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Model: NACHI 5210 - Open type double row angular contact ball bearings>
Bearing Size
d = 50D = 90
B = 30.2
da(min) = 57
Da(max) = 83
ra(max) = 1
Mass = 0.67
Basic load rating: 54500
Rated static load: 44500
Limit speed（Grease lubrication）: 5000
Limit speed（Oil lubrication）: 6700
