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Model: NACHI 7321CDB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 105D = 225
B = 49
a = -5.3
da1(min) = 119
da2(min) = 119
Da1(max) = 211
Da2(max) = 218
ra(max) = 2.5
ra1(max) = 1
Mass = 9.34
Basic load rating: 365000
Rated static load: 425000
Limit speed（Grease lubrication）: 3800
Limit speed（Oil lubrication）: 5400
