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By certification 
d 15
D 35
B 11
r 0.6
Cr 7.65
Cor 3.75
(Z,ZZ,RU,2RU) 20000
(RD,2RD) 18000
(RS,2RS) 13000
Oil 24000
Bearing Designation With Steel Shields 6202 ZZ
da 19
max 19.5
Da 31
ra 0.6
Mass(g) 0.045
D 35
B 11
r 0.6
Cr 7.65
Cor 3.75
(Z,ZZ,RU,2RU) 20000
(RD,2RD) 18000
(RS,2RS) 13000
Oil 24000
Bearing Designation With Steel Shields 6202 ZZ
da 19
max 19.5
Da 31
ra 0.6
Mass(g) 0.045