About Ball and Roller Bearings
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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. | |||||||||||||
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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 | |
R14 | 7/8" | 1 7/8" | 3/8" | Steel | 2,250 | 1,300 | 14,500 | Required | -20° to 230° | ABEC-1 | __ | 000000000 | 00000 |
6203 | 17mm | 40mm | 12mm | Steel | 2,250 | 1,050 | 26,500 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 0000 |
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 | Each | |
R14-2Z | 7/8" | 1 7/8" | 1/2" | Steel | 2,250 | 1,300 | 9,000 | Lubricated | -20° to 230° | ABEC-1 | 000000000 | 000000 |
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 | Each | |
R14-2RS | 7/8" | 1 7/8" | 1/2" | Steel | 2,250 | 1,300 | 9,000 | Lubricated | -20° to 230° | ABEC-1 | 000000000 | 000000 |
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 | ||||||||||||
R18 | 1 1/8" | 2 1/8" | 3/8" | Steel | 2,250 | 1,600 | 7,000 | Lubricated | 10° to 200° | ABEC-1 | 0000000 | 000000 |
R20 | 1 1/4" | 2 1/4" | 3/8" | Steel | 2,250 | 1,650 | 6,000 | Lubricated | 10° to 200° | ABEC-1 | 0000000 | 00000 |
Sealed | ||||||||||||
R20-2RS | 1 1/4" | 2 1/4" | 1/2" | Steel | 2,250 | 1,650 | 6,000 | Lubricated | 10° to 200° | ABEC-1 | 0000000 | 00000 |
6006-2RS | 30mm | 55mm | 13mm | Steel | 2,250 | 1,600 | 7,000 | 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. | ||||||||||||
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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 | ||||||||||||
6301-2Z | 12 | 37 | 12 | Steel | 2,250 | 930 | 22,000 | Lubricated | -20° to 230° | ABEC-3 | 0000000 | 000000 |
Sealed | ||||||||||||
6301-2RS | 12 | 37 | 12 | Steel | 2,250 | 930 | 14,000 | Lubricated | -30° to 210° | ABEC-3 | 00000000 | 00000 |
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 | ||||||||||||
6006 | 30 | 55 | 13 | 440C Stainless Steel | 2,250 | 1,600 | 7,000 | Lubricated | -10° to 200° | ABEC-1 | 00000000 | 000000 |
Sealed | ||||||||||||
6006-2RS | 30 | 55 | 13 | 440C Stainless Steel | 2,250 | 1,600 | 7,000 | Lubricated | -10° to 200° | ABEC-1 | 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.
Mounted Bearings with Three-Bolt Flange
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Stainless steel bearings are more corrosion resistant than steel bearings. NSF registered H1, the lubricant in these bearings is suitable for incidental contact with food.
For technical drawings and 3-D models, click on a part number.
Bearings | |||||||||||||||||
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Overall | Mounting | Radial Load Cap., lbs. | Optional Covers | ||||||||||||||
For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. Lg. | Hole Ctr.-to-Ctr. Ht. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Specifications Met | Each | Each | ||
Sealed 440 Stainless Steel Ball Bearings with Polybutylene Plastic Housing—Self Aligning | |||||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||||
3/4" | 3" | 4 1/4" | 2 1/2" | 1 21/64" | 23/32" | 27/64" | 2 1/8" | 1 11/16" | 2,250 | 1,500 | 5,900 | 0° to 210° | NSF Registered H1 | 0000000 | 0000000 | 0000000 | 000000 |
Sealed 440 Stainless Steel Ball Bearings with 304 Stainless Steel Housing—Self Aligning | |||||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||||
3/4" | 2 37/64" | 4 3/16" | 2 3/8" | 1 5/16" | 5/16" | 29/64" | 1 1/2" | 7/8" | 2,250 | 1,500 | 5,900 | 0° to 210° | NSF Registered H1 | 0000000 | 000000 | 0000000 | 00000 |