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Model: NACHI 7010DB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 50D = 80
B = 16
a = 10.8
da1(min) = 55
da2(min) = 55
Da1(max) = 75
Da2(max) = 77
ra(max) = 1
ra1(max) = 0.6
Mass = 0.285
Basic load rating: 38500
Rated static load: 40000
Limit speed（Grease lubrication）: 5500
Limit speed（Oil lubrication）: 7500
