詳細(xì)信息
軸承代號(hào): NACHI 7004DB - 角接觸球軸承（背對(duì)背DB）
軸承尺寸
d = 20D = 42
B = 12
a = 2.9
da1(min) = 24
da2(min) = 24
Da1(max) = 38
Da2(max) = 40
ra(max) = 0.6
ra1(max) = 0.3
Mass = 0.079
額定動(dòng)負(fù)荷: 16700
額定靜負(fù)荷: 12100
極限轉(zhuǎn)速（潤滑脂潤滑）: 12000
極限轉(zhuǎn)速（油潤滑）: 16000
