"QD" Bushings
Catalog Index Bored to fit most popular shaft and keyway sizes. For quick detatchment
of the "QD" Sprocket. Use our weld-on "QD"Adapters.

Bushings

Dimensions & Prices

  Dimensions     Stock Bore Range  
Bushing List Price A B D E F* G** L Bolt

Circle

 Number of

Capscrews

and Size

 Minimum

Bore

 Maximum

Bore

Std.Key

 Maximum

Bore

Shallow Key

 Weight

LBS.
JA 10.90 5/16 1.375 2 11/16 5/8 1/8 1 1.665 3 10x24 1/2 1 1-1/4 .5
SH 14.90 3/8 1.871 2-11/16 7/8 13/16 1/8 1-1/4 2-1/4 3 1/4x1-3/8 1/2 1-1/4 1-5/8 1.2
SDS 17.30 7/16 2.187 3-3/16 7/8 3/4 1/8 1-5/16 2-11/16 3 1/4x1-3/8 1/2 1-9/16 2 1.7
SK 26.80 1/2 2.812 3-7/8 1-3/8 1-1/4 1/8 1-7/8 3-5/16 3 5/16x2 1/2 2 2-5/8 2.4
SF 33.00 1/2 3.125 4-5/8 1-1/2 4-5/8 1/8 2 3-7/8 3 3/8x2 1/2 2-1/4 2-15/16 4
E 69.20 3/4 3.834 6 1-7/8 6 1/8 2-5/8 5 3 1/2x2-1/2 7/8 2-3/4 3-1/2 10.5
F 124.00 13/16 4.437 6-5/8 2-13/16 2-1/2 3/16 3-5/8 5-5/8 3 9/16x3-1/2 1 3-1/4 3-15/16 15
J 154.00 1 5.148 7-1/4 3-1/2 3-3/16 3/16 4-1/2 6-1/4 3 5/8x4-1/2 1-7/16 3-5/8 4-7/16 23
M 308.00 1-1/4 6.500 9 5-1/2 5-3/16 3/16 6-3/4 7-7/8 4 3/4x6-3/4 2 4-11/16 5-1/2 55
N 540.00 1-1/4 7.000 10 6-5/8 6-1/4 1/4 8-1/8 8-1/2 4 7/8x8 2-1/2 5 5-7/8 73
P 810.00 1-3/4 8.250 11-3/4 7-5/8 7-1/4 1/4 9-3/8 10 4 1x9-1/2 2-15/16 5-11/16 7 120
W 1440.00 2 10.437 15 9-3/8 9 1/4 11-3/8 12-3/4 4 1-1/8x11 4-7/16 7 8-1/2 250
S 3400.00 3-1/4 12.125 17-3/4 12-1/2 12 3/8 15-3/4 15 5 1-1/4x15-1/2 6 8-1/4 10 400

F* is length of mating hub. G** is gap between "QD" bushing and mating hub. "S" bushing is Made To Order. All dimensions in Inches. All weights are approximate.

The taper-bored "QD(R)" sprocket easily fits over the tapered hub and tightening of the cap screws produces a tight press fit on the shaft. The sprocket is easily removed from the hub by using the pull-up bolts as jack screws in the holes tapped in the rim of the sprocket. All hubs "JA" through "J" are drilled for REVERSE MOUNTING.

Bushing Bore sizes Keyway
JA 3/8 - 9/16 NONE
5/8 - 1 STANDARD
1-1/16 - 1-3/16 1/4 X 1/16
1-1/4 1/4 X 1/32
SH 1/2 - 1-1/4 STANDARD
1-5/16 - 1-3/8 3/8 X 1/8
1-7/16 - 1-1/2 3/8 X 1/16
1-9/16 - 1-5/8 3/8 X 1/32
SDS 1/2 - 2 STANDARD
1-5/8 - 1-3/4 3/8 X 1/8
1-13/16 - 1-15/16 1/2 X 1/16
2 1/2 X 1/32
SK 1/2 - 2-1/4 STANDARD
2-1/16 - 2-1/4 1/2 X 1/8
2-5/16 - 2-1/2 5/8 X 1/16
2-9/16 - 2-5/8 5/8 X 1/32
SF 1/2 - 2-1/4 STANDARD
2-5/16 - 2-1/2 5/8 X 3/16
2-9/16 - 2-3/4 5/8 X 1/16
2-13/16 - 2-7/8 3/4 X 1/16
2-15/16 3/4 X 1/32
E 7/8 - 2-3/4 STANDARD
2-13/16 - 3-1/4 3/4 X 1/8
3-5/16 - 3-1/2 7/8 X 1/16
F 1 - 3-1/4 STANDARD
3-5/16 - 3-3/4 7/8 X 3/16
3-13/16 - 3-7/8 1 X 1/8
3-15/16 1 X 1/16
J 1-7/16 - 3-5/8 STANDARD
3-11/16 - 3-3/4 7/8 X 3-16
3-13/16 - 4-7/16 1 X 1/8
M 2 - 4-11/16 STANDARD
4-3/4 - 5-1/4 1-1/4 X 1/4
5-5/16 - 5-1/2 1-1/4 X 1/8
N 2-1/2 - 5 STANDARD
5-1/16 - 5-1/2 1-1/4 X 1/4
5-9/16 - 5-7/8 1-1/2 X 1/4
P 2-15/16 - 5-11/16 STANDARD
5-3/4 - 6-1/2 1-1/2 X 1/4
6-9/16 - 7 1-3/4 X 1/4
W 4-7/16 - 7 STANDARD
7-1/16 - 7-1/2 1-3/4 X 3/8
7-9/16 - 8-1/2 2 X 5/16
S

MADE TO ORDER

 

Standard Keyways and Keystock Dimensions
Bores Keyway Keystock
1/2 - 9/16 1/8x1/16 1/8x1/8
5/8 - 7/8 3/16x3/32 3/16x3/16
15/16 - 1-1/4 1/4x1/8 1/4x1/4
1-5/16 - 1-3/4 3/8x3/16 3/8x3/8
1-13/16 - 2-1/4 1/2x1/4 1/2x1/2
2-5/16 - 2-3/4 5/8x5/16 5/8x5/8
2-13/16 - 3-1/4 3/4x3/8 3/4x3/4
3-5/16 - 3-3/4 7/8x7/16 7/8x7/8
3-13/16 - 4-1/2 1x1/2 1x1
4-9/16 - 5-1/2 1-1/4x5/8 1-1/4x1-1/4
5-9/16 - 6-1/2 1-1/2x3/4 1-1/2x1-1/2
6-9/16 - 7-1/2 1-3/4x5/8 1-3/4x1-1/4
7-9/16 - 9 2x11/16 2x1-3/8
Shallow Keyway Dimensions
Keyway Keystock
3/8x1/16 3/8x1/4
3/8x1/8 3/8x5/16
1/2x1/32 1/2x9/32
1/2x1/16 1/2x5/16
1/2x1/8 1/2x3/8
5/8x1/16 5/8x3/8
5/8x3/16 5/8x1/2
3/4x1/8 3/4x1/2
7/8x1/16 7/8x1/2
7/8x3/16 7/8x5/8
1x1/16 1x9/16
1x1/8 1x5/8
1-1/4x1/8 1-1/4x3/4
1-1/4x1/4 1-1/4x7/8
1-1/2x1/4 1-1/2x1
1-3/4x1/8 1-3/4x3/4
1-3/4x3/8 1-3/4x1
2x5/16 2x1

is a registered trademark of and is used under license from Emerson Electric Company.

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