| Dimensions (metric) | d | 4 | ![]() Two Shields ZZ |
| D | 16 | ||
| B | 5 | ||
| Approx. Wgt. lbs | .0120 | ||
| Interchange | ADR | W634ZZ | |
| ISC | 634hZZ | ||
| NMB | SSR-1640ZZ | ||
| NTN | F634ZZ | ||
| RMB | - | ||
| SKF | - | ||
| 1) Outer races, inner races and balls are manufactured from 440C or equivalent stainless steel. They are through hardened to a hardness of 55-57RC. 2) The cages are manufactured from 304 or equivalent stainless steel. 3) Shields are manufactured from 304 or equivalent stainless steel. | |||
Hot number:SNR 1318 STEYR 7240 B/DF NACHI NU 1021 TIMKEN 67389 OKB NTN 5S-7921UADG/GNP42 CYSD 7912C Timken HH953749/HH953710 NTN NU1011 KOYO SB205-16 INA 5205-ZZ RIV 6212-Z SKF KA-50CPO NTN SS634 SKF AOHX 30/500 G
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