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What is Lubrication Insights: Viscosity & Macropitting about?

1. The document provides an expert response on lubrication viscosity grades and macropitting prevention for gears. 2. For a gear with a pitchline velocity of 0.71 m/s, ISO VG 320 viscosity oil is adequate up to 50°C, but a more typical operating temperature of 65°C requires ISO VG 680. 3. To prevent macropitting, the expert recommends reducing Hertzian stresses, using clean hardened steel, smooth polished surfaces, adequate lubricant viscosity and hardness, and avoiding excessive surface hardness.

Author

Bruno Ribeiro

Language

EN