1.The whole bellow is made of stainless steel with excellent corrosion resistance.

 2.Laser welding is used between bellows and shaft sleeve in order to reduce rotary clearance in transmission process .This structure is suitable for positive and negative rotation.

 3.The bellow structure will be more effective for radial,angular and axial deviation compensation.

 4.The expansion sleeve structure is designed to ensure the firm link between the shaft and the shaft.

 5.This product is special designed for transmisson of CNC machine tools.