333C, 11N
SK- K
03570
MC4, MC8, U8,
H8, DC8
CHUCK MODEL
KEY
JAWS & NUT UNIT
SLEEVE
O,OB
lA, lB
2A,2B
3 (17/32 ca p.)
3A, 3AE, 3B,3KD,3PD
6A-33,6AE,6A-2A,6B
633C, 633D
7, 7- lA, 7B
30, 30- lA, 30B, 3lB
32, 32B
33, 33B, 3326, 33F, 33KD
3333C
34, 34B, 34KD, 34PD
36, 36E, 36B
37, 37KD, 37PD
KO
Kl
K2
K3
K3
K3
K3C
K7
K30
K32
K32
K32C
K3
K4
K4
UO
Ul
U2
U3R
U3
U6
U6
U7
U30
U32
U33
U33
U34
U36
U37
SO
Sl
S2
S3
S3
S6
S6
S7
S30
S32
S32
S32
S34
S36
S36
Sle eve s, Jaws and Nuts are always interchangeable between
tapered back and threaded ba c k models. For exampl e 1A and 1 B .
Code numbers for chuck parts are shown on all price sheets.
4
ball bearing super chucks -key type
extra-heavy duty
The Jacobs Ball Bearing Super
Chuck is designed especially for
EXTRA HEAVY DUTY drilling
applications on production drilling machines, radials, jig borers,
millers and lathes. It is also the
world's MOST ACCURATE key
type chuck which further qualifies it for those jobs where close
tolerance drilling is desirable.
The ball thrust bearing reduces
friction in the chuck's closing
mechanism , thus permitting the
operator to apply greater tightening on the twist drill shank.
CHUCK
MODEL
COOE
NO.
CAPACITY
TAPERED
MOUNT
USES
KEY
WEIGHT
Lbs. Ozs.
8YzN
UN
14N
16N
18N
20N
03001
03002
03003
03004
03005
03006
0-14 /1
2 short JT
2JT
3JT
3JT
4JT
5JT
K30
K32
K3
K4
K4
K5
0-9
1-2
2-6
2-15
0-%
O-Yz
Ys-o/s
Ys-%
%-1
~ ~
~
~~
Open
21%2
2%
3%
45!l6
5Ys
5Yz
1%
214
231;32
314
331;32
414
4--4
7-0
ball bearing super chuck
~~
LENGTH
Closed
DIAM.
10/1s
11o/1s
2'lls
2o/s
3Ys4
321;32
parts
e
o~~
CHUCK MODEL
KEY
JAWS & NUT UNIT
SLEEVE
THRUST RACE & BALLS
8Yz N
UN
14N
16N
18N
20N
K30
K32
K3
K4
K4
K5
U8YzN
UUN
U14N
U16N
U18N
U20N
S8YzN
SUN
S14N
S16N
S18N
S20N
T8Yz
T11
T14
T16
T18
T20
Code numbers for chuck parts are shown on all price sheets.
5
lathe headstock
and armature chucks
CHUCK
MODEL
HEADSTOCK
CHUCKS
CODE
NO.
CAP.
TAPERED or
THREADED
MOUNT
USES
KEY
WEIGHT
Lbs. Ozs.
*0- 1%2/1
1-8
K3
2-4
1- 10
K3
*0- 1%2
2- 5
K3
Ys- %
112-8
2- 7
3IIs- %
112-8
K4
3- 10
*Models 55B and 56B can be provided with optional capacity of
55B
56B
58B
59B
ARMATURE
DRIVING CHUCK
CENTER REST
CHUCK
1- 8
1-10
03050
03051
112-8 03052
112-8 03053
CHUCK
MODEL
CODE
NO.
CAP.
75A
100CR
03054
03055
Y4 -%
Y4 -%
TAPERED or
THREADED
MOUNT
USES
KEY
WEIGHT
Lbs. Ozs.
3JT
3JT
K3
Keyless
1- 15
2-3
headstock and center rest chuck
(]t[p ~ ~;
LENGTH
Closed
Open
4
4
3l!Js
3l!Js
3%
4Ys
42V32
5V32
25IIs
2o/J.s
2o/J.s
20/1s
YB-W'
LENGTH
Closed
Open
3% 12%
3% 12%
The Jacobs Armature Chuck Mode
100CR, when mounted by means 0
a tapered arbor in the tailstock of c
lathe, replaces a center. It provide!
an accurate support for turnin~
round work when a center can no
be used . The stationary brass jaw!
provide an excellent bearing sur
face. The jaws can be adjusted tc
the diameter of the work to be sup
ported and then locked.
DIAM.
25IIs
2o/J.s
arts
1m
CHUCK MODEL
KEY
JAWS & NUT UNIT
SLEEVE
55B 1-8
56B 1- 10
58B 112 -8
59B 112-8
75A
100CR
K3
K3
K3
K4
K3
Keyless
U3R
U3R
U3
U36
U75
UlOO
S3
S3
S3
S36
S3
SlOO
6
DIAM.
Jacobs Lathe Headstock Chuck:
are designed to thread directly ontl
lathe spindles . Their capacity range
extreme accuracy, and ease of op
eration allows them to repiac i
costly collet equipment. Their hoi
low construction makes possibl
the chucking of long pieces ex
tending into the lathe spindle.
Jacobs Commutator Kit
Code No. 03056
complete unit designed specifically
holding armature shafts rigidly and c
curately during reconditioning. This
contains a No. 75A Armature Drivi
Chuck and a No. 100 Center Rest Chu
both mounted on No. 2 Morse T'III
Arbors which replace lathe centers. l
Jacobs Commutator Kit will pay for its
on the first few armatures serviced.
(No . 1 Morse Taper Arbors Optional) ,
tap chucks
with Rubber-Flex® collets
These tap chucks are designed for tapping machines and
portable tappers and are offered in a variety of mounts with
these essential features:
Positive Drive-Provided by floating back jaws which always
locate on the square of the tap shank.
Simplified Tap Changing-One quarter turn of the screw and
the nut disengages back jaws. The tap shank sighting hole
presents full view of tap square during change over.
Small Diameter-Means that the weight is close to the centerline, reducing tortional inertia.
Capacity-Each model with one interchangeable RUBBERFLEX collet will hold an unusually wide range of tap sizes.
Accuracy-The RUBBER-FLEX collet centralizes the tap as it
",,, 10
I"~
.,.d,;oo-,,"ood 10""0, CO"" _
I
OVERALL LENGTH
CHUCK
MODEL
CODE
NO.
TAP
CAPACITY
COLLET
NO.
MOUNT
MAX.
CAP.
MIN.
CAP.
400-01
420-01
420-02
421-01
421-02
421-J8
440-02
440-06
440-JIO
441-02
441-06
441-J9
03755
03756
03757
03758
03759
03760
03765
03766
03767
03768
03769
03770
#0-#10
#10-0/16
#10- 5116
J-400
J-420
J-420
J-421
J-421
J-421
J-440
J-440
J-440
J-441
J-441
J-441
1JT
IJT
2 short JT
IJT
2 short JT
W' Sq. Hole
2JT
6JT
W' Sq. Hole
2JT
6JT
12" Sq. Hole
110/16
212
212
212
212
25116
3%2
3%2
3%2
33/32
3%2
121;32
25116
25116
20/16
20/16
2Va
2%
2%
2%
2%
2%
2%
#0-14
#0-14
#0-14
5116-%
0/16-%
0/16-%
#10-12
#10-12
#10-12
3Ya
LARGEST
D1AM.
21;32
P/32
1%2
1%2
1%2
P/32
11%2
11%2
11%2
11%2
11%2
11%2
NUT
BODY
WRENCH WRENCH
FLAT
FLAT
%
3V32
31/32
3V32
3V32
3V32
5
1116
10/16
10/16
10/16
10/16
10/16
12
11;16
11;16
11;16
11;16
none
3V32
3V32
none
3V32
31/32
none
HEX
KEY
SIZE
%2
Ya
Va
Va
Va
YB
%2
%2
%2
%2
%2
%2
ROUND
SHANK
CAPACITY
MIN.
MAX.
SQUARE OR
FLAT
CAPACITY
MIN.
MAX.
.141
.194
.194
.141
.141
.141
.318
.318
.318
.194
.194
.194
.090
.090
.090
.090
.090
.090
.118
.118
.1J8
.U8
.118
.118
.194
.318
.318
.255
.255
.255
.500
.500
.500
.381
.381
.381
The J-420 Collet is interchangeable with the J-421. Thus a J-421 Collet mounted in a 420-01 Chuck changes its range to hold #O-X" Taps.
The same interchangeability is possible between the J-440 Collet and the J441.
Also available is the J-422 Collet (interchangeable with the J-420 and J421) which has a tap capacity of X"-X".
The price of the chuck includes the body wrench, the nut wrench and the hex key.
7
.152
.238
.238
.238
.238
.238
.360
.360
.360
.360
.360
.360
tap chuck
Rubber-Flex® collets and parts
The Jacobs Rubber-Flex ® Collet, "the collet with a range," is entirely different in
design and operation from any collet now in use. Its features include the following
distinct advantages :
1.
Ability of each collet to handle a wide range of shank sizes .
2.
Extreme simplicity of design-one piece construction-with all working
surfaces precision ground after molding.
3.
Tremendous gripping power provided by a high degree of parallelism maintained on all jaw surfaces .
4.
All jaws made from hard ened nickel molybdenum alloy steel to provide
greater resistance to wear.
The body of the collet is made of a synthetic rubber compound which is permanently
bonded to and passes through holes in the hardened steel jaws. Past performance
has proved that this typ e of collet has tremendous life brought about by its resistance to set, and to deterioration normally caused by heat, coolants , and cutting compounds . The hardened and ground collet jaw segments located in a ground conical
bore in the chuck body assure an unusually concentric relationship between the tap and the chuck. Tap runout is thus reduced ~
Uiii/JI.s
to a minimum.
4411 :• •'
Reg . U.S. Pat. Office
~
(!l
~
fElffi~
~
CHUCK MODEL
400-01
420-01
420-02
421-01
421-02
421-J8
440-02
440-06
440-JlO
441-02
441-06
441-J9
~
5mJ @7 rnJ
~ ~
\
BODY
NUT
COLLET
BACK
JAWS
NUT
WRENCH
BODY
WRENCH
HEX
KEY
B40001
B42001
B42002
B42101
B42102
B42IJ8
B44002
B44006
B440JlO
B44102
B44106
B44IJ9
N410
N421
N421
N421
N421
N421
N441
N441
N441
N441
N441
N441
J400
J420
J420
J421
J421
J421
J440
J440
J440
J441
J441
J441
U400
U420
U420
U420
U420
U420
U440
U440
U440
U440
U440
U440
K400N
K420N
K420N
K420N
K420N
K420N
K440N
K440N
K440N
K440N
K440N
K440N
K400B
K420B
K420B
K420B
K420B
none
K420N
K420N
none
K420N
K420N
none
K59
K60
K60
K60
K60
K60
K61
K61
K61
K61
K61
K61
Code numbers for chuck parts are shown on all price sheets.
8
~
impact keyless chuck
with Rubber-Flex® collet
The Jacobs Impact Keyless Chuck is a new type of keyless chuck operating
on an entirely new principle which employs the use of a "Hammer Blow" to
grip or release the twist drill. Both large and small drills are held true and tight
by the tremendous gripping power of the famous Jacobs Rubber-Fle x Collet,
yet the impact device provides a rapid and simple release of the twist drill. The
principal application for this chuck will be on work wh ere frequent tool changes
are necessary, or where drilling torques are high .
The complete chuck consists of two components , the chuck proper and its
mounting adapter. The adapter is provided with a %-24 internal mounting thread
and can be mounted on X" electric and pneumatic drills with a standard %-24
spindle .
Reg.
CODE NO.
CAPACITY
MOUNT
610-61
05100
O-W'
%-24 thd.
impact keyless chuck
0
CHUCK MODEL
niB.
ADAPTER
u.s. Pat . Office
CHUCK
MODEL
COVER
PLATE
CLOCK
SPRING
Ozs.
0- 10
LENGTH
DIAMETER
2Vs
1Y2
parts
0 @ (J ([)I~
SNAP
RING
WEIGHT
Lbs.
IMPACT
SLEEVE
BODY
~ ~ I)
COIL SPRING
THRUST PLUG
COLlET
NOSE
J610
N610
Spring
610-61
AD61O-61
RR610
CP610
CS610
S610
8610
TS610
Plug
T610
model 100-61 die grinder chuck
and
series 100 Rubber-Flex collets
The Model 100-61 Chuck with its Series 100 RubberFlex ® Collets is a compact collet chuck with :X" diameter and 1Ya" length desig ned for holding mounted
points and rotary files on pneumatic and electric die
grinders. The series 100 Collets and the N-100 Nut
are also furnished separately for tools having a collet
seating cone built into the spindle.
MODEL NO.
100-61 chuck (less collets
and wrenches)
COllET NO.
CODE NO.
J·112
J·113
J·114
05012
05013
05014
9
MOUNT
CODE NO.
05005
%·24 thd .
MINIMUM CAP. MAXIMUM CAP.
.094
.146
.198
.146
.198
.250
JAWS
PER COLLET
5
6
8
albrecht keyless chuck
The Albrecht Chuck is "The World's Most
Accurate Keyless Drill Chuck" and is widely
used today on high accuracy drill presses,
jig borers, milling machines and production
drilling equipment. An ideal closureforthose
who desire a keyless type drill chuck and for
those seeking the ultimate in drill chuck
accuracy.
Model 15-JO keyless drill chuck is especially
designed for holding small diameter twist
drills and has a micrometer graduation on its
sleeve to facilitate the changing of the
smallest drills. This model has a minimum
capacity of .008" and a max. capacity of 'I,;'.
I
CHUCK
MODEL NO.
CODE
NO.
15 JO
30 JO
30 Jl
50 Jl
65 Jl
80 J2
100 J33
100 J2
130 J33
130 J2
130 J6
160 J6
05505
05506
05507
05510
05515
05525
05530
05531
05540
05541
05542
05550
CHUCK
CAPACITY
0-Yi6"
O-Ys"
o-Va"
0-3116"
0-1'4"
0- 5116"
0-%"
0-%"
I;32-W'
Ih2-W'
Ih2-W'
Ys-o/s"
LENGTH
MOUNT
DIAMETER
OJT
OJT
1JT
1JT
1JT
2 Short JT
33 JT
2JT
33 JT
2JT
6JT
6JT
~
%"
15116"
15;16"
13116"
111132"
1W'
111Yi6"
111116"
131132"
13I;32"
plh2"
2%2"
JAWS
Open
JAWS
Closed
11%2"
14%4"
14%/'
2%2"
2116"
22%2"
3%2"
3%2"
3o/i6"
3o/i6"
3o/i 6"
3}4"
11%2"
1Ys"
1Ys"
2116"
211116"
31116"
31%2"
31%2"
4Yi6"
4Yi6"
AYi6"
4%2"
WEIGHT
Lbs.·Ozs.
0- 1%
0-3Yz
0-3Yz
0-7
0-10
0-14%
1-5Yz
1-5Yz
2-1~
2-1~
2-1~
2-12
,.
Minimum capacity of Model 15 JO is approximately .008-all other models having a listed minimum capacity of "0" will hold a #80 Drill.
10
LENGTH
CHUCK
MODEL NO.
CODE
NO.
CHUCK
CAPACITY
MOUNT
DIAMETER
JAWS
Open
30 o/1s-24
50 o/1s-24
65 511s-24
65 %-24
65 Yz -20
80 %-24
80 Yz -20
100 Yz -20
100 %- 16
130 Yz-20
130 %- 16
130 %-16
160 %-16
05508
05511
05517
05518
05519
05526
05527
05532
05533
05543
05544
05545
05551
O-Vs/l
O-VIs/l
511s-24
o/1s-24
o/1s-24
%-24
Yz-20
%-24
Yz-20
Yz-20
%-16
Yz-20
%-16
%-16
%-16
10/1S/l
lVI s/l
111132/1
11'132/1
11'132/1
lYz/l
lW'
11111 s/l
11lJl.s/l
131132/1
131132/1
13'132/1
2132/1
14'l's4"
2132/1
O-W'
O-W'
O-W'
0-5I1 s/l
O-o/1s/l
0-%/1
0-%/1
V32-Yz/l
V32- Yz/l
V32-W'
Va-%/I
B
I'
JAWS
(Set 013)
HOODS
BALLS
(Set)
U- 15J
U-30J
U-50J
U-65J
U-80J
U- lOOJ
U- 130J
U- 160J
H- 15J
H-30J
H-50J
H-65J
H-80J
H- lOOJ
H- 130J
H-160J
BB- 15J
BB-30J
BB-50J
BB-65J
BB-80J
BB- lOOJ
BB-130J
BB-160J
*Include Jaw Carrier Spindles
I' •
2~s/l
2~s/l
2~s/l
22%2/1
22%2/1
3%2/1
3%2/1
3'l16/1
3'l1s/l
3'l16/1
3%/1
WEIGHT
Lbs.·Ozs.
JAWS
Closed
lVa/l
0-3Yz
0-7
2~s/l
21lJl.s/l
21lJl.s/l
21lJl.6/1
3lJl.s/l
3lJl.s/l
31%2/1
31%2/1
4lJl.s/l
4lJl.s/l
4lJl.6/1
4%2/1
0-1O~
0-1O~
0-10~
0-14%
0-14%
1-5Yz
1-5Yz
2-1~
2-1~
2-1~
2-12
g g
COLLARS
BODY ASSY:
C-30J
C-50J
C-65J
C-80J
C- 100J
C-130J
C-160J
B-30JO
B-30J1
B-30VJs-24
B-50J 1
B- 50 5I1s-24
B-65J 1
B-65 5I1s-24
B-65%-24
BODY ASSY:
BODY ASSY:
SHELLS
JAW
GUIDES
B-65Yz -20
B-80J2
B-80%-24
B-80Yz 20
B-100J33
B-100J2
B- 100Yz-20
B-100%- 16
B- 130J33
B-130J2
B-130J6
B-130Yz-20
B-130%- 16
B 130%- 16
B-160J6
B 160% - 16
S-30J
S-50J
S-65J
S-80J
S-100J
S- 130J
S- 160J
G-30J
G-50J
G 65J
G 80J
G-100J
G-130J
G-160J
Code numbers for Albrecht chuck parts are shown on all price sheets.
11
I
"MIlls
®
SHANK TAPER
arbors and adapters
TAPER SHANK ARBORS
JACOBS TAPERS
0
AOOOO
#0 Morse
A0100
#1 Morse
A0200
#2 Morse
#3 Morse
**
**
#4 Morse
**
#5 Morse
#7 Brown & Sharpe**
#9 Brown & Sharpe**
#10 Brown & Sharpe**
R-8 (Bridgeport) **
1
**
A0101
A0201
A0301
**
**
**
**
**
**
2*
**
A0102
A0202
A0302
A0402
A0502
A0702
**
**
A0802
3
AOO03
A0103
A0203
A0303
A0403
A0503
A0703
A0903
A1003
A0803
4
**
A0104
A0204
A0304
A0404
A0504
**
A0904
Al004
A0804
5
**
**
A0205
A0305
A0405
A0505
**
**
**
**
E
**
**
A0221
**
**
**
**
**
**
**
6
**
A0106
A0206
A0306
A0406
A0506
A0706
A0906
**
A0806
33
A0033
A0133
A0233
A0333
A0433
**
**
**
**
A0833
OR
BROWN
SHARPE
TAPER
BRIOGEPORT
(R-B)
ACOBS
~
't
STRAIGHT SHANK ARBORS
SHANK OIAMETER
AND LENGTH
0
A4000
**
**
**
**
**
J!2"x2J!2"
%" x 2J!2"
%" x 3"
1" x 3"
lJ!2" x 4"
1%" x 4"
JACOBS
TAPER
JACOBS TAPERS
1
A4001
A4101
**
**
**
**
2*
A4002
A4102
A4202
A4302
**
**
3
A4003
A4103
A4203
A4303
A4503
A4603
4
A4004
A4104
A4204
A4304
A4504
A4604
5
**
**
**
**
**
**
E
**
**
**
**
**
**
6
A4006
A4106
A4206
A4306
**
**
33
A4033
A4133
A4233
A4333
**
**
STRAIGHT
SHANK
MOTOR
SHAFT
HOLE
JACOBS
TAPER
MOTOR SHAFT ADAPTERS
MOTOR SHAFT SIZE
W'Dia_
I
l
JACOBS TAPERS
0
**
**
I 2
I AD2502
3
AD2503
I
I
4
**
I
I
5
**
I
6
I AD2506
I
I
E
**
I
33
I AD2533
THREADED ARBORS
SHANK TAPER
THREAD
PART NO_
#2 Morse
#2 Morse
#2 Morse
%-24
A0261
A0264
A0268
J!2-20
%- 16
JACOBS
TAPER
* Arbors with the No.2 Jacobs Taper wi ll be supplied for use with chucks having a #2 short Jacobs
Taper Mounting hole.
** These arbors are special. Pric es and delivery will
be quoted upon application.
Cod e Numbers for Jacobs arbors and adaptors
are shown on all price sheets.
Always specify Jacobs arbors to secure th e finest
performance from Jacobs drill and tap chucks. They
are precision ground to our master gages and guarantee the finest possible accuracy and fit. Jacobs
arbors feature a hardened tang which prevents
damage by the drift in the knock-out process.
MORSE
TAPER
BROWN &
SHARPE
TAPER
12
NO.
A
B
0
1
2
3
4
5
7
9
10
.3561
.475
.700
.938
1.231
1.748
.725
1.067
1.289
.252
.369
.572
.778
1.020
1.475
_600
.900
1.0446
C
D
E
2
2Ya
29116
33/16
Ya
3f16
4l!J6
53116
Y4
Y4
3
4
511116
%2
Ya
Ya
211;32
20/16
3Ya
3Ys
4Ys
6Ya
3%
4%
61%2
Va
3116
,
LARGE
DIAMETER
SMALL
DIAMETER
LENGTH
OF
TAPER
.25000
.22844
.43750
.59145
.38400
.33341
.65625
.92508
2
.55900
.48764
.87500
.97861
2 short
.54880
.48764
.75000
.97861
3
4
5
6
33
E
.81100
1.12400
1.41300
.67600
.62401
.78860
.74610
1.03720
1.31611
.62409
.56051
.74717
1.21875
1.65625
1.87500
1.00000
1.00000
.79680
.63898
.62886
.62010
.62292
.76194
.62400
JACOBS
TAPER
0
TAPER
PER
FOOT
USED IN CHUCK MODELS
0
lA, 7- 1A, 30- 1A, 250- 1A, 400- 01, 420-01,
421- 01, 650-01
2A, 6A- 2A, lIN, 32, 375, 440- 02, 441.,..02
7, 8Y2 N, 30, 250, 312, 420- 02, 421- 02,
650-S2, 660-S2
3, 3A, 14N, 16N, 36, 75A, 100CR
18N
20N
34, 500, 440-06, 441- 06
6A-33, 633C, 633D, 33, 3333C
3AE, 6AE, 36E
Suggested Method for Mounting
Drill Chucks
When Ordering Arbors
Either of the following method is correcto - Show style and size of the mounting
shank and the model number of the
Jacobs chuck to which the arbor will
be fitted.
•
ON THREADED SPINDLE PORTABLE TOOLS-thread
chuck on the spindle by hand so that the back of the chuck seats
firmly against the mounting surface provided on the portable
tool spindle .
•
ON TAPERED SPINDLE PORTABLE TOOLS-clean both
tapers with carbon tetrachloride and wipe with a paper towel to
free the tapers of all grease and grit. With the chuck jaws completely retracted into the chuck and using a thin piece of wood to
protect the chuck nose, tap the chuck into place on the spindle .
•
ON TAPERED SPINDLE DRILL PRESSES-follow the same
directions as suggested on tapered spindle portable tools.
•
ON TAPERED SHANK ARBORS-clean both tapers as
above. With the jaws retracted into the chuck and with the chuck
nose resting on a wooden bench, strike the tang of the arbor
lightly to seat it into the chuck. Do NOT assemble on an arbor
press as excessive pressure will expand the chuck body and
distort the chuck jaw holes.
Example:
A #2 Morse Taper shank arbor for
#34 Jacobs Chuck
t - Show the style and size of the mounting shank plus the actual Jacobs
taper desired.
Example:
A #2 Morse Taper shank with a
#3 Jacobs taper
( - Simply use the part number listed in
the standard arbor charts shown
above (on opposite page)
Example:
One #A0203 Jacobs Chuck Arbor
13
Rubber·Flex@ collet chucks for
lathes and other machine tools
Spindle Nose Lathe Collet Chuck
Model 96 Key Type Collet Chuck
A lathe collet chuck combining the Jacobs Rubber-Flex ®
Collet, "the collet with a range," and a new principle of impact
tightening to give unequaled gripping power, reduced overhang, ultra accuracy, economy, capacity and durability. Only
eleven rubber-flex collets required to cover a range from '/16" to
1%". Ask your distributor for catalog No. 300.
The model 96 provides another versatile shop tool using
Jacobs Rubber-Flex ® Collets. Combined with a taper shank
arbor or adapter, the Model 96 Chuck can be used on lathe
headstocks, jig 1J0rers, indexing heads, milling machines,
grinders and many others for holding work as well as tool
shanks up to 1%" in diameter. See catalog No. 300.
Model 92 Lever Operated
Model 50 Collet Chuck
A compact, light weight, low priced collet chuck with handwheel operation. Especially designed for Atlas, Clausing, Delta, Logan, Rockwell, Sheldon and South Bend Lathes. Ask
for Catalogue No. 300.
The new Model 92 Production Collet Chuck offers high speed
performance, ease of operation plus the famous accuracy
and grip of the Rubber-Flex collets. Ask your Jacobs distributor for Catalogue No. 300.
14
service and repai r
To disassemble ball bearing super chucks
Extend the jaws to half capacity, press the sleeve off
over the jaw end of the body,
remove the balls from the race
through feeding notch in the
nut, leaving the nut and jaws
free to be removed . The ball
race insert can then be lifted
off over the jaw end of the
body. (see D)
To disassemble plain bearing chucks
Extend the jaws to half capacity, press the sleeve off
over the jaw end of the body
and take out the nut and jaws
(see D)
To remove chucks from
portable tool THREADED SPINDLES . ..
Chucks with threaded backs can be identified by the letter
"B" in the model number. (1 B, 32B, etc.) "B" model chucks may
be removed from a threaded spindle by inserting a chuck key
in a keyhole in the chuck body and striking the key with a sharp
hammer blow in a counterclockwise direction. (see A)
To assemble ball bearing
super chucks
Slip the ball race over the jaw
end of the body, insert the
three jaws in the body in
propersequence,advancethe
jaws to half capacity, apply a
good grade of grease to the
thread on the nut and place it
in position to engage the
jaws; then feed balls into ball
race through loading notch
in the nut, apply good grease
to balls and press on the
sleeve with an arbor press.
(see E)
,
B
To remove chucks from
portable tool TAPERED SPINDLES . ..
D
E
To assemble plain bearing
chucks
Follow procedure for ball
bearing super chucks, omitting ball race assembly .
If the power tool has a tapered spindle, the chuck may be removed from the spindle by inserting chuck removal wedges
between the chuck back and the spindle housing.
•
Jacobs Repair Service
JACOBS CHUCKS can be repaired either by purchasing the
necessary parts from your distributor, or by having your distributor ship chucks to the factory for reprocessing. Only in
this way can chucks be thoroughly overhauled. Bodies will be
reground, jaw holes will be refinished, and new parts including
the key will be provided. In addition, jaws will be internally
ground after assembly in the chuck to insure accuracy. It
should be noted, however, that chucks cannot be repaired
when bodies are not in good condition, i.e., if the taper hole,
key holes, or jaw holes are marred, worn or battered. They
should be replaced. See price list for repair charges.
To remove a chuck from its arbor . ..
Insert wedges between the back of the chuck and the shoulder
of the arbor. (see B) I n case the mounting taper of the arbor
does not provide a shoulder, a cross hole should be drilled
through the neck of the arbor, (see C) and a cross pin inserted.
Then the wedges can be used between the chuck back and the
cross pin. If desired a hole may be drilled through the soft
center portion of the chuck body, (see C) and a pin may then
be used with an arbor press to force the arbor out of the chuck.
Customers desiring to do their own repair work can do so with
a Jacobs Chuck Repair Kit which contains assembly and disassembly rings, wedges and jaw hole reamers. Price available
upon request.
15
The Industrial Supply Distributor has served The Jacobs Manufacturing Company for
over 60 years and has contributed immensely to this company's growth and prestige.
He stocks, catalogues and promotes the sale of our chucks in every industrial community
throughout the United States and Canada.
He reduces your cost of possession, fortifies you against expensive breakdowns and is a
cheerful source of information for thousands of products which he carries for your
convenience.
He is one of the most important institutions in the American marketing structure.
We gratefully acknowledge our debt to the Industrial Supply Distributor and salute him
for his outstanding service to American Industry.
Jecobs t,edeme,k Reg. U.S. Pet. Office
CHUCKS
THE JACOBS MANUFACTURING COMPANY
West Hartford, Connecticut 06110
Clemson, South Carolina 29631
MFGRS. CODE NO. 7814
Catalog No . 200C
Printed in U.S.A.
6-1 -74