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Model: NACHI N308 - Cylindrical roller bearing (N series)>
Bearing Size
d = 40D = 90
B = 23
Ew = 77.5
da(min) = 48.5
dc(min) = 55
Da(max) = 81.5
Db(min) = 80
ra(max) = 1.5
ra1(max) = 1.5
Mass = 0.65
Basic load rating: 58500
Rated static load: 57000
Limit speed（Grease lubrication）: 6700
Limit speed（Oil lubrication） 8000
