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Model: NACHI NNU4926 - Cylindrical roller bearings, cylindrical hole NNU series)>
Bearing Size
d = 130D = 180
B = 50
Fw = 146
Da(max) = 172
da(min) = 138
da(max) = 144
dc(min) = 148
ra(max)= 1.5
Basic load rating: 275000
Rated static load: 565000
Limit speed（Grease lubrication）: 3200
Limit speed（Oil lubrication） 3800
