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Model: NACHI NP421 - Cylindrical roller bearing (NP series)>
Bearing Size
d = 105D = 260
B = 60
Ew = 220.5
db(min) = 123
db(max) = 242
dc(max) = 147
Da(max) = 242
ra(max) = 3
ra1(max) = 3
Basic load rating: 495000
Rated static load: 555000
Limit speed（Grease lubrication）: 2200
Limit speed（Oil lubrication） 2800
