Inch deep groove ball bearing R20, Bore 1.125", Outside diameter 2.25", Width 0.375"
R series bearings are single-row radial conrad-type bearings that are available in inch sizes for shafts from 1/8" to 11/2" in diameter. Open, shielded, and sealed types are available, and many sizes are available in stainless steel. R series supplied with ABMA CN radial clearance unless otherwise specified.
| d | 31.75 mm | Bore diameter |
| D | 57.15 mm | Outside diameter |
| B | 9.525 mm | Width |
| Cr | 10800 kN | Basic dynamic load rating |
| C0r | 7520 kN | Basic static load rating |
| 11000 r/min | Reference Speed | |
| 9000 r/min | Limiting speed |
| ≈m | 0.09 kg | Weight |
| None | Locating feature outer ring | |
| Bearing steel | Material of race | |
| Sheet steel | Cage | |
| Open | Closures | |
| CN | Radial clearance | |
| P0 | Tolerance |
| SKF | MRC | FAG | NDH | RHP | FAFNIR |
| R20 | R-20 | EE-11 | R-20 | KLNJ 1 1/4 | S12K |
