| Old No. | 638/3-ZZ | ![]() Two Shields ZZ | |
| Dimensions (metric) | d | 3 | |
| D | 7 | ||
| B | 3 | ||
| Approx. Wgt. lbs | .0008 | ||
| Interchange | ADR | AX3ZZ | |
| ISC | 683ZZS | ||
| Nachi | 683ZZ | ||
| NMB | L-730ZZ | ||
| NTN | W683ZZA | ||
| RMB | ULZ307 | ||
| SKF | AX3ZZ | ||
| 1) Also available with one shield - suffix “Z”. No change in width dimensions. | |||
Hot number:KOYO NNU 4928 K NACHI NJ 313 E NMB L-1280 OKB 113517W2 KOYO 32211JR-1 ISO 32968 NTN 6807N SKF 7204 BECBY Timken AX 55 78 CX CX146 FBJ FR133 FAG W-25/8 SKF NJ 326 ECM RHP 6015 NOK AS568-014-A
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