詳細(xì)信息
軸承代號(hào): NACHI 7228BDB - 角接觸球軸承（背對(duì)背DB）
軸承尺寸
d = 140D = 250
B = 42
a = 60.8
da1(min) = 154
da2(min) = 147
Da1(max) = 236
Da2(max) = 243
ra(max) = 2.5
ra1(max) = 1
Mass = 8.78
額定動(dòng)負(fù)荷: 320000
額定靜負(fù)荷: 425000
極限轉(zhuǎn)速（潤(rùn)滑脂潤(rùn)滑）: 1600
極限轉(zhuǎn)速（油潤(rùn)滑）: 2200
