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 | Specifications Met | Each | |
6211 | 55mm | 100mm | 21mm | Steel | 10,300 | 6,500 | 9,500 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 000000 |
6309 | 45mm | 100mm | 25mm | Steel | 11,900 | 7,050 | 9,500 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 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 | Specifications Met | Each | |
6013-2Z | 65mm | 100mm | 18mm | Steel | 7,300 | 5,600 | 8,100 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 0000000 |
6211-2Z | 55mm | 100mm | 21mm | Steel | 9,750 | 5,850 | 6,300 | Lubricated | -20° to 230° | ABEC-1 | __ | 00000000 | 00000 |
6309-2Z | 45mm | 100mm | 25mm | Steel | 11,900 | 7,050 | 6,700 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 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 | Specifications Met | Each | |
6013-2RS | 65mm | 100mm | 18mm | Steel | 7,300 | 5,600 | 3,500 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 0000000 |
6309-2RS | 45mm | 100mm | 25mm | Steel | 11,900 | 6,800 | 6,700 | Lubricated | -20° to 230° | ABEC-1 | __ | 00000000 | 00000 |
6211-2RS | 55mm | 100mm | 21mm | Steel | 9,650 | 6,500 | 3,900 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 0000000 | 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.
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. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
6211 | 55mm | 100mm | 21mm | Steel | 7,500 | 5,850 | 3,700 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 0000000 |
6309 | 45mm | 100mm | 25mm | Steel | 9,150 | 6,800 | 4,000 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 00000 |
Sealed | ||||||||||||
6013-2RS | 65mm | 100mm | 18mm | Steel | 5,300 | 4,750 | 3,500 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 000000 |
6211-2RS | 55mm | 100mm | 21mm | Steel | 7,500 | 5,850 | 3,700 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 000000 |
6309-2RS | 45mm | 100mm | 25mm | Steel | 9,150 | 6,800 | 4,000 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 00000 |
Precision Ball Bearings


For greater accuracy and higher speeds, these bearings are made to tighter tolerances than standard ball bearings.
Shielded bearings dissipate heat more efficiently than sealed bearings.
Sealed bearings block out dust and other 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 | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Shielded | ||||||||||||
6013-2Z | 65 | 100 | 18 | Steel | 7,150 | 5,600 | 7,000 | Lubricated | -20° to 230° | ABEC-3 | 0000000 | 0000000 |
6211-2Z | 55 | 100 | 21 | Steel | 10,350 | 6,500 | 7,000 | Lubricated | -20° to 230° | ABEC-3 | 0000000 | 000000 |
6309-2Z | 45 | 100 | 25 | Steel | 12,400 | 7,050 | 7,500 | Lubricated | -20° to 230° | ABEC-3 | 0000000 | 000000 |
Sealed | ||||||||||||
6013-2RS | 65 | 100 | 18 | Steel | 7,150 | 5,600 | 4,300 | Lubricated | -30° to 210° | ABEC-3 | 0000000 | 000000 |
6211-2RS | 55 | 100 | 21 | Steel | 10,350 | 6,500 | 4,300 | Lubricated | -30° to 210° | ABEC-3 | 0000000 | 000000 |
6309-2RS | 45 | 100 | 25 | Steel | 12,400 | 7,050 | 4,500 | Lubricated | -30° to 210° | ABEC-3 | 00000000 | 000000 |
Self-Aligning Ball Bearings

With a spherical raceway and two rows of balls, these bearings compensate for shaft misalignment.
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. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Misalignment Capability | Temp. Range, °F | ABEC Rating | Each | |
Open | |||||||||||||
2211 | 55 | 100 | 25 | Steel | 6,000 | 2,200 | 6,000 | Required | 4° | Not Rated | ABEC-1 | 00000000 | 0000000 |
2309 | 45 | 100 | 36 | Steel | 12,350 | 3,750 | 5,600 | Required | 4° | Not Rated | ABEC-1 | 00000000 | 000000 |
Electrically Insulated Ball Bearings

Good for use in electric motors and power generators, these bearings have ceramic balls that insulate against stray current to prevent damage to the bearing. The ceramic balls generate less heat than steel balls, so they require lubrication less frequently.
Shielded bearings block out dust and other contaminants.
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 | |
Shielded | ||||||||||||
6211-2Z | 55 | 100 | 21 | Steel | 11,400 | 7,300 | 9,600 | Lubricated | -20° to 245° | ABEC-1 | 0000000 | 0000000 |
6309-2Z | 45 | 100 | 25 | Steel | 14,800 | 9,200 | 9,700 | Lubricated | -20° to 245° | ABEC-1 | 0000000 | 000000 |
Tapered Bore Self-Aligning Ball Bearings


For use on tapered shafts and round shafts with adapter sleeves, these ball-bearings have a spherical raceway to compensate for shaft misalignment.
For technical drawings and 3-D models, click on a part number.
Radial Load Capacity | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Diameter, mm | For Housing ID, mm | Width, mm | Ring Material | Dynamic | Static, lbs. | Maximum Speed, rpm | Lubrication | Misalignment Capability | Maximum Temperature, °F | Rate of Taper | ABEC Rating | Each | |
Open | ||||||||||||||
2211K | 55 | 100 | 25 | Steel | 6,000 | 2,200 | 6,000 | Required | 4° | 240° | 1:12 | ABEC-1 | 0000000 | 0000000 |
2309K | 45 | 100 | 36 | Steel | 12,350 | 3,750 | 5,600 | Required | 4° | 240° | 1:12 | ABEC-1 | 0000000 | 000000 |
Square-Bore Ball Bearings


Mount these bearings onto a square shaft. They have an extended inner ring for additional shaft support. Since they’re sealed, they block out dust and contaminants better than open and shielded bearings.
For technical drawings and 3-D models, click on a part number.
Inner Ring | Radial Load Cap., lbs. | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Wd., mm | Square Wd., mm | For Housing ID, mm | Wd., mm | OD, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Sealed | |||||||||||||||
GW211SPP17 | 38.5 | 38.887 | 100 | 33.3 | 69.8 | 44.4 | Steel | 9,750 | 6,550 | 500 | Lubricated | -20° to 200° | ABEC-1 | 0000000 | 000000 |
Stainless Steel Ball Bearings
Bearings are 440C stainless steel for good corrosion resistance.
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 | |
6013-2RS | 65mm | 100mm | 18mm | 440C Stainless Steel | 6,850 | 5,660 | 4,000 | Lubricated | -20° to 210° | ABEC-1 | 00000000 | 0000000 |
6211-2RS | 55mm | 100mm | 21mm | 440C Stainless Steel | 9,750 | 6,500 | 4,000 | Lubricated | -20° to 210° | 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.
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 | ||||||||||||||
Shielded | ||||||||||||||
80mm | 100mm | 10mm | 2,850 | 2,950 | Not Rated | Not Rated | Not Rated | Not Rated | 12,700 | Lubricated | -40° to 150° | ABEC-1 | 00000000 | 000000 |
Angular-Contact Thrust Ball Bearings

Single-row bearings handle thrust loads on one side. For applications with thrust loads on both sides, mount them in pairs.
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
For technical drawings and 3-D models, click on a part number.
Combined Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Contact Angle | Temp. Range, °F | ABEC Rating | Each | |
Single Row | |||||||||||||
Open | |||||||||||||
7309 | 45 | 100 | 25 | Steel | 12,500 | 8,400 | 8,000 | Required | 40° | -40° to 300° | ABEC-3 | 0000000 | 0000000 |
High-Speed Angular-Contact Thrust Ball Bearings

An ABEC-7 rating means these bearings are made to some of the tightest tolerances, so they operate at the highest speeds.
Sealed bearings block out dust and other contaminants better than open bearings, but retain the most heat.
For technical drawings and 3-D models, click on a part number.
Combined Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Contact Angle | Temp. Range, °F | ABEC Rating | Each | |
Single Row | |||||||||||||
Sealed | |||||||||||||
7013 | 65 | 100 | 18 | Steel | 8,750 | 7,750 | 14,000 | Lubricated | 15° | 0° to 230° | ABEC-7 | 0000000 | 000000000 |
High-Load Crossed-Roller Bearings

The thicker inner and outer raceways on these bearings can handle heavier loads than the thin-profile crossed-roller bearings. The rollers face in alternating directions to allow for rigid, accurate motion under any combination of radial, thrust, and moment (twisting) loads. Use in applications where highly accurate motion is necessary, such as machine tools and industrial robots.
Open bearings dissipate heat more efficiently than sealed bearings.
Sealed bearings block out dust and other contaminants better than open bearings, but retain more heat.
For technical drawings and 3-D models, click on a part number.
Combined Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Features | Each | |
Open | |||||||||||
70 | 100 | 13 | Steel | 4,500 | 6,200 | 880 | Required | 0° to 230° | Lubrication Groove, Two Lubrication Holes | 0000000 | 0000000 |
Sealed | |||||||||||
70 | 100 | 13 | Steel | 4,500 | 6,200 | 700 | Lubricated | 0° to 210° | Lubrication Groove, Two Lubrication Holes | 0000000 | 000000 |
Spherical-Roller Bearings

Two rows of rollers give these bearings dynamic radial load capacities over five times higher than comparably sized tapered-roller bearings. Also known as rock crusher bearings, they handle heavy shock loads and are used for metal milling machinery, mining and oil field equipment, and in paper mills.
For technical drawings and 3-D models, click on a part number.