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Model: NACHI H - 2580/H - 2520 - The imperial tapered roller bearings>
Bearing Size
d = 31.75D = 66.421
B = 25.357
T = 25.4
C = 20.638
a = 9.4
da(min) = 38.5
db(max) = 37.5
Da(min) = 57
Db(min) = 62.5
r1(min) = 0.8
r2(min) = 3.2
Mass(Cone) = H-2580
Mass(Cup) = H-2520
Basic load rating: 71400
Basic load rating: 71400
Rated static load: 85100
Limit speed（Grease lubrication）: 5000
Limit speed（Oil lubrication） 7000
