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Model: NACHI NNU4964K - Cylindrical roller bearing, tapered hole NNU series)>
Bearing Size
d = 320D = 440
B = 118
Fw = 359
Da(max) = 427
da(min) = 333
da(max) = 335
da1(min) = 340
ra(max)= 2.5
Mass = 49.6
Basic load rating: 1270000
Rated static load: 3050000
Limit speed（Grease lubrication）: 1200
Limit speed（Oil lubrication） 1400
