详细信息
轴承代号: NACHI 7221BDB - 角接触球轴承(背对背DB)
轴承尺寸
d = 105D = 190
B = 36
a = 44
da1(min) = 117
da2(min) = 112
Da1(max) = 178
Da2(max) = 183
ra(max) = 2
ra1(max) = 1
Mass = 3.93
额定动负荷: 239000
额定静负荷: 267000
极限转速(润滑脂润滑): 2100
极限转速(油润滑): 2900