About Ball and Roller Bearings
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Ball Bearings
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | |||||||||||||
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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 |
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.
Sealed bearings block out dust and other contaminants.
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 | ||||||||||||||
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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 | ||
Sealed | ||||||||||||||
1 1/2" | 2 1/16" | 1 1/4" | Steel | 10,300 | 15,500 | 2,500 | Lubricated | 12 | -30° to 250° | 0000000 | 000000 | 1 1/4" | 0000000 | 000000 |
Cylindrical Roller Bearings
With cylindrical rollers to distribute load over a large surface area, these bearings are often used to support heavy loads at high speeds in applications such as power generation and metal recycling. A cage prevents the rollers from touching each other, reducing friction for high-speed use. All of these bearings have an inner ring that's flanged on one side, so they only allow heat expansion in one direction. The bearings can be taken apart, so you can install them with precision and quickly dismantle them for maintenance or replacement.
For technical drawings and 3-D models, click on a part number.
Radial Load Capacity, lbs. | Thrust Load Capacity, lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Diameter, mm | For Housing ID, mm | Width, mm | Ring Material | Dynamic | Static | Dynamic | Static | Maximum Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microns | Temperature Range, °F | Specifications Met | Each | |
For Combined Radial and Thrust Loads | ||||||||||||||
Open | ||||||||||||||
30 | 62 | 16 | Steel | 10,300 | 8,400 | Not Rated | Not Rated | 14,200 | Required | 0.8 | -20° to 245° | DIN 5412-1 | 00000000 | 0000000 |
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.
Sealed bearings block out dust and contaminants.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | ||||||||||||||
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For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Hole Lg. | Hole Wd. | Hole Ctr.-to-Ctr. | Dynamic | Static | Dynamic Thrust Load Cap., lbs. | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Steel Bearings with Cast Iron Housing—Shaft Mount Type: Set Screw | ||||||||||||||||
1 3/4" | 2 1/4" | 4 1/2" | 8 7/8" | 3 1/2" | 7/8" | 3/4" | 7" | 10,300 | 43,000 | 2,550 | 3,000 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 0000000 |
2" | 2 1/4" | 4 1/2" | 8 7/8" | 3 1/2" | 7/8" | 3/4" | 7" | 10,300 | 43,000 | 2,550 | 3,000 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 000000 |
50mm | 2 1/4" | 4 1/2" | 8 7/8" | 3 1/2" | 7/8" | 3/4" | 7" | 10,300 | 43,000 | 2,550 | 3,000 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 000000 |
Mounted Roller Bearings with Four-Bolt Flange
The tapered rollers in these bearings support large shafts at high static loads. Seals block out dust and contaminants.
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 | Dynamic Thrust Load Cap., lbs. | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Tapered-Roller Bearings | |||||||||||||||
Steel Bearings with Cast Iron Housing—Shaft Mount Type: Set Screw | |||||||||||||||
1 3/4" | 5 5/8" | 5 5/8" | 3 5/8" | 1 3/16" | 1/2" | 4 3/8" | 10,300 | 43,000 | 2,550 | 3,000 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 0000000 |
2" | 5 5/8" | 5 5/8" | 3 5/8" | 1 3/16" | 1/2" | 4 3/8" | 10,300 | 43,000 | 2,550 | 3,000 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 000000 |
50mm | 5 5/8" | 5 5/8" | 3 5/8" | 1 3/16" | 1/2" | 4 3/8" | 10,300 | 43,000 | 2,550 | 3,000 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 000000 |