轴承代号: NACHI 745A/742 - 英制圆锥滚子轴承
轴承尺寸
d = 69.85
D = 150.089
B = 46.672
T = 44.45
C = 36.512
a = 12
da(min) = 88
db(max) = 82
Da(min) = 134
Db(min) = 142
r1(min) = 3.5
r2(min) = 3.3
Mass(Cone) = 745A
Mass(Cup) = 742
额定动负荷: 252000
额定静负荷: 345000
极限转速（润滑脂润滑）: 2400
极限转速（油润滑） 3200
