NTN 7909UADG/GNP42U3G High precision angular contact ball bearings

d:45 mm; D:68 mm; B:12 mm; d1:52.7 mm; d2:50.8 mm; D1:60.4 mm; D2:64 mm; a:19.2 mm; Contact angle α:25 °; rs min:0.6 mm; r1s min:0.3 mm; f0:16.1; Precision class:P42; Mass:0.12 kg; Brand:NTN; Dynamic load, C:17 kN; Static load, C0:14.1 kN; Nlim (oil):29,000 rpm; Nlim (grease):18,000 rpm; Preload lev