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Model: NACHI 7015DB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 75D = 115
B = 20
a = 17.4
da1(min) = 81
da2(min) = 81
Da1(max) = 109
Da2(max) = 111
ra(max) = 1
ra1(max) = 0.6
Mass = 0.695
Basic load rating: 70500
Rated static load: 83000
Limit speed（Grease lubrication）: 3800
Limit speed（Oil lubrication）: 5000
