These materials consist of metal backing bonded to a porous bronze sintered layer with PTFE based Polymer bearing layer.The metal backing provides mechanical strength, while the bronze sinter layer provides a strong mechanical bonding between the backing and the bearing lining,  the PTFE based polymer offers exceptionally low friction even under dry condition and the thermoplastic based polymer is generally designed to operate with marginal lubrication.

Bi-metallic composite bearing material is steel shell backed with low friction and excellent wear resistance bonze powder as bearing layer, the designed oil pockets, grooves and holes are suitable for lubricated application to improve the PV value. The bearing layers include lead bronze, lead-free bronze and lead-free with solid lubricant for high performance.

These bearings are wrapped from a cold formed homogenous bronze (CuSn8), which can achieve exceptional material properties. According to various lubrication conditions, we can provide diamond shaped lubrication indents (grease) and incorporate holes (oil), these designs can rapidly build up a lubrication film at the start of movement and thereafter reduce the running friction.

The wear resistance metal back with the solid lubricants can continuously provide lubricating source during the bearing operation to achieve the self-lubricating feature. With the combination of heavy load and impact resistance of the metal and low friction factor of the non-metal, this material is good for the various working conditions.

Sintered Bronze bearings are all self-lubricating and maintenance free. The sintered bronze bushings consist of a porous bronze matrix impregnated with lubricant. The permissible sliding velocity for sintered bronze bushings is very high, which makes the bushings suitable for rotating applications.

Locking washers are simple, stable and reliable fastening elements. The washer engages a keyway in the shaft and locks the nut in position if one of the tabs is bent over into.