All Brands
Model: NACHI NP228 - Cylindrical roller bearing (NP series)>
Bearing Size
d = 140D = 250
B = 42
Ew = 221
db(min) = 154
db(max) = 236
dc(max) = 171
Da(max) = 236
ra(max) = 2.5
ra1(max) = 2.5
Basic load rating: 310000
Rated static load: 420000
Limit speed（Grease lubrication）: 2400
Limit speed（Oil lubrication） 3000
