Where gears dip into an oil sump, creating churning heat.
Synthetic oils (like polyalphaolefins or polyglycols) generally feature lower friction coefficients than mineral oils, directly reducing gear mesh losses ( PVzcap P sub cap V z end-sub iso tr 14179-2 pdf
A complete worked example is provided, demonstrating the entire thermal analysis process—from geometry and environmental inputs through power loss calculation, heat dissipation assessment, and final comparison of results. Where gears dip into an oil sump, creating churning heat
: Calculates the expected gear oil sump temperature for any given transmitted power. The document is a globally recognized technical report
The document is a globally recognized technical report titled "Gears — Thermal capacity — Part 2: Thermal load-carrying capacity" . Published by the International Organization for Standardization (ISO), it establishes the standardized mathematical models and experimental procedures used to evaluate how much power a gearbox can safely transmit without overheating .
: Offering an alternative method to calculate individual components of power loss and heat dissipation for all gearbox components.
Technical Reports are reviewed every 3-5 years. As of 2025, the 2001 edition is still current, but always check ISO’s website for confirmations.