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Model: NACHI N309 - Cylindrical roller bearing (N series)>
Bearing Size
d = 45D = 100
B = 25
Ew = 86.5
da(min) = 53.5
dc(min) = 60
Da(max) = 91.5
Db(min) = 89
ra(max) = 1.5
ra1(max) = 1.5
Mass = 0.85
Basic load rating: 78500
Rated static load: 77500
Limit speed（Grease lubrication）: 6300
Limit speed（Oil lubrication） 7500
