详细信息
轴承代号: NACHI 7209DB - 角接触球轴承(背对背DB)
轴承尺寸
d = 45D = 85
B = 19
a = 9.3
da1(min) = 52
da2(min) = 50
Da1(max) = 78
Da2(max) = 80
ra(max) = 1
ra1(max) = 0.6
Mass = 0.43
额定动负荷: 64500
额定静负荷: 57500
极限转速(润滑脂润滑): 5500
极限转速(油润滑): 7500