| Dimensions (metric) | d | 8 | ![]() Open |
| D | 16 | ||
| B | 4 | ||
| Approx. Wgt. lbs | .0070 | ||
| Interchange | ADR | - | |
| ISC | 688h | ||
| NMB | SSL-1680 | ||
| NTN | F688 | ||
| RMB | UL816X | ||
| SKF | W618/8 | ||
| 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. | |||
Hot number:RHP 7215 AC FAG HK 2520 OKB 57942/12K SKF 22318 EJA/VA405 KOYO 53204U ISO 7005 ADF NTN SX07B65LLU New Departure 6010 FAG 7206TGP/4-2RS New Departure E-12 Andrews FT-016 SKF NF-420 SKF BC4B 319446 SKF BEAM 050140-2RZ RHP 6002-RS
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