Deep groove ball bearings, stainless steel W 638/2 XR-2Z

Bearing number : W 638/2 XR-2Z

Size (mm) : 2x5x2,5

Brand : SKF

Bore Diameter (mm) : 2

Outer Diameter (mm) : 5

Width (mm) : 2,5

Bearing dimensions and specification in SKF catalogue:

d - 2 mm

D - 5 mm

B - 2.5 mm

d1 - - 2.7 mm

D2 - - 4.4 mm

D3 - 6.2 mm

C - 0.6 mm

r1,2 - min. - 0.1 mm

da - min. - 2.6 mm

ra - max. - 0.1 mm

Basic dynamic load rating - C - 0.094 kN

Basic static load rating - C0 - 0.025 kN

Fatigue load limit - Pu - 0.001 kN

Reference speed - 200000 r/min

Limiting speed - 100000 r/min

Calculation factor - kr - 0.02

Calculation factor - f0 - 6.5

Mass bearing - 0.00025 kg