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Spline Keys (Bristol Keys)

bristol spline drive

L-wrenches |   kits   | other products  |    Spline Socket information


BRISTOL SPLINE DRIVE

The substantial and effective wrench engagement inherent in the Bristol spline design addresses the problems caused by other systems such as cam-out, socket reaming and rounding of wrenches.

Pioneered by Bristol, the multiple spline drive system is recognized by design engineers as the superior method of transmitting torque because nearly 100% of wrenching force is applied at right angles to the load bearing spline surfaces of the socket.

Other drive systems dissipate a significant amount of force into radial thrust tending to expand the socket rather than tighten the screw.

 
 

bristol spine keys

 

Spline L-Wrenches

GGG-K-275 Type II
 SHORT SERIES
LONG SERIES 
Key SIZE  FLUTES  A  B  PART NO.  A  B  PART NO.
 .033  4  1/4  1-1/4  ALS-.033-4      
 .048  4  1/4  1-1/4  ALS-.048-4  7/16  3-1/16  ALS-.048-4L

.048
 6  5/16  1-1/4  ALS-.048-6  7/16 3-1/16   ALS-.048-6L

.060
 6  1/2  1-5/8  ALS-.060-6  1/2  3-1/8  ALS-.060-6L

.063
 4  1/2  1-5/8  ALS-.063-4  1/2  3-1/8  ALS-.063-4L

.069
 4  1/2  1-3/4  ALS-.069-4  1/2  3-1/8  ALS-.069-4L

.072
 6  1/2  1-3/4  ALS-.072-6  1/2  3-1/8  ALS-.072-6

.076
 4  1/2  1-3/4  ALS-.076-4  1/2  3-1/8  ALS-.076-4L

.096
 6  5/8  1-7/8  ALS-.096-6  5/8  3-1/8  ALS-.096-6L

.111
 4  5/8  2  ALS-.111-4  5/8  3-5/16  ALS-.111-4L

.111
 6  5/8   2  ALS-.111-6  5/8  3-5/16  ALS-.111-6L

.133
 4  3/4  2-1/8  ALS-.133-4  3/4  3-9/16  ALS-.133-4L

.133
 6  3/4  2-1/8  ALS-.133-6  3/4  3-9/16  ALS-.133-6L

.145
 6  3/4  2-1/4  ALS-.145-6  314  3-3/4  ALS-.145-6L
.168  6  3/4  2-3/8  ALS-.168-6  3/4  3-15/16  ALS-.168-6L

.183
 6  7/8  2-1/2  ALS-.183-6  7/8  4-1/8  ALS-.183-6L

.216
 6  15/16  2-3/4  ALS-.216-6  15/16  4-1/2  ALS-.216-6L

.251
 6  1  3  ALS-.251-6  1  4-7/8  ALS-.251-6L

.291
 6  1-1/8  3-1/4  ALS-.291-6  1-1/8  5-1/4  ALS-.291-6L

.372
 6  1-1/4  3-3/4  ALS-.372-6  1-1/4  6  ALS-.372-6L

.454
  6  1-3/8  4-1/4  ALS-.454-6  1-3/8  6-3/4  ALS-.454-6L

.595
 6  1-5/8  5-1/4  ALS-.595-6  1-518  8-1/4  ALS-.595-6L

 

 

 

Spline L-Key Kits

 Part Number  Description
 

ALS-SS-508

9 short arm keys: S-033-4, S-048-4, S-048-6, S-060-6,
S-069-4, S-072-6, S-076-4, S-096-6, S-111-6
 ALS-SL-607 7 long arm keys: S-096-6L, S-111-6L, S-133-6L,
S-145-6L, S-168-6L, S-183-6L, S-216-6L

 

 
 

Other Spline Products

bristol tools


 
 

the following is for information only:

Hexagon/Spline Socket Sizes


Hex and Spline DWG

Nominal

Size
Basic
Screw
Diameter
J M T
Hexagon
Socket
Size
Spline
Socket
Size
Min Key Engagement
to Develop
Functional Capability
of Key
Hex
Socket
TH MIN
Spline
Socket
TS MIN
Nom Nom
#0 0.0600 0.028 0.033 0.050 0.026
#1 0.0730 0.028 0.033 0.060 0.035
#2 0.0860 0.035 0.048 0.060 0.040
#3 0.0990 0.050 0.048 0.070 0.040
#4 0.1120 0.050 0.060 0.070 0.045
#5 0.1250 0.062 0.072 0.080 0.055
#6 0.1380 0.062 0.072 0.080 0.055
#8 0.1640 0.078 0.096 0.090 0.080
#10 0.1900 0.094 0.111 0.100 0.080
1/4 0.2500 0.125 0.145 0.125 0.125
5/16 0.3125 0.156 0.183 0.156 0.156
3/8 0.3750 0.188 0.216 0.188 0.188
7/16 0.4375 0.219 0.251 0.219 0.219
1/2 0.5000 0.250 0.291 0.250 0.250
5/8 0.6250 0.312 0.372 0.312 0.312
3/4 0.7500 0.375 0.454 0.375 0.375
7/8 0.8750 0.500 0.595 0.500 0.500
1 1.0000 0.562 - 0.562 -
1 1/8 1.125 0.562 - 0.562 -
1 1/4 1.2500 0.625 - 0.625 -


the following is for information only:

Spline Socket Specifications


Spline Socket DWG

Normal
Socket
and
Key
Size
Number
of
Teeth
M N P
Socket Major
Diameter
Socket Minor
Diameter
Width of
Tooth
Max Min Max Min Max Min
0.033 4 0.0350 0.0340 0.0260 0.0255 0.0120 0.0115
0.048 6 0.050 0.049 0.041 0.040 0.011 0.010
0.060 6 0.062 0.061 0.051 0.050 0.014 0.013
0.072 6 0.074 0.073 0.064 0.063 0.016 0.015
0.096 6 0.098 0.097 0.082 0.080 0.022 0.021
0.111 6 0.115 0.113 0.098 0.096 0.025 0.023
0.133 6 0.137 0.135 0.118 0.116 0.030 0.028
0.145 6 0.149 0.147 0.128 0.126 0.032 0.030
0.168 6 0.173 0.171 0.150 0.147 0.036 0.033
0.183 6 0.188 0.186 0.163 0.161 0.039 0.037
0.216 6 0.221 0.219 0.190 0.188 0.050 0.048
0.251 6 0.256 0.254 0.221 0.219 0.060 0.058
  • Applicable socket depths are specified in the dimensional table and notes for the respective screw types.
  • Where spline sockets are chamfered, the depth of chamfer shall not exceed 10% of the nominal socket size for sizes up to and including 0.60 in., and 7.5% for larger sizes.

 

April 2022, March 2017, April 2011 CSS

The descriptions, illustrations, specifications, dimensions, and part numbers are subject to change without notice.

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