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Model: NACHI 63/28 - Deep groove ball bearings>
Bearing Size
d = 28D = 68
B = 18
da(min) = 35
Da(max) = 61
ra(max) = 1
Mass = 0.287
Basic load rating: 26800
Rated static load: 14000
Limit speed（Grease lubrication）: 10000
Limit speed（Oil lubrication） 12000
