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SURE-GRIP BUSHING DIMENSIONS
A1–3
Sure-Grip bushings are designed to transmit the rated torque capacity listed in the table below when the cap screws are tightened as
indicated. The bushings are stocked in all popular bore sizes, including metric bores, within the bore range for a particular bushing.
SURE-GRIP BUSHING
TORQUE RATINGS AND DIMENSIONS
Torque (Note 1) (Note 2)
DIMENSIONS IN INCHES
Cap
Bush. Capacity Max. Max. Bolt Screws
(In.-Lbs.) Bore Bore A B D E F* L Circle Required
QT 1,750 1
1
⁄2 30
1
/4 1.625 2
1
/2 1
7
/8 1
1
/4 22-
1
/4 x 1
JA 1,750 1
1
⁄4 23
5
/16 1.375 2
11
/16
9
/16 11
21
/32 3 - #10 x 1
SH 3,500 1
5
⁄8 36
3
/8 1.871 2
11
/16
7
/8
13
/16 1
1
/4 2
1
/4 3-
1
/4 x 1
3
/8
SDS 5,000 1
15
⁄16 42
7
/16 2.1875 3
3
/16
7
/8
3
/4 1
5
/16 2
11
/16 3-
1
/4 x 1
3
/8
SD 5,000 1
15
⁄16 42
7
/16 2.1875 3
3
/16 1
3
/8 1
1
/4 1
13
/16 2
11
/16 3-
1
/4 x 1
7
/8
SK 7,000 2
1
/2 56
1
/2 2.8125 3
7
/8 1
3
/8 1
1
/4 1
7
/8 3
5
/16 3-
5
/16 x 2
SF 11,000 2
15
/16 63
1
/2 3.125 4
5
/8 1
1
/2 1
1
/4 23
7
/8 3-
3
/8 x 2
E 20,000 3
1
/2 78
3
/4 3.834 6 1
7
/8 1
5
/8 2
5
/8 53-
1
/2 x 2
3
/4
F 40,000 3
15
/16 90
13
/16 4.4375 6
5
/8 2
13
/16 2
1
/2 3
5
/8 5
5
/8 3-
9
/16 x 3
5
/8
J 55,000 4
1
/2 105 1 5.1484 7
1
/4 3
1
/2 3
3
/16 4
1
/2 6
1
/4 3-
5
/8 x 4
1
/2
M 125,000 5
1
/2 130 1
1
/4 6.500 9
1
/8 5
1
/2 5
3
/16 6
3
/4 7
7
/8 4-
3
/4 x 6
3
/4
N 150,000 6 140 1
1
/2 7.000 10 6
5
/8 6
1
/4 8
1
/8 8
1
/2 4-
7
/8 x 8
P 250,000 7 160 1
3
/4 8.250 11
3
/4 7
5
/8 7
1
/4 9
3
/8 10 4 - 1 x 9
1
/2
W 375,000 8
1
/2 200 2 10.437 15 9
3
/8 911
3
/8 12
3
/4 4 - 1
1
/8 x 11
1
/2
S 625,000 10 240 3
1
/4 12.125 17
3
/4 12
1
/2 12 15
3
/4 15 5 - 1
1
/4 x 15
1
/2
* Mating hub length.
1. MAX INCH BORE WITH KEYSEAT.
2. MAX MM BORE WITH STANDARD KEYSEAT.
See pages A1–4 to A1–8 for Bore and Keyseat information and weights.
Bushing Bushings Bushings
QT JA to J inclusive M to S inclusive
w/Setscrew w/Setscrew
Except JA