KOYO 7228B bearing

140x250x42

Koyo Seiko was founded in 1921 by Mr. Ikeda. In the decennia that followed it has become one of the world's leading manufacturers of bearings and automotive steering systems. With the merge of Koyo Seiko Co., Ltd. and Toyoda Machine works, Ltd. on January 1, 2006 JTEKT Corporation came into existence.



Angular contact ball bearing 7228B

Bearing number : 7228B

Size (mm) : 140x250x42

Brand : KOYO

Bore Diameter (mm) : 140

Outer Diameter (mm) : 250

Width (mm) : 42

Bearing dimensions and specification in KOYO catalogue:

d - 140 mm

D - 250 mm

B - 42 mm

C - 42 mm

Angle (α) - 40 °

a - 102,8 mm

r min. - 3 mm

r1 min. - 1,1 mm

da min. - 154 mm

Da max. - 236 mm

ra max. - 2.5 mm

Weight - 7,76 Kg

Basic dynamic load rating (C) - 197 kN

Basic static load rating (C0) - 213 kN

(Grease) Lubrication Speed - 2200 r/min

(Oil) Lubrication Speed - 2900 r/min

Tags :  KOYO , 140x250x42

Bearing 7228B

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