About Ball and Roller Bearings
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One-Way Locking Needle-Roller Bearing Clutches
![](/prerenderstable/mvPRE/contents/gfx/imagecache/248/2489k14p2-d03c-digital@halfx_637051195719981151.png?ver=imagenotfound)
Single Row
![](/prerenderstable/mvPRE/contents/gfx/imagecache/155/1553n25p2-d03c-digital@halfx_637051292777211015.png?ver=imagenotfound)
Triple Row
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.
Triple-row bearings support radial loads.
Bearings with 301 stainless steel springs handle higher temperatures than bearings with acetal springs.
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 | 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 |
1/4" | 7/16" | 1/2" | Steel | __ | __ | 20,000 | 1.5 | Required | 16 | -20° to 200° | 0000000 | 00000 |
3/8" | 5/8" | 1/2" | Steel | __ | __ | 18,000 | 4 | Required | 16 | -20° to 200° | 0000000 | 00000 |
1/2" | 3/4" | 1/2" | Steel | __ | __ | 17,000 | 6.5 | Required | 16 | -20° to 200° | 0000000 | 00000 |
5/8" | 7/8" | 5/8" | Steel | __ | __ | 14,000 | 12 | Required | 16 | -20° to 200° | 000000 | 00000 |
3/4" | 1" | 5/8" | Steel | __ | __ | 12,000 | 17 | Required | 16 | -20° to 200° | 000000 | 00000 |
1" | 1 5/16" | 5/8" | Steel | __ | __ | 8,700 | 35 | Required | 16 | -20° to 200° | 000000 | 00000 |
301 Stainless Steel Springs | ||||||||||||
1/4" | 7/16" | 1/2" | Steel | __ | __ | 20,000 | 1.5 | Required | 16 | -20° to 250° | 0000000 | 00000 |
3/8" | 5/8" | 1/2" | Steel | __ | __ | 18,000 | 4 | Required | 16 | -20° to 250° | 0000000 | 00000 |
1/2" | 3/4" | 1/2" | Steel | __ | __ | 17,000 | 6.5 | Required | 16 | -20° to 250° | 0000000 | 00000 |
5/8" | 7/8" | 5/8" | Steel | __ | __ | 14,000 | 12 | Required | 16 | -20° to 250° | 0000000 | 00000 |
3/4" | 1" | 5/8" | Steel | __ | __ | 12,000 | 17 | Required | 16 | -20° to 250° | 0000000 | 00000 |
1" | 1 5/16" | 5/8" | Steel | __ | __ | 8,700 | 35 | Required | 16 | -20° to 250° | 0000000 | 00000 |
Steel Springs | ||||||||||||
6mm | 10mm | 12mm | Steel | __ | __ | 23,000 | 1.3 | Required | 16 | 10° to 150° | 0000000 | 00000 |
8mm | 12mm | 12mm | Steel | __ | __ | 17,000 | 2.3 | Required | 16 | 10° to 150° | 0000000 | 00000 |
10mm | 14mm | 12mm | Steel | __ | __ | 14,000 | 3.9 | Required | 16 | 10° to 150° | 0000000 | 00000 |
12mm | 18mm | 16mm | Steel | __ | __ | 11,000 | 9 | Required | 16 | 10° to 150° | 0000000 | 00000 |
14mm | 20mm | 16mm | Steel | __ | __ | 9,500 | 12 | Required | 16 | 10° to 150° | 0000000 | 00000 |
16mm | 22mm | 16mm | Steel | __ | __ | 8,500 | 15 | Required | 16 | 10° to 150° | 0000000 | 00000 |
18mm | 24mm | 16mm | Steel | __ | __ | 7,500 | 17 | Required | 16 | 10° to 150° | 0000000 | 00000 |
20mm | 26mm | 16mm | Steel | __ | __ | 7,000 | 21 | Required | 16 | 10° to 150° | 0000000 | 00000 |
25mm | 32mm | 20mm | Steel | __ | __ | 5,500 | 45 | Required | 16 | 10° to 150° | 0000000 | 00000 |
30mm | 37mm | 20mm | Steel | __ | __ | 4,500 | 65 | Required | 16 | 10° to 150° | 0000000 | 00000 |
35mm | 42mm | 20mm | Steel | __ | __ | 3,900 | 85 | Required | 16 | 10° to 150° | 0000000 | 00000 |
Triple Row | ||||||||||||
301 Stainless Steel Springs | ||||||||||||
3/8" | 5/8" | 7/8" | Steel | 1,350 | 1,100 | 18,000 | 4 | Required | 16 | -20° to 250° | 0000000 | 00000 |
1/2" | 3/4" | 7/8" | Steel | 1,600 | 1,450 | 17,000 | 6.5 | Required | 16 | -20° to 250° | 0000000 | 00000 |
5/8" | 7/8" | 1" | Steel | 1,800 | 1,800 | 14,000 | 12 | Required | 16 | -20° to 250° | 0000000 | 00000 |
3/4" | 1" | 1" | Steel | 2,000 | 2,200 | 12,000 | 17 | Required | 16 | -20° to 250° | 0000000 | 00000 |
1" | 1 5/16" | 1.063" | Steel | 3,450 | 3,950 | 8,700 | 35 | Required | 16 | -20° to 250° | 0000000 | 00000 |
8mm | 14mm | 20mm | Steel | 940 | 680 | 21,000 | 3.2 | Required | 16 | -20° to 250° | 0000000 | 00000 |
10mm | 16mm | 20mm | Steel | 1,050 | 850 | 19,000 | 4.2 | Required | 16 | -20° to 250° | 0000000 | 00000 |
12mm | 18mm | 26mm | Steel | 1,400 | 1,300 | 19,000 | 10 | Required | 16 | -20° to 250° | 0000000 | 00000 |
16mm | 22mm | 26mm | Steel | 1,450 | 1,600 | 14,000 | 16 | Required | 16 | -20° to 250° | 0000000 | 00000 |
20mm | 26mm | 26mm | Steel | 1,800 | 2,100 | 11,000 | 24 | Required | 16 | -20° to 250° | 0000000 | 00000 |
25mm | 32mm | 30mm | Steel | 2,500 | 2,900 | 8,700 | 50 | Required | 16 | -20° to 250° | 0000000 | 00000 |
30mm | 37mm | 30mm | Steel | 2,550 | 3,350 | 7,300 | 70 | Required | 16 | -20° to 250° | 0000000 | 00000 |