| Old No. | 638/4-ZZ | ![]() Two Shields ZZ | |
| Dimensions (metric) | d | 4 | |
| D | 9 | ||
| B | 4 | ||
| Approx. Wgt. lbs | .0030 | ||
| Interchange | ADR | 638/4ZZ | |
| ISC | 684ZZS | ||
| Nachi | 684ZZ | ||
| NMB | L-940ZZ | ||
| NTN | W684ZZA | ||
| RMB | ULZ409 | ||
| SKF | 638/4ZZ | ||
| 1) Also available with one shield - suffix “Z”. No change in width dimensions. | |||
Hot number:SKF 22232 CCK/W33 NTN NK 32/30 OKB 53856K OKB 266319 NSK 23280CAE4 FAG 241/600-B-MB NTN 6708 NSK 644/632 NACHI 6802NKE FBJ HM807044/HM807010 CX L225842/10 FYH UCTU317-600 RBC AW-212 SKF SA50C GMN HYSM6010CTAP2/ABEC9
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