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About Ball and Roller Bearings
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Ball Bearings
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
Bearings with retaining ring have a removable retaining ring that holds the bearing inside a housing.
Shielded
Shielded
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 | Specifications Met | Each | |
| 6304-2Z | 20mm | 52mm | 15mm | Steel | 3,550 | 1,750 | 14,000 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 000000 |
Shielded with Retaining Ring
Shielded with Retaining Ring
Bearing with
Retaining
Ring
Retaining
Ring
Retaining Ring, mm | 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 | |
| 6304-2Z | 20mm | 52mm | 15mm | 57.9 | 1.12 | Steel | 3,750 | 1,750 | 15,000 | Lubricated | -20° to 230° | ABEC-1 | 0000000 | 000000 |
Precision Ball Bearings
Shielded
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.
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 | ||||||||||||
| 6304-2Z | 20 | 52 | 15 | Steel | 3,750 | 1,750 | 15,000 | Lubricated | -20° to 230° | ABEC-3 | 0000000 | 000000 |
Stainless Steel Ball Bearings
Bearings are 440C stainless steel for good corrosion resistance.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
Shielded
Shielded
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 | |
| 6304-2Z | 20mm | 52mm | 15mm | 440C Stainless Steel | 3,000 | 1,400 | 15,000 | Lubricated | -40° to 240° | ABEC-1 | 00000000 | 0000000 |