Shaft SLeeve 

        Model SF Compound  Material,accepted steel plate as the base bronze as the middle, but platics as the surface,is the new self-lubricating engineeing material wlich integrate threedifferent materials into one body technologically,It fully develops both the good rigidity of metal and the excellent selflubrication of plastics to remedy the defects both of poor size stability of plastic,and of poor dry friction force of metal ,Therefire this compound material possesses the best propertes of mecnanphysics,ann-grinding etc.    SF-1material is used in condition of less or without oil.It has good wear-resistant function and small friction coefficient.กกกก

   WUxi Taihu Non-Lubrication Shaft Sleeve Co.Ltd