GB/T 31703-2025 Active National standards

GB/T 31703-2025 Ceramic ball bearings—Silicon nitride balls

Publish Date: 2025-12-02 Implement Date: 2026-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 31703-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Special ceramics

ICS Name: High-end ceramics

Publish Date: 2025-12-02

Implement Date: 2026-07-01

Pages: 16 pages

Scope

This document specifies the specifications and grades of silicon nitride balls, technical requirements, inspection rules, and marking, packaging, transportation, and storage, and describes the corresponding test methods.
This document is applicable to silicon nitride balls.

Development Information

Word Count: 17 Thousand words Pages: 16 pages

Replace the following standards

GB/T 31703-2015 Ceramic ball bearings—Silicon nitride balls

Referenced Standards

GB/T 308.2-2010 Rolling bearings—Balls—Part 2:Ceramic balls GB/T 6569-1986 Testing method for flexural strength of high performance ceramics GB/T 6569-2006 Fine ceramics(advanced ceramics,advanced technical ceramics)—Test method for flexural strength of monolithic ceramics at room temperature GB/T 10610-1998 Geometrical product Specifications(GPS)—Surface texture:Profile method—Rules and procedures for the assessment of surface texture GB/T 10610-2009 Geometrical Product Specifications(GPS)—Surface texture:Profile method—Rules and procedures for the assessment of surface texture GB/T 10700-2006 Test methods for elastic modul of fine ceramics (advanced ceramics, advanced technical ceramics)—Bending method GB/T 16534-1996 Test method for Vickers hardness of high performance ceramics GB/T 16534-2009 Fine ceramics(advanced ceramics,advanced technical ceramics)—Test method for hardness of monolithic ceramics at room temperature GB/T 16535-1996 Test method for linear thermal expansion of high performance ceramics GB/T 16535-2008 Fine ceramics(advanced ceramics,advanced technical ceramics)—Test method for linear thermal expansion of monolithic ceramics by push-rod technique GB/T 25995-2010 Test methods for density and apparent porosity of fine ceramics GB/T 34891-2017 Rolling bearings—Parts made from high-carbon chromium bearing steels—Specifications for heat treatment GB/T 41605-2022 Silicon nitride materials for rolling bearing balls—Test method for fracture resistance at room temperature—Indentation fracture (IF) method JC/T 2172-2013 The test methods for the elastic modulus, shear modulus, and Poisson's ratio of fine ceramics - Impulse excitation method

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