GB/T 21559.1-2023: Rolling bearings - Linear motion rolling bearings - Part 1: Dynamic load ratings and rating life

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Scope

This document specifies the calculation methods of the basic dynamic load ratings and
basic rating life of linear motion rolling bearings, as well as the calculation methods of
the life of linear motion rolling bearings and the conditions required for reliable life
calculations.
This document applies to linear motion rolling bearings made of contemporary,
commonly used, high quality hardened bearing steel, manufactured according to good
processing methods, and of which the shape of the rolling contact surfaces is basically
of conventional design.
This document does not apply to designs where the rolling elements operate directly on
the smooth surface of the mechanical equipment, unless the surface is equivalent in all
aspects to the raceway of the linear motion rolling bearing component it replaces.

Basic Data

Standard ID	GB/T 21559.1-2023 (GB/T21559.1-2023)
Description (Translated English)	Rolling bearings - Linear motion rolling bearings - Part 1: Dynamic load ratings and rating life
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J11
Classification of International Standard	21.100.20
Word Count Estimation	20,247
Date of Issue	2023-05-23
Date of Implementation	2023-12-01
Older Standard (superseded by this standard)	GB/T 21559.1-2008
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration