The permissible speed can be estimated using the speed ratings listed in the product tables and applying the information provided under Speeds.
SKF recommends oil lubrication for bearings with a ring centred cage. When these bearings are grease lubricated (→ Adjustments of relubrication intervals due to operating conditions and bearing types, Cylindrical roller bearings) the speed factor is limited:
for bearings with an MA, MB, ML or MP cage
→ A ≤ 250 000 mm/min
for bearings with a PA or PHA cage
→ A ≤ 450 000 mm/min
||n dm [mm/min]|
||bearing mean diameter [mm]
= 0,5 (d + D)
||rotational speed [r/min]|
For applications exceeding these values, contact the SKF application engineering service.