轴承代号: NACHI 30256 - 公制圆锥滚子轴承
轴承尺寸
d = 280
D = 500
B = 80
T = 89
C = 67
a = -10
da(min) = 302
db(max) = 323
Da(min) = 432
Db(min) = 467
S1(min) = 9
S2(min) = 16
Cone ra(max) = 5
Cup ra(max) = 4
Mass = 66
额定动负荷: 1270000
额定静负荷: 1910000
极限转速（润滑脂润滑）: 620
极限转速（油润滑） 820
