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Model: NACHI 7310CDB - Angular contact ball bearings (DB) back to back>
Bearing Size
d = 50D = 110
B = 27
a = -4.3
da1(min) = 60
da2(min) = 60
Da1(max) = 100
Da2(max) = 104
ra(max) = 2
ra1(max) = 1
Mass = 1.14
Basic load rating: 122000
Rated static load: 102000
Limit speed（Grease lubrication）: 8000
Limit speed（Oil lubrication）: 11000
