Bearings Industry: Online B2B Portal for Bearings

Estimates basic rating life from the dynamic load rating and the applied load.

Bearing type

Basic dynamic load rating C (from catalogue)

Combined load — compute P from radial & axial

Equivalent dynamic load P

Speed n (rpm — optional, for hours)

Reliability

Rating life

Suggests ISO 286 tolerance classes from the load conditions. The key rule: the ring carrying a rotating load needs an interference fit.

Load & rotation condition

Load magnitude (P vs C)

Shaft (bore) diameter, mm

Outer ring must move axially (non-locating / floating end)

Recommended fit

A first-pass check of whether a speed is sensible for the bearing size and lubricant, using the speed factor n·d_m.

Bore d, mm

Outside diameter D, mm

Speed n, rpm

Lubrication

Bearing type

Speed factor limit (mm/min — editable)

Speed factor result

Calculators