Tr 14179-2 Pdf: Iso

Understanding ISO/TR 14179-2: Thermal Load-Carrying Capacity of Gears

Rating: 8/10 (Essential for specialists, but casual users may find the math dense and the content slightly redundant with the current ISO 6336-2). iso tr 14179-2 pdf

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ISO/TR 14179-2:2001 provides a technical framework for calculating and measuring the thermal load-carrying capacity of gear units, covering both load-dependent and no-load power losses in various gear types. It establishes methods for determining thermal balance through heat dissipation via housing, radiation, and external coolers, serving as a guideline for operating gearboxes within safe temperature limits. Purchase the official document at ISO Online Browsing Platform. ISO/TR 14179-2:2001 - Gears — Thermal capacity — Part 2 Housing surface area (smooth

Housing surface area (smooth, ribbed, or finned)
Ambient temperature
Airflow velocity (natural vs. forced convection)

ISO/TR 14179-2:2001 (Gears — Thermal capacity — Part 2: Thermal load-carrying capacity) provides a standardized framework for calculating the thermal behavior and cooling requirements of gear units. and external coolers

Oil Sump Temperature: Specifically for splash-lubricated gear units, it provides methods to determine the quasi-stationary temperature in the oil sump. Key Components of Thermal Balance

A. Determination of Power Losses ($P_V$)

The document breaks down efficiency losses with granular detail:

Load-dependent losses: These occur at the gear mesh and in the bearings. They increase as the torque increases.