About Ball and Roller Bearings
More
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.
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 |
One-Way Locking Ball Bearing Clutches
Internal locking elements (sprags) lock to transmit torque in one direction while turning freely in the other direction. Use them in applications where precision movement is required, such as pick-and-place and automated indexing conveyor systems. Shields keep out dust and contaminants.
Shielded bearings dissipate heat better than sealed bearings, but don’t keep out as much dust.
For dirty or dusty environments, sealed bearings are the best choice, since they block out contaminants better than shielded bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Max. Torque, ft.-lbs. | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Shielded | |||||||||||||
608-2Z | 8 | 22 | 9 | Steel | 720 | 190 | 15,000 | 1.5 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 0000000 |
FZ 6201 | 12 | 32 | 10 | Steel | 1,150 | 530 | 10,000 | 6.5 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6202 | 15 | 35 | 11 | Steel | 1,160 | 540 | 9,400 | 15 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6203 | 17 | 40 | 12 | Steel | 1,270 | 640 | 8,200 | 23 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6204 | 20 | 47 | 14 | Steel | 1,540 | 940 | 6,800 | 64 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6205 | 25 | 52 | 15 | Steel | 1,620 | 1,040 | 5,600 | 70 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6206 | 30 | 62 | 16 | Steel | 1,730 | 1,270 | 4,000 | 165 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6207 | 35 | 72 | 17 | Steel | 1,830 | 1,490 | 3,600 | 240 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6208 | 40 | 80 | 22 | Steel | 2,010 | 1,790 | 3,000 | 305 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
Sealed | |||||||||||||
FZ 6201 2RS | 12 | 32 | 14 | Steel | 1,150 | 530 | 10,000 | 6.5 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6202 2RS | 15 | 35 | 16 | Steel | 1,160 | 540 | 8,400 | 15 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6203 2RS | 17 | 40 | 17 | Steel | 1,270 | 640 | 7,300 | 23 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6204 2RS | 20 | 47 | 19 | Steel | 1,540 | 940 | 6,000 | 64 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6205 2RS | 25 | 52 | 20 | Steel | 1,620 | 1,040 | 5,200 | 70 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6206 2RS | 30 | 62 | 21 | Steel | 1,730 | 1,270 | 4,200 | 165 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6207 2RS | 35 | 72 | 22 | Steel | 1,830 | 1,490 | 3,600 | 240 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
FZ 6208 2RS | 40 | 80 | 27 | Steel | 2,010 | 1,790 | 3,000 | 305 | Lubricated | -40° to 170° | ABEC-1 | 0000000 | 000000 |
One-Way Clutches
Since they transfer torque in one direction and spin freely in the other, these clutches are useful in applications where you don’t want motion to reverse, such as in backstopping, indexing, and overrunning. For example, they can be used to prevent a conveyor from reversing direction. They’re through-shaft clutches, so they regulate torque transmission between a drive shaft and a mounted component such as a pulley, sprocket, or gear.
When choosing a clutch, consider how much torque you need to transfer. Roller clutches are best for low- to medium-torque transfer in overrunning and indexing applications. Sprag clutches handle higher torque than roller clutches because they have more contact points. This makes them best for backstopping applications.
You should also consider how the clutch will attach to your mounted component. Clutches with a knurled hub can be press fit into the bore of your component. Clutches with a keyed hub let you slip on your component. Clutches without a hub have a precision ground outer race, so they can be press fit directly into a component and positioned anywhere along the length of your shaft. They also have mounting holes on their face you can use to secure your component or an anti-rotation device, such as a torque arm, for a different backstopping setup.
Clutches that mount to shafts with set screws bite into your shaft when tightened to hold it. Clutches that mount to shafts with a slip fit must be secured with a shaft collar or in some other way that prevents them from moving along the length of your shaft.
Covers protect you from rotating equipment when the clutch is mounted to the end of the shaft.
Torque arms work as an anchor for clutches in backstopping applications. Mount to the outer race of your clutch and a stationary piece of equipment.
For technical drawings and 3-D models, click on a part number.
Shaft | Hub | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Max. Torque, ft.-lbs. | Max. Speed, rpm | OD | Overall Lg. | Material | Keyway Wd. × Keyway Dp. | Mount Type | Dia. | Lg. | Each | |
Clockwise Drive Direction | |||||||||||
1/4" | 0.83 | 5,000 | 15/16" | 31/32" | Steel | __ | Set Screw | 5/8" | 9/32" | 0000000 | 0000000 |
3/8" | 4.16 | 5,000 | 1 3/16" | 1" | Steel | 3/32" × 3/64" | Set Screw | 9/16" | 3/8" | 0000000 | 000000 |
1/2" | 50 | 2,000 | 1 1/2" | 1 9/32" | Steel | 1/8" × 1/16" | Set Screw | 7/8" | 1/2" | 0000000 | 000000 |
Counterclockwise Drive Direction | |||||||||||
1/4" | 0.83 | 5,000 | 15/16" | 31/32" | Steel | __ | Set Screw | 5/8" | 9/32" | 0000000 | 000000 |
3/8" | 4.16 | 5,000 | 1 3/16" | 1" | Steel | 3/32" × 3/64" | Set Screw | 9/16" | 3/8" | 0000000 | 000000 |
1/2" | 50 | 2,000 | 1 1/2" | 1 9/32" | Steel | 1/8" × 1/16" | Set Screw | 7/8" | 1/2" | 0000000 | 000000 |
Shaft | Hub | Clockwise Drive Direction | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Max. Torque, ft.-lbs. | Max. Speed, rpm | OD | Overall Lg. | Material | Keyway Wd. × Keyway Dp. | Mount Type | Dia. | Lg. | Keyway Wd. × Keyway Dp. | Each | |
1/4" | 5 | 1,800 | 1 5/8" | 1 15/16" | Steel | 3/16" × 1/16" | Slip Fit | 7/8" | 13/16" | 3/16" × 3/32" | 0000000 | 0000000 |
3/8" | 14 | 1,800 | 2" | 2 1/8" | Steel | 3/16" × 1/16" | Slip Fit | 1 1/4" | 1" | 3/16" × 3/32" | 0000000 | 000000 |
1/2" | 14 | 1,800 | 2" | 2 1/8" | Steel | 3/16" × 1/16" | Slip Fit | 1 1/4" | 1" | 3/16" × 3/32" | 0000000 | 000000 |
5/8" | 28 | 1,500 | 2 5/8" | 2 23/32" | Steel | 3/16" × 1/16" | Slip Fit | 1 3/8" | 1 5/16" | 3/16" × 3/32" | 0000000 | 000000 |
3/4" | 100 | 1,000 | 3 5/8" | 3 11/32" | Steel | 3/8" × 3/16" | Slip Fit | 2 1/4" | 1 1/2" | 3/8" × 3/16" | 0000000 | 000000 |
1" | 100 | 1,000 | 3 5/8" | 3 11/32" | Steel | 3/8" × 3/16" | Slip Fit | 2 1/4" | 1 1/2" | 3/8" × 3/16" | 0000000 | 000000 |
1 1/4" | 100 | 1,000 | 3 5/8" | 3 11/32" | Steel | 3/8" × 3/16" | Slip Fit | 2 1/4" | 1 1/2" | 3/8" × 3/16" | 0000000 | 000000 |
1 1/2" | 200 | 800 | 4 1/2" | 4 1/2" | Steel | 3/8" × 3/16" | Slip Fit | 3" | 2 1/16" | 3/8" × 3/16" | 0000000 | 000000 |
Max. Speed, rpm | Shaft | Hub | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Max. Torque, ft.-lbs. | Inner-Race | Outer-Race | OD | Overall Lg. | Material | Keyway Wd. × Keyway Dp. | Mount Type | Dia. | Lg. | Keyway Wd. × Keyway Dp. | Each | |
Clockwise Drive Direction | |||||||||||||
5/8" | 110 | 1,950 | 900 | 2" | 2 3/4" | Steel | 3/16" × 3/32" | Set Screw | 1 1/4" | 1" | 3/16" × 3/32" | 0000000 | 000000000 |
3/4" | 300 | 1,950 | 750 | 2.88" | 3.19" | Steel | 3/16" × 3/32" | Set Screw | 1 3/8" | 1 5/16" | 3/16" × 3/32" | 0000000 | 00000000 |
1" | 450 | 1,650 | 600 | 3 1/4" | 3.56" | Steel | 1/4" × 1/8" | Set Screw | 1 3/4" | 1 7/16" | 1/4" × 1/8" | 0000000 | 00000000 |
1 1/4" | 675 | 1,250 | 350 | 3 3/4" | 3 1/2" | Steel | 5/16" × 5/32" | Set Screw | 2 1/4" | 1 7/16" | 5/16" × 5/32" | 0000000 | 00000000 |
Counterclockwise Drive Direction | |||||||||||||
5/8" | 110 | 1,950 | 900 | 2" | 2 3/4" | Steel | 3/16" × 3/32" | Set Screw | 1 1/4" | 1" | 3/16" × 3/32" | 0000000 | 00000000 |
3/4" | 300 | 1,950 | 750 | 2.88" | 3.19" | Steel | 3/16" × 3/32" | Set Screw | 1 3/8" | 1 5/16" | 3/16" × 3/32" | 0000000 | 00000000 |
1" | 450 | 1,650 | 600 | 3 1/4" | 3.56" | Steel | 1/4" × 1/8" | Set Screw | 1 3/4" | 1 7/16" | 1/4" × 1/8" | 0000000 | 00000000 |
1 1/4" | 675 | 1,250 | 350 | 3 3/4" | 3 1/2" | Steel | 5/16" × 5/32" | Set Screw | 2 1/4" | 1 7/16" | 5/16" × 5/32" | 0000000 | 00000000 |
Clutches | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Max. Speed, rpm | Shaft | Covers | Torque Arms | |||||||||||
For Shaft Dia. | Max. Torque, ft.-lbs. | Inner-Race | Outer-Race | OD | Overall Lg. | Material | Keyway Wd. × Keyway Dp. | Mount Type | Each | Each | Each | |||
3/4" | 300 | 2,800 | 850 | 3 1/2" | 2 3/4" | Steel | 3/16" × 3/32" | Slip Fit | 0000000 | 000000000 | 00000000 | 0000000 | 00000000 | 0000000 |
1" | 1,175 | 2,500 | 800 | 4 1/4" | 3 1/2" | Steel | 1/4" × 1/8" | Slip Fit | 0000000 | 00000000 | 00000000 | 000000 | 00000000 | 000000 |
1 1/4" | 1,175 | 2,500 | 800 | 4 1/4" | 3 1/2" | Steel | 1/4" × 1/8" | Slip Fit | 0000000 | 00000000 | 00000000 | 000000 | 00000000 | 000000 |
1 1/2" | 2,250 | 2,200 | 750 | 5 3/8" | 3 3/4" | Steel | 3/8" × 3/16" | Slip Fit | 0000000 | 00000000 | 00000000 | 000000 | 00000000 | 000000 |
1 3/4" | 2,250 | 2,200 | 750 | 5 3/8" | 3 3/4" | Steel | 3/8" × 3/16" | Slip Fit | 0000000 | 00000000 | 00000000 | 000000 | 00000000 | 000000 |