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Model: NACHI NN3064K - Cylindrical roller bearing, tapered hole NN series)>
Bearing Size
d = 320D = 480
B = 121
Ew = 438
Da(min) = 338
Da(max) = 462
da(min) = 338
da1(min) = 345
ra(max)= 3
Mass = 74
Basic load rating: 1430000
Rated static load: 2750000
Limit speed（Grease lubrication）: 1200
Limit speed（Oil lubrication） 1400
