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Model: NACHI 3984/3920 - The imperial tapered roller bearings>
Bearing Size
d = 66.675D = 112.713
B = 30.048
T = 30.163
C = 23.813
a = 4.3
da(min) = 88
db(max) = 76
Da(min) = 99
Db(min) = 106
r1(min) = 3.6
r2(min) = 3.2
Mass(Cone) = 3984
Mass(Cup) = 3920
Basic load rating: 111000
Basic load rating: 111000
Rated static load: 164000
Limit speed（Grease lubrication）: 2800
Limit speed（Oil lubrication） 4000
