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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Shaft Couplings
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Step-Up Shaft Adapters
Increase the diameter of your shaft while also making it longer. One side of these adapters clamp onto your shaft; the other side becomes your new larger end so you don’t have to replace the entire shaft. Tighten the clamping screws to secure without marring the shaft. Made of steel for strength, these adapters have a black-oxide finish that adds a layer of rust resistance but should be used in primarily dry environments.
Adapters for keyed shafts have keyways that firmly grip the shaft’s key to eliminate slipping. They handle higher torque than adapters for round shafts.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | Shaft Dia. | Overall Lg. | Shaft Lg. | Bore Dp. | OD | Material | Max. Speed | Max. Torque | Each | |
For Keyed Shafts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 3/4" | 2 3/4" | 1 1/4" | 1 1/4" | 1 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 000000 |
| 5/8" | 7/8" | 3 1/4" | 1 1/2" | 1 3/8" | 1 1/2" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 3/4" | 1" | 4 1/4" | 2 3/8" | 1 5/8" | 1 3/4" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 7/8" | 1 1/8" | 4 3/8" | 2" | 1 7/8" | 2" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 1" | 1 1/4" | 4 3/4" | 2 3/8" | 2" | 2" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 1 1/8" | 1 3/8" | 4 3/4" | 2 3/8" | 2" | 2 1/8" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 000000 |
| 1 1/4" | 1 1/2" | 5" | 2 1/2" | 2" | 2 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 000000 |
For Round Shafts | ||||||||||
| 1/2" | 3/4" | 2 3/4" | 1 1/4" | 1 1/4" | 1 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 5/8" | 7/8" | 3 1/4" | 1 1/2" | 1 3/8" | 1 1/2" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 3/4" | 1" | 4 1/4" | 2" | 1 5/8" | 1 3/4" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 7/8" | 1 1/8" | 4 3/8" | 2" | 1 7/8" | 1 7/8" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 1" | 1 1/4" | 4 3/4" | 2 3/8" | 2" | 2" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 1 1/8" | 1 3/8" | 4 3/4" | 2 3/8" | 2" | 2 1/8" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 1 1/4" | 1 1/2" | 5" | 2 1/2" | 2" | 2 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
Step-Down Shaft Adapters
Reduce the diameter of your shaft while adding length. One side of the adapter is a two-piece coupling that clamps onto your existing shaft; a smaller shaft extends from the other side. Tighten the clamping screws for a firm, even grip that won’t damage shafts. These adapters are black-oxide steel, which is strong and has a coating that temporarily protects it from rust. They are best for dry environments.
Adapters for keyed shafts grip more securely than adapters for round shafts, so they slip less and transmit more torque.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | Shaft Dia. | Overall Lg. | Shaft Lg. | Bore Dp. | OD | Material | Max. Speed | Max. Torque | Each | |
For Keyed Shafts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1/2" | 3 1/2" | 1 1/4" | 1 5/8" | 1 3/4" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 000000 |
| 7/8" | 5/8" | 3 5/8" | 1 1/4" | 1 7/8" | 1 7/8" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 1" | 3/4" | 3 5/8" | 1 1/4" | 2" | 2" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 1 1/8" | 7/8" | 3 7/8" | 1 1/2" | 2" | 2 1/8" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 1 1/4" | 1" | 4 1/2" | 2" | 2" | 2 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 00000 |
| 1 3/8" | 1 1/8" | 5" | 2" | 2 1/4" | 2 3/8" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 000000 |
| 1 1/2" | 1 1/4" | 5 3/8" | 2 3/8" | 2 1/4" | 2 1/2" | Black-Oxide Steel | Not Rated | Not Rated | 0000000 | 000000 |
For Round Shafts | ||||||||||
| 3/4" | 1/2" | 3 1/2" | 1 1/4" | 1 5/8" | 1 3/4" | Black-Oxide Steel | Not Rated | Not Rated | 000000 | 00000 |
| 7/8" | 5/8" | 3 5/8" | 1 1/4" | 1 7/8" | 1 7/8" | Black-Oxide Steel | Not Rated | Not Rated | 000000 | 00000 |
| 1" | 3/4" | 3 5/8" | 1 1/4" | 2" | 2" | Black-Oxide Steel | Not Rated | Not Rated | 000000 | 00000 |
| 1 1/8" | 7/8" | 3 7/8" | 1 1/2" | 2" | 2 1/8" | Black-Oxide Steel | Not Rated | Not Rated | 000000 | 00000 |
| 1 1/4" | 1" | 4 1/2" | 2" | 2" | 2 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 000000 | 00000 |
| 1 3/8" | 1 1/8" | 5" | 2" | 2 1/4" | 2 3/8" | Black-Oxide Steel | Not Rated | Not Rated | 000000 | 00000 |
| 1 1/2" | 1 1/4" | 5 3/8" | 2 3/8" | 2 1/4" | 2 1/2" | Black-Oxide Steel | Not Rated | Not Rated | 000000 | 00000 |