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Model: NACHI 5204NS - One-side sealed double row angular contact ball bearings>
Bearing Size
d = 20D = 47
B = 20.6
da(min) = 26
Da(max) = 41
ra(max) = 1
Mass = 0.12
Basic load rating: 20000
Rated static load: 12700
Limit speed（Grease lubrication）: 10000
Limit speed（Oil lubrication）: 14000
