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Model: NACHI 6238 - Deep groove ball bearings>
Bearing Size
d = 190D = 340
B = 55
da(min) = 208
Da(max) = 322
ra(max) = 3
Mass = 23
Basic load rating: 255000
Rated static load: 282000
Limit speed（Grease lubrication）: 1700
Limit speed（Oil lubrication） 2000
