SKF 6321-Z bearing

105x225x49

the suspect bearing and sent it to SKF for a rigorous bearing failure analysis. SKF confirmed that the bearing was counter-feit, which nearly caused the “repairs” to be worse than the original problem.



Deep groove ball bearings, single row 6321-Z

Bearing number : 6321-Z

Size (mm) : 105x225x49

Brand : SKF

Bore Diameter (mm) : 105

Outer Diameter (mm) : 225

Width (mm) : 49

Bearing dimensions and specification in SKF catalogue:

d - 105 mm

D - 225 mm

B - 49 mm

d1 - - 141.5 mm

D2 - - 193.35 mm

r1,2 - min. - 3 mm

da - min. - 119 mm

da - max. - 140.9 mm

Da - max. - 211 mm

ra - max. - 2.5 mm

Basic dynamic load rating - C - 182 kN

Basic static load rating - C0 - 153 kN

Fatigue load limit - Pu - 5.1 kN

Reference speed - 6300 r/min

Limiting speed - 4000 r/min

Calculation factor - kr - 0.03

Calculation factor - f0 - 13

Mass bearing - 8.17 kg

Bearing 6321-Z Bearing 6321-Z

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Contact Details

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Basheki.sepwer.Hong Kong
Tel: 00852 - 30696864
Fax: 0086 18626329562

E-mail: [email protected]