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Model: NACHI 3490/3420 - The imperial tapered roller bearings>
Bearing Size
d = 38.1D = 79.375
B = 29.771
T = 29.37
C = 23.813
a = 8.6
da(min) = 52
db(max) = 45.9
Da(min) = 67
Db(min) = 74
r1(min) = 3.6
r2(min) = 3.2
Mass(Cone) = 3490
Mass(Cup) = 3420
Basic load rating: 87400
Basic load rating: 87400
Rated static load: 105000
Limit speed（Grease lubrication）: 4300
Limit speed（Oil lubrication） 6100
