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Model: NACHI 18790/18720 - The imperial tapered roller bearings>
Bearing Size
d = 50.8D = 85
B = 17.462
T = 17.462
C = 13.495
a = 0.7
da(min) = 62
db(max) = 56
Da(min) = 77
Db(min) = 80
r1(min) = 3.5
r2(min) = 1.5
Mass(Cone) = 18790
Mass(Cup) = 18720
Basic load rating: 44000
Basic load rating: 44000
Rated static load: 58500
Limit speed（Grease lubrication）: 4000
Limit speed（Oil lubrication） 5600
