Friction coefficient range of various rolling bearings

Calculation method of rolling bearing type and its dynamic friction coefficient μ:

μ= M/（P*(d/2)）

M: Dynamic friction moment (n · mm), {KGF · mm}

P: Bearing load (equivalent dynamic load) (n), {KGF}

d: Shaft diameter, inner diameter of inner ring (mm)

Approximate value of bearing type μ
Deep groove ball bearing    0.0013
Angular contact ball bearing    0.0015
Self aligning ball bearing    0.0010
Thrust ball bearing     0.0011
Cylindrical roller bearing     0.0010
Tapered roller bearing     0.0022
Self aligning roller bearing    0.0028
Needle roller bearing with cage    0.0015
Full needle bearing    0.0025
Thrust self aligning roller bearing    0.0028