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Model: NACHI 7330DB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 150D = 320
B = 65
a = 35.3
da1(min) = 168
da2(min) = 159
Da1(max) = 302
Da2(max) = 311
ra(max) = 3
ra1(max) = 1.5
Mass = 25.1
Basic load rating: 535000
Rated static load: 765000
Limit speed（Grease lubrication）: 1400
Limit speed（Oil lubrication）: 1800
