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Model: NACHI NN3056 - Cylindrical roller bearings, cylindrical hole NN series)>
Bearing Size
d = 280D = 420
B = 106
Ew = 384
Da(min) = 387
Da(max) = 402
da(min) = 298
dc(min) = -
ra(max)= 3
Basic load rating: 1080000
Rated static load: 2080000
Limit speed（Grease lubrication）: 1300
Limit speed（Oil lubrication） 1600
