Home > Bearings Catalogue Online > Deep Groove Ball Bearings

Bearing 638/4-2Z (SKF)

Bearing 638/4-2Z Bearing 638/4-2Z

Deep groove ball bearings, single row 638/4-2Z

Bearing number : 638/4-2Z

Size (mm) : 4x9x4

Brand : SKF

Bore Diameter (mm) : 4

Outer Diameter (mm) : 9

Width (mm) : 4

Bearing dimensions and specification in SKF catalogue:

d - 4 mm

D - 9 mm

B - 4 mm

d1 - - 5.2 mm

D2 - - 8.1 mm

r1,2 - min. - 0.1 mm

da - min. - 4.6 mm

da - max. - 5.1 mm

Da - max. - 8.4 mm

ra - max. - 0.1 mm

Basic dynamic load rating - C - 0.54 kN

Basic static load rating - C0 - 0.18 kN

Fatigue load limit - Pu - 0.07 kN

Reference speed - 140000 r/min

Limiting speed - 70000 r/min

Calculation factor - kr - 0.015

Calculation factor - f0 - 10

Mass bearing - 0.0013 kg

Tags :  SKF , 4x9x4

Search bearings

© 2018 BearingSize.info | Contacts