轴承代号: NACHI 74550/74850 - 英制圆锥滚子轴承
轴承尺寸
d = 139.7
D = 215.9
B = 47.625
T = 47.625
C = 34.925
a = -2.2
da(min) = 158
db(max) = 151
Da(min) = 196
Db(min) = 208
r1(min) = 3.5
r2(min) = 3.3
Mass(Cone) = 74550
Mass(Cup) = 74850
额定动负荷: 320000
额定静负荷: 565000
极限转速（润滑脂润滑）: 1500
极限转速（油润滑） 2100
