About Ball and Roller Bearings
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About Track Rollers
Also known as cam followers, track rollers have a thick outer roller that runs directly on a flat surface.
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About Durometer
Durometer is the international standard for measuring the hardness of rubber, plastic, and most nonmetallic materials.
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Permanently Lubricated Ball Bearings
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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 | ||||||||||||
6804 | 20mm | 32mm | 7mm | Steel | 350 | 210 | 11,500 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 000000 |
Sealed | ||||||||||||
6802-2RS | 15mm | 24mm | 5mm | Steel | 350 | 170 | 15,000 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 00000 |
Light Duty Ball Bearings
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Use these bearings where high speed and precision are not a concern.
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 | |
Shielded | ||||||||||||
3005-2Z | 5/16" | 29/32" | 5/16" | Steel | 350 | 300 | 2,500 | Lubricated | -20° to 250° | Not Rated | 0000000 | 000000 |
3006-2Z | 3/8" | 29/32" | 5/16" | Steel | 350 | 300 | 2,500 | Lubricated | -20° to 250° | Not Rated | 0000000 | 00000 |
3007-2Z | 7/16" | 29/32" | 5/16" | Steel | 350 | 300 | 2,500 | Lubricated | -20° to 250° | Not Rated | 0000000 | 00000 |
Sealed | ||||||||||||
3005-2RS | 5/16" | 29/32" | 5/16" | Steel | 350 | 300 | 2,500 | Lubricated | -20° to 250° | Not Rated | 0000000 | 00000 |
3006-2RS | 3/8" | 29/32" | 5/16" | Steel | 350 | 300 | 2,500 | Lubricated | -20° to 250° | Not Rated | 0000000 | 00000 |
3007-2RS | 7/16" | 29/32" | 5/16" | Steel | 350 | 300 | 2,500 | Lubricated | -20° to 250° | Not Rated | 0000000 | 00000 |
Flanged Ball Bearings
Sealed bearings block out dust and other contaminants better than open and shielded bearings, but retain the most heat.
Bearings with extended inner ring provide additional shaft support.
For technical drawings and 3-D models, click on a part number.
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with Extended
Inner Ring
Flange | Inner Ring | Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Housing ID | Wd. | OD | Thick. | OD | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
3/8" | 29/32" | 11/32" | 1" | 0.06" | 0.5" | 0.406" | Steel | 350 | 300 | 2,500 | Lubricated | -20° to 250° | Not Rated | 00000000 | 000000 |
Thrust-Load-Rated Threaded Track Rollers
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These rollers are rated to handle radial and thrust (top and side) loads simultaneously. Also known as cam followers, track rollers support loads while guiding and positioning work. Thread the stud directly into a component or secure with a nut for through-hole mounting. All rollers are permanently lubricated and have end seals to retain lubricant and protect rolling elements from dirt and contamination.
For technical drawings and 3-D models, click on a part number.
Roller | Stud | Thread | Shoulder | Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Wd. | Dia. | Lg. | Size | Lg. | Dia. | Lg. | Max. Speed, rpm | Static | Dynamic | Static Thrust Load Cap., lbs. | Max. Temp., °F | Bearing Type | Includes | Each | |
Steel Flat Rollers with Seal | ||||||||||||||||
1" | 3/4" | 7/16" | 1" | 7/16"-20 | 1/2" | 1/2" | 1/32" | 6,000 | 380 | 350 | 240 | 325° | Ball | Mounting Hardware | 0000000 | 0000000 |
Thrust-Load-Rated Corrosion-Resistant Threaded Track Rollers
![](/prerenderstable/mvPRE/contents/gfx/imagecache/631/6318k42-@halfx_636970454767834301.png?ver=imagenotfound)
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These rollers are rated to handle radial and thrust (top and side) loads simultaneously. Also known as cam followers, track rollers support loads while guiding and positioning work. Thread the stud directly into a component or secure with a nut for through-hole mounting. All rollers are permanently lubricated and have end seals to retain lubricant and protect rolling elements from dirt and contamination.
440C stainless steel rollers are harder and more wear resistant than 303 stainless steel rollers.
For technical drawings and 3-D models, click on a part number.
Roller | Stud | Thread | Shoulder | Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Wd. | Dia. | Lg. | Size | Lg. | Dia. | Lg. | Max. Speed, rpm | Static | Dynamic | Static Thrust Load Cap., lbs. | Max. Temp., °F | Bearing Type | Includes | Each | |
440C Stainless Steel Flat Rollers with Seal | ||||||||||||||||
Hex Stud End Drive | ||||||||||||||||
1 1/4" | 13/16" | 1/2" | 1 1/4" | 1/2"-20 | 5/8" | 5/8" | 1/32" | 6,000 | 350 | 350 | 320 | 225° | Ball | Mounting Hardware | 0000000 | 0000000 |
Abrasion-Resistant Keyed Drive Rollers
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These urethane rollers are wear and chemical resistant. They’re also nonmarring. Use them with a keyed shaft to prevent slippage in high-torque applications. Also known as contact wheels and feed rollers, drive rollers spin in unison with a shaft or stud to transmit power.
Note: The hub on rollers with 1 1/2" to 4" roller diameter protrudes on one side only.
For technical drawings and 3-D models, click on a part number.
Roller | Keyway | Set Screws | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Wd. | For Shaft Dia. | Wd. | Dp. | Overall Wd. | Dynamic Radial Load Capacity, lbs. | Shaft Mount Type | No. Required | Included | Temperature Range, °F | Durometer (Hardness Rating) | Each | |
Urethane Roller with Steel Hub | |||||||||||||
4" | 2" | 1/2" | 1/8" | 1/16" | 3 1/4" | 350 | Keyway, Set Screw | 2 | Yes | -20° to 120° | 85A (Hard) Red | 00000000 | 000000 |
4" | 2" | 3/4" | 3/16" | 3/32" | 3 1/4" | 350 | Keyway, Set Screw | 2 | Yes | -20° to 120° | 85A (Hard) Red | 0000000 | 000000 |
Keyed Drive Rollers
![](/prerenderstable/mvPRE/contents/gfx/imagecache/610/61065k56p1-d03c-digital@halfx_637002413540944179.png?ver=imagenotfound)
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These rollers are made of SBR rubber. Use them with a keyed shaft to prevent slippage in high-torque applications. Also known as contact wheels and feed rollers, drive rollers spin in unison with a shaft or stud to transmit power.
Note: The hub on rollers with 3" to 4" roller diameter protrudes on one side only.
For technical drawings and 3-D models, click on a part number.
Roller | Keyway | Set Screws | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Wd. | For Shaft Dia. | Wd. | Dp. | Overall Wd. | Dynamic Radial Load Capacity, lbs. | Shaft Mount Type | No. Required | Included | Temperature Range, ° F | Durometer (Hardness Rating) | Each | |
SBR Rubber Roller with Cast Iron Hub | |||||||||||||
4" | 2" | 3/4" | 3/16" | 3/32" | 3 1/4" | 350 | Keyway, Set Screw | 2 | Yes | 0° to 180° | 70A (Hard) Black | 00000000 | 000000 |