GB/T 5859-2023 English PDF (GBT5859-2023)

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GB/T 5859-2023: Rolling bearings -- Self-aligning thrust roller bearings -- Boundary dimensions
GB/T 5859-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 21.100.20
CCS J 11
Replacing GB/T 5859-2008
Rolling bearings - Self-aligning thrust roller bearings -
Boundary dimensions
滚动轴承 推力调心滚子轴承 外形尺寸
ISSUED ON: MARCH 17, 2023
IMPLEMENTED ON: OCTOBER 1, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Symbols ... 4
5 Identification codes ... 6
6 Marking ... 6
7 Boundary dimensions ... 6
References ... 11
Foreword
This document was drafted in accordance with the provisions of GB/T 1.1-2020
Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents.
This document replaces GB/T 5859-2008 Rolling bearings - Self-aligning thrust roller
bearings - Boundary dimensions. Compared with GB/T 5859-2008, except for editorial
changes, the main technical changes are as follows:
a) Two chapters “Terms and definitions” and “Identification codes” are added (see
Chapter 3 and Chapter 5);
b) The definitions of some symbols are changed (see Chapter 4, Figure 1, and
Tables 1~3; see Chapter 3, Figure 1, and Tables 1~3 of the 2008 edition);
c) The dimension ranges of self-aligning thrust roller bearings have been
expanded (see Tables 1~3; see Tables 1~3 of the 2008 edition).
Please note that some of the contents of this document may involve patents. The issuing
agency of this document is not responsible for identifying patents.
This document was proposed by China Machinery Industry Federation.
This document shall be under the jurisdiction of the National Technical Committee for
Standardization on Rolling Bearing (SAC/TC98).
Drafting organizations of this document: Wafangdian Bearing Group Co., Ltd.,
Luoyang Bearing Research Institute Co., Ltd., Dalian Metallurgical Bearing Co., Ltd.
The main drafters of this document: Yu Changxin, Wu Fei, Yanping, Du Xiaoyu, Zhang
Xu, Wang Dehui.
The publication of previous versions of this document and the documents it replaces
are as follows:
-- GB 5859-1986, GB/T 5859-1994, GB/T 5859-2008;
-- This is the third revision.
Rolling bearings - Self-aligning thrust roller bearings -
Boundary dimensions
1 Scope
This document specifies the boundary dimensions of self-aligning thrust roller bearings
that comply with GB/T 273.2-2018.
This document is applicable to the design and model selection of self-aligning thrust
roller bearings (hereinafter referred to as “bearings”).
2 Normative references
The following documents contain the provisions which, through normative reference in
this document, constitute the essential provisions of this document. For the dated
referenced documents, only the versions with the indicated dates are applicable to this
document; for the undated referenced documents, only the latest version (including all
the amendments) is applicable to this document.
GB/T 272-2017 Rolling bearings - Identification code
GB/T 274 Rolling bearings - Chamfer dimension - Maximum values
GB/T 6930 Rolling bearings - Vocabulary
3 Terms and definitions
The terms and definitions defined in GB/T 6930 apply to this document.
4 Symbols
The following symbols apply to this document.
Unless otherwise stated, the symbols shown in Figure 1 and the values shown in Tables
1~3 all represent nominal dimensions.
A: The distance from the center of curvature of the raceway surface of the housing
washer to the back face of the shaft washer
B: The height of the joint between the shaft washer and the shaft