TS ISO 10825-1
Gears - Wear and damage to gear teeth - Part 1: Nomenclature and characteristics
This document provides nomenclature for general modes of gear tooth wear and failure. It classifies, identifies, and describes the most common types of failure and provides information that, in many cases, enables the user to identify failure modes and evaluate the degree or change from original condition.
This document is based on experience with steel gears; however, many of the failure modes discussed apply to gears made from other materials. Not all failure modes that can occur on other types of gears, such as plastic, bronze, or powder metal gears, are included.
The solution to many gear problems requires detailed investigation and analysis by specialists and is beyond the scope of this document.
This document specifies only the terminology intended to help with the identification and reporting of the appearance and conditions of gears after a period of operation. Neither causes nor preventive measures for any condition described are discussed.
In this document, gear refers to both gear wheels and pinions, unless the gear is specifically identified.
This document does not define “gear failure”.
Available Formats:
- Availability: Immediate Download
- Language: English
- License Type: Single User
- Updates: Not Included
- Availability: Request Quote
- Language: English
- License Type: Enterprise / Multi User
- Updates: Included
About This Item
TS ISO 10825-1 is the standard that establishes the terminology used to name, distinguish, and report wear and damage on gear teeth. In gear practice, a shared vocabulary is essential for describing surface changes and visible damage in a consistent way so that inspection records, maintenance notes, and technical discussions refer to the same condition with the same term.
The standard uses gear in the broad sense of both gear wheels and pinions, unless a specific component is identified. It is based on experience with steel gears, but many of the failure modes it discusses also apply to gears made from other materials. At the same time, it does not include every possible failure mode for plastic, bronze, or powder metal gears.
Why nomenclature matters in gear condition assessment
Gear damage often develops through overlapping mechanisms such as wear, surface fatigue, scoring, fracture, or deformation. General technical context: naming the observed condition correctly is the first step in understanding what is happening on the tooth surface. This standard supports that first level of assessment by helping users identify the appearance and condition of gears after operation and judge the degree of change from the original condition.
What this document does and does not cover
- It focuses on terminology for identifying and reporting gear-tooth wear and damage.
- It does not discuss causes or preventive measures.
- It is not limited to steel gears, but its basis is primarily steel-gear experience.
- It does not include every failure mode seen in plastic, bronze, or powder metal gears.
- It does not define the term “gear failure.”
- Publication Date: 8.12.2022
- Standard Status: U (Yürürlükteki Standard/Standard)
- Publisher: TSE
- Document Language: en
- ICS Classification: 01.040.21 Genel Amaçlı Mekanik Sistemler ve Bileşenleri (Terimler); 21.200 Dişli Çarklar
- Pages: 89
- Source Standard: ISO 10825-1:2022
- International Equivalents: ISO 10825-1-EQV
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Summarize with AI
Get quick summaries using your favorite AI engine.
Online Standart Disclaimer
OnlineStandart.com is an authorized reseller of international standards, operating through partnerships with authorized distributors. We do not own the copyrights or trademarks of the standards we sell, including but not limited to those of API, ASHRAE, BSI, SAE, ASTM, IEEE, IEC, ASME, ISO, and others.
All product names, logos, and brands are the property of their respective owners and are used for identification purposes only; their use does not imply endorsement. OnlineStandart.com is not affiliated with or endorsed by any standards development organization unless explicitly stated. The content of this document is for informational purposes only and is intended to promote our licensed reselling services.
Online Standart does not host, distribute, or link to free, unlicensed, or uncertified copies of copyrighted standards. Every document we deliver is a licensed copy obtained through authorized channels and supplied with full licensing documentation. The “Free PDF Download” option on our product pages refers to this free informational document — never to a free copy of any standard.