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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About Ball and Roller Bearings
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Ball Bearings
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
R6 | 3/8" | 7/8" | 7/32" | Steel | 740 | 310 | 37,000 | Lubricated | -65° to 275° | ABEC-1 | 000000000 | 00000 |
Permanently Lubricated Ball Bearings
A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. Because it's solid, the lubricant blocks out water and dust, extending the life of the bearing.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Ball Bearings
Bearings are 440C stainless steel for good corrosion resistance.
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
R6 | 3/8" | 7/8" | 7/32" | 440C Stainless Steel | 590 | 300 | 38,000 | Lubricated | -40° to 240° | ABEC-1 | 0000000 | 000000 |
Permanently Lubricated Stainless Steel Ball Bearings
A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. The solid lubricant blocks out water and dust, extending the life of the bearing.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
R4A | 1/4" | 3/4" | 7/32" | 440C Stainless Steel | 405 | 198 | 46,000 | Lubricated | -10° to 200° | ABEC-1 | 000000 | 000000 |
R6 | 3/8" | 7/8" | 7/32" | 440C Stainless Steel | 460 | 310 | 19,000 | Lubricated | -10° to 200° | ABEC-1 | 000000 | 00000 |
Food Industry Permanently Lubricated Stainless Steel Ball Bearings
Good for applications with incidental food contact, these 440C stainless steel bearings have a food-grade, solid polymer lubricant between the balls and ring that eliminates the need for additional lubrication. The solid lubricant blocks out water and dust, extending the life of the bearing.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Specifications Met | Each | |
Open | |||||||||||||
R4A | 1/4" | 3/4" | 7/32" | 440C Stainless Steel | 440 | 160 | 24,000 | Lubricated | -40° to 200° | ABEC-1 | FDA Compliant 21 CFR 178.3570 | 000000 | 000000 |
R6 | 3/8" | 7/8" | 7/32" | 440C Stainless Steel | 630 | 250 | 19,000 | Lubricated | -20° to 210° | ABEC-1 | FDA Compliant 21 CFR 178.3570 | 000000 | 00000 |
Ultra-Corrosion-Resistant Stainless Steel Ball Bearings
These 316 stainless steel bearings are more corrosion resistant than our other stainless steel bearings, but they have a lower load capacity.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
R4A | 1/4" | 3/4" | 7/32" | 316 Stainless Steel | 75 | 50 | 2,300 | Required | -40° to 140° | Not Rated | 0000000 | 000000 |
R6 | 3/8" | 7/8" | 7/32" | 316 Stainless Steel | 120 | 95 | 1,600 | Required | -40° to 140° | Not Rated | 0000000 | 00000 |
Plastic Ball Bearings
These acetal bearings have good all-around corrosion and chemical resistance.
316 stainless steel balls have excellent corrosion resistance.
Glass balls have even more corrosion resistance than stainless steel balls.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
316 Stainless Steel Ball | ||||||||||||
Open | ||||||||||||
R6 | 3/8" | 7/8" | 7/32" | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
Glass Ball | ||||||||||||
Open | ||||||||||||
R6 | 3/8" | 7/8" | 7/32" | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
Water-Resistant Plastic Ball Bearings
Made of PVDF, these bearings resist moisture absorption, so they won’t warp in underwater applications. They also have excellent chemical and corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | 316 Stainless Steel Ball | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
R6 | 3/8" | 7/8" | 7/32" | PVDF Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 000000 |
Lubrication-Free Plastic Flanged Ball Bearings
Install these acetal bearings in caustic environments and where lubrication can’t be used. They have good all-around corrosion and chemical resistance. The flange ensures proper positioning inside a tube or housing.
For technical drawings and 3-D models, click on a part number.
Flange | Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | OD | Thick. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||||
R6 | 3/8" | 7/8" | 7/32" | 0.965" | 0.06" | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 000000 | 000000 |
High-Temperature Ball Bearings
Made with either PEEK or graphite, these ball bearings work in applications that are too hot for most other ball bearings.
PEEK bearings handle temperatures almost twice as high as that of our other plastic ball bearings. They also have good chemical resistance and excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
PEEK Plastic Cage—316 Stainless Steel Ball | ||||||||||||
R4A | 1/4" | 3/4" | 7/32" | PEEK Plastic | 30 | 20 | 2,800 | Not Required | -40° to 330° | Not Rated | 0000000 | 000000 |
R6 | 3/8" | 7/8" | 7/32" | PEEK Plastic | 50 | 35 | 1,900 | Not Required | -40° to 330° | Not Rated | 0000000 | 00000 |
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 | |||||||||||
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Thread | Optional Washers | Spanner Sockets | |||||||||
Size | Spacing | OD | Wd. | Specifications Met | For Lock Washer Specifications Met | Each | Each | Each | |||
Carbon Steel | |||||||||||
Chamfered Face | |||||||||||
0.391"-32 | Extra Fine | 3/4" | 7/32" | ANSI/ABMA 8.2 | ANSI/ABMA 8.2 | 00000000 | 00000 | 000000000 | 00000 | 00000000 | 0000000 |
303 Stainless Steel | |||||||||||
Chamfered Face | |||||||||||
0.391"-32 | Extra Fine | 3/4" | 7/32" | ANSI/ABMA 8.2 | ANSI/ABMA 8.2 | 0000000 | 00000 | 000000000 | 0000 | 00000000 | 000000 |