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Model: NACHI 7215DB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 75D = 130
B = 25
a = 17.1
da1(min) = 84
da2(min) = 80
Da1(max) = 121
Da2(max) = 124.6
ra(max) = 1.5
ra1(max) = 1
Mass = 1.23
Basic load rating: 129000
Rated static load: 137000
Limit speed（Grease lubrication）: 3400
Limit speed（Oil lubrication）: 4700
