Page 979 - Rollingbearings
P. 979
Designation system
Group 4
4 1 4 2 4 3 4 4 4 5 4 6
Group 4.6: Other variants
16
Group 4.5: Lubrication
Group 4.4: Stabilization
Group 4.3: Bearing sets, matched bearings
Group 4.2: Accuracy, clearance, preload, quiet running
Group 4.1: Materials, heat treatment
977
