Precision Rolling Bearings - NTN S...

Table .1 Types of precision rolling bearings for machine tools ① Main spindle bearings Bearing type Angular contact ball bearing Non-contact sealed type Non-contact sealed type Double-row cylindrical roller bearing Cross section Bearing type Bearing bore mm Contact angle Remarks Page 78C 79 (U), 5S-79 (U) 70 (U), 5S-70 (U) 72C