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Model: NACHI 30228 - Metric tapered roller bearings>
Bearing Size
d = 140D = 250
B = 42
T = 45.75
C = 36
a = -1.25
da(min) = 154
db(max) = 157
Da(min) = 215
Db(min) = 237
S1(min) = 10
S2(min) = 12
Cone ra(max) = 3
Cup ra(max) = 2.5
Mass = 5.2
Basic load rating: 370000
Basic load rating: 370000
Rated static load: 490000
Limit speed（Grease lubrication）: 1400
Limit speed（Oil lubrication） 1900
