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About Ball and Roller Bearings
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Needle-Roller Bearings
Also known as drawn-cup roller bearings, these are our thinnest roller bearings. The outer ring is drawn out to form a lip that holds the bearing together. Bearings take on the shape of their housing and may be oblong prior to installation.
Open bearings dissipate heat more efficiently than sealed bearings.
Sealed bearings block out dust better than open bearings, but retain more heat.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microinch | Temp. Range, °F | Specifications Met | Each | |
Open | ||||||||||||
| 5/32" | 9/32" | 1/4" | Steel | 280 | 210 | 44,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 000000 |
| 3/16" | 11/32" | 1/4" | Steel | 400 | 305 | 40,000 | Required | 8 | 0° to 240° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1/4" | 7/16" | 1/4" | Steel | 360 | 260 | 35,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1/4" | 7/16" | 7/16" | Steel | 920 | 870 | 35,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 5/16" | 1/2" | 9/16" | Steel | 1,300 | 1,480 | 29,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 3/8" | 9/16" | 5/16" | Steel | 650 | 610 | 25,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 3/8" | 9/16" | 3/8" | Steel | 870 | 890 | 25,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 3/8" | 9/16" | 5/8" | Steel | 1,650 | 2,040 | 25,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 7/16" | 5/8" | 1/2" | Steel | 1,430 | 1,750 | 22,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 1/2" | 11/16" | 5/16" | Steel | 820 | 890 | 19,500 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 000000 | 0000 |
| 1/2" | 11/16" | 5/8" | Steel | 1,950 | 2,760 | 19,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 1/2" | 11/16" | 3/4" | Steel | 2,200 | 3,210 | 19,500 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 9/16" | 3/4" | 1/2" | Steel | 1,700 | 2,420 | 17,600 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 9/16" | 3/4" | 5/8" | Steel | 2,100 | 3,150 | 17,600 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 5/8" | 13/16" | 7/16" | Steel | 1,450 | 2,100 | 16,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 5/8" | 13/16" | 1/2" | Steel | 1,800 | 2,700 | 16,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 5/8" | 13/16" | 3/4" | Steel | 2,700 | 4,330 | 16,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 11/16" | 7/8" | 1/2" | Steel | 1,900 | 2,950 | 15,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 11/16" | 7/8" | 3/4" | Steel | 2,950 | 5,150 | 14,600 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 3/4" | 1" | 3/8" | Steel | 1,600 | 1,860 | 13,100 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 3/4" | 1" | 3/4" | Steel | 3,450 | 4,970 | 13,100 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 7/8" | 1 1/8" | 3/4" | Steel | 3,800 | 6,100 | 11,400 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 0000 |
| 7/8" | 1 1/8" | 1" | Steel | 4,950 | 8,540 | 11,400 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1" | 1 1/4" | 1" | Steel | 5,550 | 10,200 | 10,100 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1 1/8" | 1 3/8" | 1/2" | Steel | 2,900 | 4,540 | 9,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1 1/4" | 1 1/2" | 5/8" | Steel | 3,900 | 6,970 | 8,200 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1 1/4" | 1 1/2" | 1" | Steel | 6,100 | 12,300 | 8,200 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1 5/16" | 1 5/8" | 5/8" | Steel | 4,750 | 7,530 | 7,700 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1 3/8" | 1 5/8" | 1/2" | Steel | 3,050 | 5,330 | 7,500 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1 1/2" | 1 7/8" | 7/8" | Steel | 8,100 | 13,500 | 6,700 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1 1/2" | 1 7/8" | 1" | Steel | 8,650 | 14,800 | 6,700 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
| 1 1/2" | 1 7/8" | 1 1/4" | Steel | 10,600 | 19,300 | 6,700 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 0000000 | 00000 |
| 1 5/8" | 2" | 1 1/4" | Steel | 11,400 | 21,800 | 6,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 00000 |
Sealed—One Side | ||||||||||||
| 3/8" | 9/16" | 3/8" | Steel | 650 | 610 | 15,000 | Lubricated | 8 | 0° to 210° | DIN 281, ISO 76 | 00000000 | 00000 |
| 5/8" | 13/16" | 9/16" | Steel | 1,800 | 2,700 | 9,600 | Lubricated | 8 | 0° to 210° | DIN 281, ISO 76 | 0000000 | 00000 |
| 1 1/2" | 1 7/8" | 1" | Steel | 8,100 | 13,500 | 4,000 | Lubricated | 8 | 0° to 210° | DIN 281, ISO 76 | 00000000 | 00000 |
Sealed—Both Sides | ||||||||||||
| 5/16" | 1/2" | 7/16" | Steel | 650 | 590 | 17,500 | Lubricated | 8 | 0° to 210° | DIN 281, ISO 76 | 00000000 | 00000 |
| 3/8" | 9/16" | 7/16" | Steel | 650 | 610 | 15,000 | Lubricated | 8 | 0° to 210° | DIN 281, ISO 76 | 00000000 | 00000 |
| 5/8" | 13/16" | 5/8" | Steel | 1,800 | 2,700 | 9,600 | Lubricated | 8 | 0° to 210° | DIN 281, ISO 76 | 00000000 | 00000 |