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Model: NACHI NJ424 - Cylindrical roller bearing (NJ series)>
Bearing Size
d = 120D = 310
B = 72
Fw = 170
db(min) = 142
db(max) = 288
dd(min) = 190
Da(max) = 288
ra(max) = 4
Basic load rating: 670000
Rated static load: 770000
Limit speed（Grease lubrication）: 1900
Limit speed（Oil lubrication） 2400
