This document specifies the specifications and grades, technical requirements, inspection rules, as well as marking, packaging, transportation, storage of silicon nitride balls; describes the corresponding test methods. This document is applicable to silicon nitride balls.
Basic Data
Standard ID
GB/T 31703-2025 (GB/T31703-2025)
Description (Translated English)
Ceramic ball bearings - Silicon nitride balls
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
Q32
Classification of International Standard
81.060.30
Word Count Estimation
11,179
Date of Issue
2025-12-02
Date of Implementation
2026-07-01
Older Standard (superseded by this standard)
GB/T 31703-2015
Issuing agency(ies)
State Administration for Market Regulation, Standardization Administration of China
