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Model: NACHI HM212047/HM212011 - The imperial tapered roller bearings>
Bearing Size
d = 63.5D = 122.238
B = 38.354
T = 38.1
C = 29.718
a = 10.9
da(min) = 87
db(max) = 73
Da(min) = 108
Db(min) = 116
r1(min) = 7
r2(min) = 3.3
Mass(Cone) = HM212047
Mass(Cup) = HM212011
Basic load rating: 187000
Basic load rating: 187000
Rated static load: 243000
Limit speed（Grease lubrication）: 3000
Limit speed（Oil lubrication） 4100
