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Dynamic Radial Load Capacity Dynamic Radial Load Capacity |
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Maximum Speed Maximum Speed | Show |
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About Ball and Roller Bearings
More
Ball Bearings
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
Sealed bearings block out dust and other contaminants better than open and shielded bearings, but retain the most heat.
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 | |
6804 | 20mm | 32mm | 7mm | Steel | 900 | 550 | 21,000 | Lubricated | -20° to 230° | ABEC-1 | 00000000 | 000000 |

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 | |
6804-2Z | 20mm | 32mm | 7mm | Steel | 900 | 550 | 21,000 | Lubricated | -20° to 230° | ABEC-1 | 00000000 | 000000 |

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 | |
6804-2RS | 20mm | 32mm | 7mm | Steel | 900 | 550 | 21,000 | Lubricated | -20° to 230° | ABEC-1 | 00000000 | 000000 |
Stainless Steel Ball Bearings
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
Sealed bearings block out dust and other contaminants better than open and shielded bearings, but retain the most heat.
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 | |
R10 | 5/8" | 1 3/8" | 9/32" | 440C Stainless Steel | 1,050 | 650 | 21,000 | Lubricated | -40° to 240° | ABEC-1 | 0000000 | 000000 |
R12 | 3/4" | 1 5/8" | 5/16" | 440C Stainless Steel | 1,650 | 1,000 | 21,000 | Lubricated | -40° to 240° | ABEC-1 | 0000000 | 00000 |

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 | |
R10-2Z | 5/8" | 1 3/8" | 11/32" | 440C Stainless Steel | 1,050 | 650 | 21,000 | Lubricated | -40° to 240° | ABEC-1 | 0000000 | 000000 |

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 | |
R10-2RS | 5/8" | 1 3/8" | 11/32" | 440C Stainless Steel | 1,050 | 650 | 21,000 | 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.
Sealed bearings have even better resistance to dust and contaminants than open 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 | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
636 | 6 | 22 | 7 | 440C Stainless Steel | 740 | 310 | 21,000 | Lubricated | -10° to 200° | ABEC-1 | 00000000 | 000000 |
Sealed | ||||||||||||
636-2RS | 6 | 22 | 7 | 440C Stainless Steel | 740 | 310 | 21,000 | Lubricated | -10° to 200° | ABEC-1 | 00000000 | 00000 |
Flanged Ultra-Thin Ball Bearings


Flanged and creating twice as many contact points as angular-contact ball bearings, these bearings ensure correct positioning within a tube or housing and resist radial loads.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
For technical drawings and 3-D models, click on a part number.
Flange | Radial Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Diameter, mm | For Housing ID, mm | Width, mm | OD, mm | Thickness, mm | Dynamic | Static | Max. Speed, rpm | Lubrication | Temperature Range, °F | ABEC Rating | Each | |
Steel Ring | ||||||||||||
Shielded | ||||||||||||
20 | 32 | 7 | 35 | 1.5 | 900 | 550 | 21,000 | Lubricated | -50° to 300° | ABEC-1 | 00000000 | 000000 |
Ultra-Thin Ball Bearings


These bearings have twice as many contact points as angular-contact ball bearings. Fit onto large-diameter hollow shafts to run air and hydraulic lines, electrical wiring, and other components through moving parts in assemblies such as index and rotary tables, packaging equipment, and robotics.
Open bearings dissipate heat more efficiently than shielded bearings.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | Thrust Load Cap., lbs. | Moment Load Cap., ft.-lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Housing ID | Wd. | Dynamic | Static | Dynamic | Static | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Steel Ring | ||||||||||||||
Open | ||||||||||||||
25mm | 37mm | 7mm | 960 | 650 | Not Rated | Not Rated | Not Rated | Not Rated | 21,000 | Lubricated | -50° to 130° | ABEC-1 | 00000000 | 000000 |
Shielded | ||||||||||||||
20mm | 32mm | 7mm | 900 | 550 | Not Rated | Not Rated | Not Rated | Not Rated | 21,000 | Lubricated | -40° to 150° | ABEC-1 | 00000000 | 00000 |
20mm | 32mm | 10mm | 900 | 550 | Not Rated | Not Rated | Not Rated | Not Rated | 21,000 | Lubricated | -40° to 150° | ABEC-1 | 00000000 | 00000 |
20mm | 37mm | 9mm | 1,400 | 820 | Not Rated | Not Rated | Not Rated | Not Rated | 21,000 | Lubricated | -40° to 150° | ABEC-1 | 00000000 | 0000 |
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.
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 | 21,000 | Required | 8 | -20° to 280° | DIN 281, ISO 76 | 00000000 | 000000 |
3/16" | 11/32" | 3/8" | Steel | 630 | 550 | 21,000 | Required | 8 | -40° to 280° | __ | 00000000 | 00000 |
Precision Needle-Roller Bearings


Install these bearings directly onto hardened and ground shafts. They have higher load capacity, speed, and accuracy than standard needle-roller bearings.
Open bearings dissipate heat more efficiently than sealed bearings.
Shaft liners allow you to use the bearing on unhardened and unground shafts.
For technical drawings and 3-D models, click on a part number.
Bearings | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Radial Load Cap., lbs. | Optional Shaft Liners | |||||||||||||
For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microinch | Temp. Range., °F | Each | For Shaft Dia. | Each | ||
Open | ||||||||||||||
5/8" | 1 1/8" | 3/4" | Steel | 3,900 | 4,800 | 21,000 | Required | 16 | 0° to 245° | 0000000 | 000000 | 3/8" | 000000 | 000000 |
18mm | 26mm | 16mm | Steel | 2,800 | 3,650 | 21,000 | Required | 4 | 0° to 245° | 0000000 | 00000 | 15mm | 0000000 | 00000 |
20mm | 28mm | 20mm | Steel | 4,150 | 5,350 | 21,000 | Required | 4 | 0° to 245° | 0000000 | 00000 | 17mm | 0000000 | 00000 |
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.
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 | |
Triple Row | ||||||||||||
301 Stainless Steel Springs | ||||||||||||
8mm | 14mm | 20mm | Steel | 940 | 680 | 21,000 | 3.2 | Required | 16 | -20° to 250° | 0000000 | 000000 |
Needle-Roller Thrust Bearings
Thinner rollers allow these bearings to fit in tighter spaces than tapered-roller thrust bearings. Because of the large contact area between the rollers and washers (not included), these bearings are great for medium to heavy duty, low-friction jobs. For use on hardened and ground surfaces.
For technical drawings and 3-D models, click on a part number.

Thrust Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microns | Temp. Range, °F | Specifications Met | Each | |
Steel Rollers | |||||||||||
Open | |||||||||||
4mm | 14mm | 2mm | 1,000 | 1,800 | 21,000 | Required | 0.2 | 0° to 240° | DIN 5405-2 | 000000 | 00000 |
5mm | 15mm | 2mm | 1,050 | 2,050 | 21,000 | Required | 0.2 | 0° to 240° | DIN 5405-2 | 000000 | 0000 |
Mounted Roller Bearings
Roller bearings have a thinner profile and larger contact area than ball bearings, making them stronger and more space-efficient than ball bearings.
Use needle-roller bearings with hardened and ground shafts.
Bearings with aluminum housing are more corrosion resistant than bearings with a cast iron housing.
Self-aligning bearings compensate for shaft misalignment.
For technical drawings and 3-D models, click on a part number.

Overall | Mounting | Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Steel Bearings with Aluminum Housing—Shaft Mount Type: Press Fit | ||||||||||||||
1/4" | 9/16" | 1 1/8" | 2 1/4" | 7/16" | 9/32" | 1 3/4" | 570 | 470 | 21,000 | -20° to 210° | Self Aligning | Lubricated | 0000000 | 000000 |
Mounted Roller Bearings with Two-Bolt Flange

These roller bearings handle extremely high speeds for their small size. Use with hardened and ground shafts.
Self-aligning bearings compensate for shaft misalignment.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Lubrication | Each | |
Open Needle-Roller Bearings | |||||||||||||
Fixed Alignment Steel Bearings with Steel Housing—Shaft Mount Type: Slip Fit | |||||||||||||
3/16" | 7/8" | 1 25/32" | 1/2" | 3/64" | 7/32" | 1 7/32" | 620 | 530 | 21,000 | -20° to 210° | Lubricated | 0000000 | 000000 |
Self Aligning Steel Bearings with Steel Housing—Shaft Mount Type: Press Fit | |||||||||||||
1/4" | 1 3/16" | 2 3/32" | 15/32" | 1/16" | 7/32" | 1 17/32" | 570 | 470 | 21,000 | -20° to 210° | Lubricated | 0000000 | 00000 |