| DEEP GROOVE BALL BEARINGS - MINIATURE | |||||||||||
| Part Number | Dimensions (Metric) | Approx. | Interchange | ||||||||
| Old No. | d | D | B | Wgt. lbs | ADR | ISC | NMB | NTN | RMB | SKF | |
| 681 | AX-1 | 1 | 3 | 1 | 0.0001 | AX-1 | 681 | L-310 | 681 | UL103 | AX-1 |
| MR-31X | - | 1 | 3 | 1.5 | 0.0001 | - | MR31 | L-310W51 | - | - | - |
| 691 | - | 1 | 4 | 1.6 | 0.0001 | - | 691 | - | 691 | - | - |
| MR-41/1.2 | - | 1.2 | 4 | 1.8 | 0.0001 | - | MR41X | R-412 | - | - | - |
| 68/1.5 | AX-1.5 | 1.5 | 4 | 1.2 | 0.0001 | AX-1.5 | 681X | L-415 | 68/1.5 | UL154 | AX-1.5 |
| X-1.5 | - | 1.5 | 5 | 1.7 | 0.0004 | X-1.5 | - | - | - | - | X-1.5 |
| 619/1.5 | - | 1.5 | 5 | 2 | 0.0004 | 619/1.5 | 691X | R-515 | 69/1.5 | R1550 | 619/1.5 |
| 60/1.5 | - | 1.5 | 6 | 2.5 | 0.0005 | - | 601X | R-615 | 60/1.5 | - | - |
| 672 | - | 2 | 4 | 1.2 | 0.0003 | - | - | - | 672 | - | - |
| 682 | BX-2 | 2 | 5 | 1.5 | 0.0003 | BX-2 | 682 | L-520 | 682 | UL205 | BX-2 |