Protocol The LFW-1 is shown in Figure 2 and Figure 3 is a schematic of the operation.
Dead weights load a stationary block against a moving ring through a compound lever system.
When the test ring is moved against the block, frictional force is transmitted horizontally along a tangent to the ring and may be read directly on a pressure gauge. Tests were performed using a conforming block for area contact. LFW-6 thrust washer testing machine. This machine was developed in conjunction with a SPI committee on friction and wear. It permits simulation of a wide variety of operating conditions and produces good reproducibility of results.