| 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:CX 2580/2520 ISO 32014 CYSD 7300BDT KOYO HH228340/HH228310 SKF NJ328ECM NTN UC216D1 MRC 6230-R Hyatt 93032 Smith CRHSBC-30 SKF (Old No.) HK-2522-RS FAG KF-80ARO NH RLS-26 SKF 332129 A/HA4 SKF NU 348 M SKF QJ 315 N2PHAS
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