Bushings
Dimensions& Prices
| Dimensions | Stock Bore Range | |||||||||||||
| Bushing | List Price | A | B | D | E | F* | G** | L | BoltCircle | Number ofCapscrews
and Size |
MinimumBore | MaximumBore
Std.Key |
MaximumBore
Shallow Key |
WeightLBS. |
| JA | 10.90 | 5/16 | 1.375 | 2 | 11/16 | 5/8 | 1/8 | 1 | 1.665 | 3 10×24 | 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 1/4×1-3/8 | 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 1/4×1-3/8 | 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 5/16×2 | 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 3/8×2 | 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 1/2×2-1/2 | 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 9/16×3-1/2 | 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 5/8×4-1/2 | 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 3/4×6-3/4 | 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 7/8×8 | 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 1×9-1/2 | 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 1-1/8×11 | 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 1-1/4×15-1/2 | 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 | 1/8×1/16 | 1/8×1/8 |
| 5/8 – 7/8 | 3/16×3/32 | 3/16×3/16 |
| 15/16 – 1-1/4 | 1/4×1/8 | 1/4×1/4 |
| 1-5/16 – 1-3/4 | 3/8×3/16 | 3/8×3/8 |
| 1-13/16 – 2-1/4 | 1/2×1/4 | 1/2×1/2 |
| 2-5/16 – 2-3/4 | 5/8×5/16 | 5/8×5/8 |
| 2-13/16 – 3-1/4 | 3/4×3/8 | 3/4×3/4 |
| 3-5/16 – 3-3/4 | 7/8×7/16 | 7/8×7/8 |
| 3-13/16 – 4-1/2 | 1×1/2 | 1×1 |
| 4-9/16 – 5-1/2 | 1-1/4×5/8 | 1-1/4×1-1/4 |
| 5-9/16 – 6-1/2 | 1-1/2×3/4 | 1-1/2×1-1/2 |
| 6-9/16 – 7-1/2 | 1-3/4×5/8 | 1-3/4×1-1/4 |
| 7-9/16 – 9 | 2×11/16 | 2×1-3/8 |
| Shallow Keyway Dimensions | |
| Keyway | Keystock |
| 3/8×1/16 | 3/8×1/4 |
| 3/8×1/8 | 3/8×5/16 |
| 1/2×1/32 | 1/2×9/32 |
| 1/2×1/16 | 1/2×5/16 |
| 1/2×1/8 | 1/2×3/8 |
| 5/8×1/16 | 5/8×3/8 |
| 5/8×3/16 | 5/8×1/2 |
| 3/4×1/8 | 3/4×1/2 |
| 7/8×1/16 | 7/8×1/2 |
| 7/8×3/16 | 7/8×5/8 |
| 1×1/16 | 1×9/16 |
| 1×1/8 | 1×5/8 |
| 1-1/4×1/8 | 1-1/4×3/4 |
| 1-1/4×1/4 | 1-1/4×7/8 |
| 1-1/2×1/4 | 1-1/2×1 |
| 1-3/4×1/8 | 1-3/4×3/4 |
| 1-3/4×3/8 | 1-3/4×1 |
| 2×5/16 | 2×1 |
is a registered trademark of and is used under license from Emerson Electric Company.