About Ball and Roller Bearings
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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. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | ||||||||||||||
ER204 | 20mm | 47mm | 15.9mm | 30.2mm | 31mm | 52.4mm | 1.2mm | 2,600 | 1,400 | 7,300 | -20° to 220° | ABEC-1 | 0000000 | 000000 |
Angular-Contact Thrust Ball Bearings
Double-row bearings handle thrust loads in both directions.
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.
Combined Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Contact Angle | Temp. Range, °F | ABEC Rating | Each | |
Double Row | |||||||||||||
Open | |||||||||||||
3201 | 12 | 32 | 15.9 | Steel | 2,250 | 1,250 | 20,000 | Required | 30° | -20° to 230° | ABEC-1 | 00000000 | 000000 |
3202 | 15 | 35 | 15.9 | Steel | 2,500 | 1,500 | 17,000 | Required | 30° | -20° to 230° | ABEC-1 | 00000000 | 00000 |
Shielded | |||||||||||||
3201-2Z | 12 | 32 | 15.9 | Steel | 2,250 | 1,250 | 22,000 | Lubricated | 30° | -20° to 230° | ABEC-1 | 00000000 | 000000 |
3202-2Z | 15 | 35 | 15.9 | Steel | 2,500 | 1,500 | 18,000 | Lubricated | 30° | -20° to 230° | ABEC-1 | 00000000 | 000000 |
Sealed | |||||||||||||
3201-2RS | 12 | 32 | 15.9 | Steel | 2,250 | 1,250 | 15,000 | Lubricated | 30° | -20° to 230° | ABEC-1 | 00000000 | 000000 |
3202-2RS | 15 | 35 | 15.9 | Steel | 2,500 | 1,500 | 14,000 | Lubricated | 30° | -20° to 230° | ABEC-1 | 00000000 | 000000 |