| TN |
Injection Molded Plastic Cage. Alternative Designs And/Or Material Are Identified By An Added Figure |
| SP |
Special Precision Class For Machine Tool Bearings: Dimensional Accuracy Approximately To P5, Running Accuracy Approximately To P4 |
| 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) |
