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Model: NACHI 7204B - Single row angular contact ball bearings>
Bearing Size
d = 20D = 47
B = 14
a = 7.1
da1(min) = 26
da2(min) = 23
Da1(max) = 41
Da2(max) = 43.4
ra(max) = 1
ra1(max) = 0.6
Mass = 0.11
Basic load rating: 13700
Rated static load: 7850
Limit speed（Grease lubrication）: 11000
Limit speed（Oil lubrication）: 16000
