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Model: NACHI 778/772 - The imperial tapered roller bearings>
Bearing Size
d = 92.075D = 180.975
B = 48.006
T = 47.625
C = 38.1
a = 8.1
da(min) = 114
db(max) = 107
Da(min) = 161
Db(min) = 168
r1(min) = 3.5
r2(min) = 3.3
Mass(Cone) = 778
Mass(Cup) = 772
Basic load rating: 278000
Basic load rating: 278000
Rated static load: 415000
Limit speed（Grease lubrication）: 2000
Limit speed（Oil lubrication） 2700
