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Model: NACHI 6908 - Deep groove ball bearings>
Bearing Size
d = 40D = 62
B = 12
da(min) = 44
Da(max) = 58
ra(max) = 0.6
Mass = 0.108
Basic load rating: 13700
Rated static load: 9950
Limit speed（Grease lubrication）: 11000
Limit speed（Oil lubrication） 13000
