SF-1 Carbon Steel self-lubricating bearings used high quality low-carbon steel 

plate as base, sintered porous bronze as  its  interlayer and  the Compound of 

PTFE and Lead as  its surface.  It offers  the property of good self-lubrication, 

low wear, low friction good sliding characteristics, low noise. It has been widely 

applied  to various mechanical sliding positions, such as  textile machinery, 

printing machinery, hydraulic pressure  transit vehicle,  tobacco machinery, 

gymnastic instrument and agricultural machinery etc.