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Model: NACHI 45290/45221 - The imperial tapered roller bearings>
Bearing Size
d = 57.15D = 104.775
B = 30.958
T = 30.162
C = 23.812
a = 8
da(min) = 68
db(max) = 65
Da(min) = 95
Db(min) = 99
r1(min) = 2.3
r2(min) = 0.8
Mass(Cone) = 45290
Mass(Cup) = 45221
Basic load rating: 131000
Basic load rating: 131000
Rated static load: 171000
Limit speed（Grease lubrication）: 3500
Limit speed（Oil lubrication） 4700
