TN=塑料保持架，允许工作温度：120°C连续；180°C短期。

1）最小的轴向负荷，Fa=Cr(轴向）的1％到2%。

2）脂润滑极限转速为表列数值的60％。

3）内圈和止动环必须分别订购。

The axial cages are made of plastic,permissible operating temperature:120°C(continuous operation).

1)Minimum axial load Fa=1%to2% of the axial dynamic load rating C.

2)Limiting speed oil lubrication.For grease lubrication,60% of the values given in the table is permissible.

3)lnner rings and snag ring grooves must be orderd sepately.