詳細(xì)信息
軸承代號(hào): NACHI 7221BDB - 角接觸球軸承（背對(duì)背DB）
軸承尺寸
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
額定動(dòng)負(fù)荷: 239000
額定靜負(fù)荷: 267000
極限轉(zhuǎn)速（潤(rùn)滑脂潤(rùn)滑）: 2100
極限轉(zhuǎn)速（油潤(rùn)滑）: 2900
