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Model: NACHI NNU4948K - Cylindrical roller bearing, tapered hole NNU series)>
Bearing Size
d = 240D = 320
B = 80
Fw = 265
Da(max) = 309
da(min) = 251
da(max) = 262
da1(min) = 254
ra(max)= 2
Mass = 17
Basic load rating: 610000
Rated static load: 1410000
Limit speed（Grease lubrication）: 1700
Limit speed（Oil lubrication） 2000
