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Model: NACHI 7038CDB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 190D = 290
B = 46
a = 4.7
da1(min) = 199
da2(min) = 199
Da1(max) = 281
Da2(max) = 284
ra(max) = 2
ra1(max) = 1
Mass = 10.7
Basic load rating: 405000
Rated static load: 615000
Limit speed（Grease lubrication）: 2600
Limit speed（Oil lubrication）: 3700
