nsk 轴承图纸中CR表示什么意思

2025-03-03 11:22:18
推荐回答(1个)
回答1:

您好
您碰到的是不是像这样的一些型号后缀
打个比方,如:
7005ctynsulp4
像这类轴承属于
角接触球轴承
1.7005是整体型号(根据尺寸计算出来的)
2.
c
表示接触角
一般轴承接触角有以下几种
a
角度
接触角为
30°
b
角度
接触角为
40°
c
角度
接触角为
15°
ac或e或a5角度
接触角为
25°
3.
就是问题中的
tyn
tyn是轴承保持器的一个型号标示
这里tyn叫法滚动体导聚酰胺树脂保持器
一般叫法为
尼龙保持器
4.
su
为组合标示
组合标示有以下几种
su
万能组合单个装
du
万能组合对装
db
背对背(对装)
dbd
背对背
三列装
dbb
背对背四列装
df
面对面(对装)
面对面的
3,4列同上
dfd
dff
dt
并列组合(对装)
同上
dtd
dtt
5.l
标示预压负荷量
l
标示轻预压负荷量
m
标示中预压负荷量
h
标示
重预压负荷量
el
标示
微预压负荷量
6.
p4
p4标示轴承精度等级
角接触一般精度等级在
p4和
p5级
p4精度要高于p5,所以价格也高点
当然其他精度等级的也有,但角接触的除了p4,p5的其他精度等级的比较少见
纯手工打字.
如果可以的话,麻烦给个采纳
谢谢

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