Mounted Bearing Type Mounted Bearing Type |
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![]() | Base Mount |
Shaft Mount Type Shaft Mount Type |
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Bearing Type Bearing Type |
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![]() | Ball |
For Load Direction For Load Direction |
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![]() | Radial |
Ball Bearing Type Ball Bearing Type |
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![]() | With Retaining Ring |
For Shaft Type For Shaft Type |
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![]() | Round |
Housing Material Housing Material |
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Bearing Material Bearing Material |
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Dynamic Radial Load Capacity Dynamic Radial Load Capacity |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Maximum Speed Maximum Speed | Show |
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Maximum Speed Maximum Speed | Hide |
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About Ball and Roller Bearings
More
Set Screw Collar Ball Bearings


Slip these bearings onto a shaft and secure with the included set screws, no special tools required. All have an extended inner ring for additional shaft support.
Bearings with a black-oxide steel ring have some corrosion resistance.
Sealed bearings block out dust and other contaminants better than shielded bearings.
Bearings with a retaining ring have a removable retaining ring that holds the bearing inside a housing.
For technical drawings and 3-D models, click on a part number.
Inner Ring | Retaining Ring | Radial Load Cap., lbs. | ||||||||||||
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Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | OD | Wd. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | ABEC Rating | Each | |
Sealed (Lubricated) | ||||||||||||||
Black-Oxide Steel—With Retaining Ring | ||||||||||||||
ER15 | 15/16" | 2.048" | 3/4" | 1.375" | 1.375" | 2 17/64" | 0.04688" | 2,800 | 1,650 | 6,350 | -20° to 220° | ABEC-1 | 0000000 | 000000 |
ER205 | 25mm | 52mm | 19.1mm | 34.9mm | 34.9mm | 57.5mm | 1.2mm | 2,800 | 1,650 | 6,350 | -20° to 220° | ABEC-1 | 0000000 | 00000 |
Clamp-On Collar Ball Bearings


Quickly secure these bearings onto shafts with the clamp-on collar for a concentric, mar-free hold. Tighten the single screw on the locking collar around its inner ring on your shaft to center and secure the shaft in the bearing bore. The collar’s firm grip reduces vibration and noise in your system. The steel rings on these bearings have a black-oxide finish for some corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Inner Ring | Retaining Ring | Radial Load Cap., lbs. | |||||||||||||
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Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | OD | Wd. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Shielded | |||||||||||||||
Black-Oxide Steel Ring | |||||||||||||||
ER205 | 25mm | 52mm | 19mm | 35mm | 35mm | 58mm | 1.2mm | 2,800 | 1,650 | 6,350 | Lubricated | -20° to 220° | ABEC-1 | 0000000 | 000000 |
Compact-Base Mounted Ball Bearings


Also known as tapped-base bearings, these ball bearings mount to surfaces from the bottom through threaded holes. Because of their narrow profile, they’re commonly used in tight-clearance spaces, including systems where multiple shafts are mounted close together.
Set screw shaft-mount bearings secure to shafts when you tighten the set screw, with no need for an additional collar. Set screws cause some amount of marring on shafts.
Concentric lock shaft-mount bearings have a locking collar that centers and secures the shaft in the bearing bore. To install these bearings, tighten the single screw on the locking collar around its inner ring on your shaft. Their firm grip on shafts reduces vibration for quieter operation.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Hole | Radial Load Cap., lbs. | ||||||||||||||
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For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Thread Size | Thread Pitch | Dp. | Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | ||||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||||
1" | 1 7/16" | 2 13/16" | 3" | 1 1/2" | 3/8"-16 | __ | 0.5" | 2" | 2,800 | 1,650 | 6,350 | -20° to 220° | Self Aligning | Lubricated | 00000000 | 0000000 |
Shaft Mount Type: Concentric Lock | ||||||||||||||||
25mm | 36.5mm | 71.4mm | 76.2mm | 38.1mm | M10 | 1.5 mm | 11mm | 56mm | 2,800 | 1,650 | 6,350 | -20° to 220° | Self Aligning | Lubricated | 00000000 | 000000 |