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Definition: Grease anti-wear performanc¥↕e refers to the ability of greas$>&♦e to prevent wear on lubricated €αcomponents in high-load operating equ₽₽ipment.
① For metal machinery, due to t♥he relative motion of metal surfac¶δ₩δes, friction causes metal t>≈↓δo separate and peel off from the sur✔☆face, resulting in a loss of w®↓eight or changes in the volum¶∏e and dimensions of metal compo•'πnents. This change is called©$$ wear.
② Adding grease between contacting meta♠★l surfaces can reduce surface we∏≤ar.
③ The anti-wear performance of grease ★≥can be measured using a four-≠§→≠ball testing machine, which de∏¶♦termines the degree of wear res'←istance, anti-wear performance, and loa×≈→d-carrying capacity under different p∏ σressure conditions.
④ PB Maximum Non-Seizure Lo↑★↑ad (Oil Film Strength)
PD Welding Load (Extreme ↔"Working Load)
Wear Scar Diameter
Ø Test Standard: SH/T 0202 “Test Method for Ext☆α€>reme Pressure Properties of Grease R™≈≥11; Four-Ball Machine Met& hod”, Equivalent Met®☆★hod: ASTM-D2596
