About Shaft Collars
Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.
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Bearing Retaining Locknuts
With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions.
When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
All carbon steel locknuts are strong and resist wear, though they don’t stand up to corrosion as well as stainless steel locknuts.
For technical drawings and 3-D models, click on a part number.
Thread | Carbon Steel | ||||||
|---|---|---|---|---|---|---|---|
Size | Spacing | OD | Wd. | Insert Max. Temp., °F | Specifications Met | Each | |
Chamfered Face | |||||||
| 3.527"-12 | Extra Fine | 4 21/32" | 25/32" | 160° | ANSI/ABMA 8.2 | 00000000 | 000000 |
Bearing Retaining Nuts
Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket.
Chamfered-face retaining nuts weigh less and produce less heat than stepped-face nuts.
Carbon steel retaining nuts are strong and resist wear.
303 stainless steel retaining nuts resist corrosion better than steel. They also withstand washdowns and chemicals.
For technical drawings and 3-D models, click on a part number.
Nuts | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Thread | Optional Washers | ||||||||
| Size | Spacing | OD | Wd. | Specifications Met | For Lock Washer Specifications Met | Each | Each | ||
Carbon Steel | |||||||||
Chamfered Face | |||||||||
| 4.325"-12 | Extra Fine | 5 23/32" | 25/32" | ANSI/ABMA 8.2 | ANSI/ABMA 8.2 | 00000000 | 000000 | 000000000 | 000000 |
303 Stainless Steel | |||||||||
Chamfered Face | |||||||||
| 4.325"-12 | Extra Fine | 5 23/32" | 25/32" | ANSI/ABMA 8.2 | ANSI/ABMA 8.2 | 0000000 | 000000 | 000000000 | 000000 |