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Model: NACHI NP204 - Cylindrical roller bearing (NP series)>
Bearing Size
d = 20D = 47
B = 14
Ew = 40
db(min) = 25
db(max) = 42
dc(max) = 29
Da(max) = 41
ra(max) = 1
ra1(max) = 0.6
Basic load rating: 15400
Rated static load: 12700
Limit speed（Grease lubrication）: 15000
Limit speed（Oil lubrication） 18000
