ISO/TR 14179‑2:2001 is a (TR), not a full International Standard, published by the International Organization for Standardization (ISO). It is the second part of a two‑document series on gear thermal capacity, the first part being ISO/TR 14179‑1:2001 (Rating gear drives with thermal equilibrium at 95 °C sump temperature).
: It combines theoretical considerations for individual loss components (gears, bearings, seals) with experimental investigations. iso tr 14179-2 pdf
AGMA guidelines recommend the maximum oil sump temperature should not exceed 200°F (approximately 94°C), aligning closely with ISO specifications. ISO/TR 14179‑2:2001 is a (TR), not a full