| K |
Tapered Bore, Taper 1:12 |
| TN |
Injection Molded Plastic Cage. Alternative Designs And/Or Material Are Identified By An Added Figure |
| UP |
Special Tolerance Class For Machine Tool Spindle Bearings; Dimensional Accuracy Approximately To ISO Tolerance Class 4 And Running Accuracy Better Than ISO Class 4 |
| VR522 |
Cylindrical Roller Bearings Are Available With Information About The Exact Outside Diameter. This Information Is Marked On The Box As Well As On An Inspection Sheet Inside The Box. Bearings Supplied With This Information And Also With The Actual Clearance Specified Have The Additional Suffix VR521, VR522 Or VQ496 (Also Including Smaller Clearance Than Standard) |
