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Model: NACHI 7338DB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 190D = 400
B = 78
a = 46.1
da1(min) = 212
da2(min) = 200
Da1(max) = 378
Da2(max) = 390
ra(max) = 4
ra1(max) = 2
Mass = 47.6
Basic load rating: 725000
Rated static load: 1220000
Limit speed（Grease lubrication）: 1100
Limit speed（Oil lubrication）: 1500
