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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Ball 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 | |
R4A-2Z | 1/4" | 3/4" | 9/32" | Steel | 520 | 200 | 38,000 | Lubricated | -58° to 302° | ABEC-1 | 000000000 | 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 | |
R4A-2RS | 1/4" | 3/4" | 9/32" | Steel | 520 | 200 | 19,000 | Lubricated | -58° to 302° | ABEC-1 | 000000000 | 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 | ||||||||||||
R4A | 1/4" | 3/4" | 7/32" | Steel | 520 | 200 | 24,000 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 000000 |
Sealed | ||||||||||||
R4A-2RS | 1/4" | 3/4" | 9/32" | Steel | 520 | 200 | 24,000 | 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 | ||||||||||||
626-2Z | 6 | 19 | 6 | Steel | 520 | 210 | 40,000 | Lubricated | -20° to 250° | ABEC-3 | 0000000 | 000000 |
Sealed | ||||||||||||
626-2RS | 6 | 19 | 6 | Steel | 520 | 210 | 24,000 | Lubricated | -20° to 210° | ABEC-3 | 0000000 | 00000 |
Food Industry Permanently Lubricated Stainless Steel Ball Bearings
Good for applications with incidental food contact, these 440C stainless steel bearings have a food-grade, solid polymer lubricant between the balls and ring that eliminates 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 | Specifications Met | Each | |
Sealed | |||||||||||||
626-2RS | 6 | 19 | 6 | 440C Stainless Steel | 520 | 200 | 24,000 | Lubricated | -40° to 200° | ABEC-1 | FDA Compliant 21 CFR 178.3570 | 00000000 | 000000 |
Flanged Ball Bearings
The flange ensures proper positioning inside a tube or housing.
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.
For technical drawings and 3-D models, click on a part number.
Flange | Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | OD | Thick. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
626 | 6mm | 19mm | 6mm | 22mm | 1.5mm | Steel | 520 | 200 | 45,000 | Lubricated | -50° to 300° | ABEC-3 | 000000000 | 00000 |
635 | 5mm | 19mm | 6mm | 22mm | 1.5mm | Steel | 520 | 200 | 45,000 | Lubricated | -50° to 300° | ABEC-3 | 000000000 | 00000 |
Flange | Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | OD | Thick. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
607-2Z | 7mm | 19mm | 6mm | 22mm | 1.5mm | Steel | 520 | 200 | 38,000 | Lubricated | -50° to 300° | ABEC-3 | 000000000 | 000000 |
626-2Z | 6mm | 19mm | 6mm | 22mm | 1.5mm | Steel | 520 | 200 | 38,000 | Lubricated | -50° to 300° | ABEC-3 | 000000000 | 00000 |
Miniature High-Load Threaded Track Rollers
Despite their size, these rollers handle high radial load capacities without sacrificing speed. They’re often used in robots to guide small movements.
For technical drawings and 3-D models, click on a part number.
Roller, mm | Stud, mm | Thread | Shoulder, mm | Radial Load Cap., lbs. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Wd. | Dia. | Lg. | Size | Pitch, mm | Lg., mm | Dia. | Lg. | Max. Speed, rpm | Static | Dynamic | Max. Temp., °F | Bearing Type | Includes | Each | |
Steel Flat Rollers without Seal | ||||||||||||||||
8 | 7 | 4 | 8 | M4 | 0.7 | 4 | 7.7 | 0.7 | 5,000 | 680 | 520 | 175° | Needle Roller | Mounting Hardware | 0000000 | 000000 |
440C Stainless Steel Flat Rollers without Seal | ||||||||||||||||
8 | 7 | 4 | 8 | M4 | 0.7 | 4 | 7.7 | 0.7 | 5,000 | 680 | 520 | 175° | Needle Roller | Mounting Hardware | 0000000 | 00000 |