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Model: NACHI 6821 - Deep groove ball bearings>
Bearing Size
d = 105D = 130
B = 13
da(min) = 110
Da(max) = 125
ra(max) = 1
Mass = 0.325
Basic load rating: 19900
Rated static load: 21900
Limit speed（Grease lubrication）: 4500
Limit speed（Oil lubrication） 5500
