Deep groove ball bearings, stainless steel W 637/4 XR-2Z

Bearing number : W 637/4 XR-2Z

Size (mm) : 4x8x3

Brand : SKF

Bore Diameter (mm) : 4

Outer Diameter (mm) : 8

Width (mm) : 3

Bearing dimensions and specification in SKF catalogue:

d - 4 mm

D - 8 mm

B - 3 mm

d1 - - 5 mm

D2 - - 7.4 mm

D3 - 9.2 mm

C - 0.6 mm

r1,2 - min. - 0.1 mm

da - min. - 4.8 mm

ra - max. - 0.1 mm

Basic dynamic load rating - C - 0.225 kN

Basic static load rating - C0 - 0.072 kN

Fatigue load limit - Pu - 0.003 kN

Reference speed - 150000 r/min

Limiting speed - 75000 r/min

Calculation factor - kr - 0.02

Calculation factor - f0 - 7.2

Mass bearing - 0.0006 kg