●  主体直径58 mm，孔径12 mm。

The main diameter 58 mm, diameter 12 mm.

●  体积小，质量轻，结构紧凑，安装方便

Small volume, light weight, compact structure,

convenient installation

●  应用于数控机床主轴等及其它工控领域

Applied to the main shaft of CNC machine tool

 and other industrial fields