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Model: NACHI 7313BDB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 65D = 140
B = 33
a = 26.6
da1(min) = 77
da2(min) = 72
Da1(max) = 128
Da2(max) = 133
ra(max) = 2
ra1(max) = 1
Mass = 2.22
Basic load rating: 170000
Rated static load: 155000
Limit speed（Grease lubrication）: 3200
Limit speed（Oil lubrication）: 4200
