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Permissible speed

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