The Inch – R Series Radial Ball Bearing starts with the ¼ inch ball bearing bore and is available up to 1 ½ inch bearing bore. These Inch Bearings – R Series enable the inch series bearings to take a thrust load as well as a radial load. These R series inch series ball bearings are used in high speed motor applications.
| R2 | R2 Inch Bearing 1/8 Inch Bore 3/8 Inch Outside Diameter |
| R2A | R2A Inch Bearing 1/8 Inch Bore 1/2 Inch Outside Diameter |
| R3 | R3 Inch Bearing 3/16 Inch Bore 1/2 Inch Outside Diameter |
| R3-ZZ | R3-ZZ Inch Bearing 3/16 Inch Bore 1/2 Inch Outside Diameter |
| R3-2RS | R3-2RS Inch Bearing 3/16 Inch Bore 1/2 Inch Outside Diameter |
| R4 | R4 Inch Bearing 1/4 Inch Bore 5/8 Inch Outside Diameter |
| R4-ZZ | R4-ZZ Inch Bearing 1/4 Inch Bore 5/8 Inch Outside Diameter |
| R4-2RS | R4-2RS Inch Bearing 1/4 Inch Bore 5/8 Inch Outside Diameter |
| R4A | R4A Inch Bearing 1/4 Inch Bore 3/4 Inch Outside Diameter |
| R4A-ZZ | R4A-ZZ Inch Bearing 1/4 Inch Bore 3/4 Inch Outside Diameter |
| R4A-2RS | R4A-2RS Inch Bearing 1/4 Inch Bore 3/4 Inch Outside Diameter |
| R6 | R6 Inch Bearing 3/8 Inch Bore 7/8 Inch Outside Diameter |
| R6-ZZ | R6-ZZ Inch Bearing 3/8 Inch Bore 7/8 Inch Outside Diameter |
| R6-2RS | R6-2RS Inch Bearing 3/8 Inch Bore 7/8 Inch Outside Diameter |
| R8 | R8 Inch Bearing 1/2 Inch Bore 1-1/8 Inch Outside Diameter |
| R8-ZZ | R8-ZZ Inch Bearing 1/2 Inch Bore 1-1/8 Inch Outside Diameter |
| R8-2RS | R8-2RS Inch Bearing 1/2 Inch Bore 1-1/8 Inch Outside Diameter |
| R2-2RS | R2-2RS Inch Bearing 1/8 Inch Bore 3/8 Inch Outside Diameter |
| R10 | R10 Inch Bearing 5/8 Inch Bore 1-3/8 Inch Outside Diameter |
| R10-ZZ | R10-ZZ Inch Bearing 5/8 Inch Bore 1-3/8 Inch Outside Diameter |
| R10-2RS | R10-2RS Inch Bearing 5/8 Inch Bore 1-3/8 Inch Outside Diameter |
| R12 | R12 Inch Bearing 3/4 Inch Bore 1-5/8 Inch Outside Diameter |
| R12-ZZ | R12-ZZ Inch Bearing 3/4 Inch Bore 1-5/8 Inch Outside Diameter |
| R12-2RS | R12-2RS Inch Bearing 3/4 Inch Bore 1-5/8 Inch Outside Diameter |
| R14 | R14 Inch Bearing 7/8 Inch Bore 1-7/8 Inch Outside Diameter |
| R14-ZZ | R14-ZZ Inch Bearing 7/8 Inch Bore 1-7/8 Inch Outside Diameter |
| R14-2RS | R14-2RS Inch Bearing 7/8 Inch Bore 1-7/8 Inch Outside Diameter |
| R16 | R16 Inch Bearing 1 Inch Bore 2 Inch Outside Diameter |
| R16-ZZ | R16-ZZ Inch Bearing 1 Inch Bore 2 Inch Outside Diameter |
| R16-2RS | R16-2RS Inch Bearing 1 Inch Bore 2 Inch Outside Diameter |
| R18 | R18 Inch Bearing 1-1/8 Inch Bore 2-1/8 Inch Outside Diameter |
| R18-ZZ | R18-ZZ Inch Bearing 1-1/8 Inch Bore 2-1/8 Inch Outside Diameter |
| R18-2RS | R18-2RS Inch Bearing 1-1/8 Inch Bore 2-1/8 Inch Outside Diameter |
| R20 | R20 Inch Bearing 1-1/4 Inch Bore 2-1/4 Inch Outside Diameter |
| R20-ZZ | R20-ZZ Inch Bearing 1-1/4 Inch Bore 2-1/4 Inch Outside Diameter |
| R20-2RS | R20-2RS Inch Bearing 1-1/4 Inch Bore 2-1/4 Inch Outside Diameter |
| R22 | R22 Inch Bearing 1-3/8 Inch Bore 2-1/2 Inch Outside Diameter |
| R22-ZZ | R22-ZZ Inch Bearing 1-3/8 Inch Bore 2-1/2 Inch Outside Diameter |
| R22-2RS | R22-2RS Inch Bearing |
| R24 | R24 Inch Bearing 1-1/2 Inch Bore 2-5/8 Inch Outside Diameter |
| R24-ZZ | R24-ZZ Inch Bearing 1-1/2 Inch Bore 2-5/8 Inch Outside Diameter |
| R24-2RS | R24-2RS Inch Bearing 1-1/2 Inch Bore 2-5/8 Inch Outside Diameter |