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Model: NACHI NP230 - Cylindrical roller bearing (NP series)>
Bearing Size
d = 150D = 270
B = 45
Ew = 238
db(min) = 164
db(max) = 256
dc(max) = 184
Da(max) = 256
ra(max) = 2.5
ra1(max) = 2.5
Basic load rating: 375000
Rated static load: 490000
Limit speed（Grease lubrication）: 2000
Limit speed（Oil lubrication） 2600
