GB/T 24611-2020
Rolling bearings—Damage and failures—Terms，characteristics and causes

Standard No.

GB/T 24611-2020

Language

Chinese

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Lastest

GB/T 24611-2020

Replace

GB/T 24611-2009

Scope

This standard classifies the failure modes that occur in service of rolling bearings made of standard bearing steels. The characteristics, appearance changes, and possible root causes of each failure mode are defined and described, which facilitates the identification of various failure modes based on appearance. For this standard, the following terms are explained as follows: --- "Rolling bearing failure": due to damage, the bearing cannot meet the predetermined design performance requirements or marks the end of service life; --- "In use": the bearing leaves the manufacturer; --- - "Visible features": features that can be observed directly with a magnifying glass or an optical microscope, or can be obtained from photographs, but can only be obtained by non-destructive methods. This standard only considers the characteristic forms and failure modes of appearance changes that have a well-defined appearance and can be attributed to a specific cause with a high degree of certainty, and describe particularly important features that reflect bearing changes and failures. The various failure modes are illustrated with photographs and diagrams, and the most common causes are given. If the root cause cannot be reliably determined by inspection and characterization of the visible features given in this standard, additional investigation is considered. These methods are summarized in A.3 of Appendix A, and may involve, for example, the use of destructive methods to obtain cross-sections, metallographic analysis by optical microscopy or electron microscopy, and chemical and spectroscopic analysis. These professional methods are beyond the scope of this standard. In general, it is recommended to use the failure mode term given in the heading of the clause, while suitable other expressions or synonyms describing its sub-modes are given and explained in A.4. Examples of rolling bearing failures and descriptions of failure causes and suggested improvement measures are given in A.2.

GB/T 24611-2020 Referenced Document

• ISO 5593 Rolling bearings — Vocabulary*， 2023-02-28 Update

GB/T 24611-2020 history

• 2020 GB/T 24611-2020 Rolling bearings—Damage and failures—Terms，characteristics and causes
• 2009 GB/T 24611-2009 Rolling bearings.Damage and failures.Terms,characteristics and causes