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Model: NACHI NNU4920K - Cylindrical roller bearing, tapered hole NNU series)>
Bearing Size
d = 100D = 140
B = 40
Fw = 113
Da(max) = 133.5
da(min) = 106.5
da(max) = 111
da1(min) = 110
ra(max)= 1
Mass = 1.77
Basic load rating: 155000
Rated static load: 305000
Limit speed（Grease lubrication）: 4200
Limit speed（Oil lubrication） 5000
