About Ball and Roller Bearings
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One-Way Locking Needle-Roller Bearing Clutches
The needles in these bearings roll freely in one direction, but lock to transmit torque when the rotation of the shaft is reversed. Also known as drawn-cup roller clutches. An arrow on the lip indicates the rotational direction that locks the bearings.
Single-row bearings do not support loads from any direction. To support radial loads, use with our Needle-Roller Bearings.
| For Shaft Dia. | For Housing ID | Wd. | Ring Material | Max. Speed, rpm | Max. Torque, ft.-lbs. | Lubrication | For Shaft Surface Smoothness (Ra), microinch | Temp. Range, °F | Each | |
Single Row | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Acetal Plastic Springs  | ||||||||||
| 1/8" | 9/32" | 1/4" | Steel | 34,000 | 0.2 | Required | 16 | -20° to 200° | 0000000 | 000000 |
Thin-Wall Press-Fit Drill Bushings
Drill holes close together. These bushings have a thinner wall than typical bushings to fit side by side in a fixture plate. Also known as jig bushings, they precisely guide bits and other cutting tools to ensure holes and cuts are consistent from part to part. You can also use them as spacers, shims, and machinery bushings. Made of hardened, ground steel, they resist wear and last for many cycles without needing to be replaced. Since their wall is so thin, these bushings may be slightly oval when you receive them but will conform to the shape of your hole.
Press into place with a manual or hydraulic press. Since these bushings are sized slightly larger than the hole for an extremely tight fit, they’ll stay put permanently. These are ANSI Type P bushings—also known as headless bushings—which means you don’t need to counterbore the hole to mount them flush.
Tolerance | Each | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OD | Lg. | For Drill Bit Size | ID | OD | Lg. | Drill Bushing Type | Material | Hardness | 1-5 | 6-11 | 12-Up | |
0.2188" ID | ||||||||||||
| 9/32" | 1/2" | 7/32" | 0.0001" to 0.0004" | 0.0013" to 0.0016" | -0.01" to 0.01" | P | Steel | Rockwell C61 | 0000000 | 00000 | 00000 | 00000 |