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Model: NACHI 99550/99100 - The imperial tapered roller bearings>
Bearing Size
d = 139.7D = 254
B = 66.675
T = 66.675
C = 47.625
a = 12.2
da(min) = 170
db(max) = 156
Da(min) = 227
Db(min) = 238
r1(min) = 7
r2(min) = 3.3
Mass(Cone) = 99550
Mass(Cup) = 99100
Basic load rating: 525000
Basic load rating: 525000
Rated static load: 855000
Limit speed（Grease lubrication）: 1300
Limit speed（Oil lubrication） 1800
