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Model: NACHI 7301B - Single row angular contact ball bearings>
Bearing Size
d = 12D = 37
B = 12
a = 4.3
da1(min) = 18
da2(min) = 15
Da1(max) = 31
Da2(max) = 33.4
ra(max) = 1
ra1(max) = 0.6
Mass = 0.063
Basic load rating: 10800
Rated static load: 5050
Limit speed（Grease lubrication）: 16000
Limit speed（Oil lubrication）: 22000
