Bearing Number | Boundary dimensions | |||
d in | dmm | Din | Dmm | |
FR2-5 | 1/8 | 3.175 | 5/16 | 7.938 | FR2-6 | 1/8 | 3.175 | 3/8 | 9.525 |
FR2A | 1/8 | 3.175 | 1/2 | 12.7 | FR3 | 3/16 | 4.763 | 1/2 | 12.7 |
FR3A | 3/16 | 4.763 | 1/2 | 12.7 | FR4 | 1/4 | 6.35 | 5/8 | 15.875 |
FR4A | 1/4 | 6.35 | 3/4 | 19.05 |