SRH12 Timken Ring‑Block Friction‑Wear Tester for Lubricant Extreme‑Pressure Performance Test Also referred to as a Timken test rig, this equipment gauges the load‑bearing capability of different lubricants‑including liquid lubricating oils, greases, and solid lubricant films‑under defined lab conditions. It identifies the highest test load a lubricant can sustain before its protective oil film fails. Built to comply with the national standard SH/T0203‑1992 for testing extreme