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Model: NACHI 687/672 - The imperial tapered roller bearings>
Bearing Size
d = 101.6D = 168.275
B = 41.275
T = 41.275
C = 30.162
a = 2.8
da(min) = 118
db(max) = 112
Da(min) = 149
Db(min) = 160
r1(min) = 3.5
r2(min) = 3.3
Mass(Cone) = 687
Mass(Cup) = 672
Basic load rating: 208000
Basic load rating: 208000
Rated static load: 310000
Limit speed（Grease lubrication）: 2000
Limit speed（Oil lubrication） 2800
