GB/T 10095.1-2022 PDF English
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Cylindrical gears - ISO system of flank tolerance classification - Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth
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| GB/T 10095.1-2008 | English | 145 |
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Cylindrical gears -- System of accuracy -- Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth
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| GB/T 10095.1-2001 | English | RFQ |
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Cylindrical gears -- System of accuracy -- Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth
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| GB/T 10095-1988 | English | 1030 |
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Accuracy of involute cylindrical gears
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GB/T 10095.1-2022: Cylindrical gears - ISO system of flank tolerance classification - Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT10095.1-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 21.200
CCS J 17
GB/T 10095.1-2022 / ISO 1328-1.2013
Replacing GB/T 10095.1-2008
Cylindrical gears - ISO system of flank tolerance
classification - Part 1.Definitions and allowable values of
deviations relevant to flanks of gear teeth
(ISO 1328-1.2013, IDT)
Issued on. OCTOBER 12, 2022
Implemented on. OCTOBER 12, 2022
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
Introduction... 5
1 Scope... 6
2 Normative references... 7
3 Terms, definitions and symbols... 8
3.1 Fundamental terms and symbols... 8
3.2 General dimensions... 12
3.3 Pitch deviations... 15
3.4 Profile deviations... 16
3.5 Helix deviations... 21
4 Application of the ISO flank tolerance classification system... 25
4.1 General... 25
4.2 Geometrical parameters to be verified... 25
4.3 Equipment verification and uncertainty... 27
4.4 Considerations for elemental measurements... 27
4.5 Specification of gear flank tolerance requirements... 33
4.6 Acceptance and evaluation criteria... 34
4.7 Presentation of data... 35
5 Tolerance values... 35
5.1 General... 35
5.2 Use of formulae... 36
5.3 Tolerance formulae... 36
Annex A (Normative) Zone-based tolerance evaluation... 39
Annex B (Normative) Evaluation of profile and helix deviations using the second order
analysis method... 43
Annex C (Informative) Profile and helix data filtering... 47
Annex D (Informative) Sector pitch deviation... 49
Annex E (Normative) Allowable values of runout... 53
Annex F (Informative) Single flank composite testing... 56
Annex G (Informative) Adjacent pitch difference, fu... 62
Bibliography... 64
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020
Directives for Standardization - Part 1.Rules for the Structure and Drafting of
Standardizing Documents.
This document is Part 1 of GB/T 10095 Cylindrical gears - ISO system of flank
tolerance classification. The following parts have been issued for GB/T 10095.
-- Part 1.Definitions and allowable values of deviations relevant to flanks of gear
teeth;
-- Part 2.Definitions and allowable values of deviations relevant to radial composite
deviations and runout information.
This document replaces GB/T 10095.1-2008, Cylindrical gears - System of accuracy -
Part 1.Definitions and allowable values of deviations relevant to corresponding flanks
of gear teeth. Compared with GB/T 10095.1-2008, in addition to structural adjustments
and editorial changes, the main technical changes of this document are as follows.
a) Change the scope of application (see Clause 1; Clause 1 of the 2008 edition);
b) Change the formulae for calculating the flank tolerance (see 5.3; Clause 6 of the
2008 edition);
c) Add the analysis method of modified profile and helix (see Annex A and Annex
B);
d) Add the calculation of the allowable values of runout (see Annex E).
This document is identical to ISO 1328-1.2013 Cylindrical gears - ISO system of flank
tolerance classification - Part 1.Definitions and allowable values of deviations
relevant to flanks of gear teeth.
Please note that some of the contents of this document may involve patents. The issuing
organization of this document is not responsible for identifying patents.
This document shall be under the jurisdiction of National Technical Committee 52 on
Gear of Standardization Administration of China (SAC/TC 52).
Drafting organizations of this document. Zhengzhou Research Institute of Mechanical
Engineering Co., Ltd., Beijing University of Technology, Ningbo ZD Leader
Transmission Equipment Co., Ltd., Zhejiang Shuanghuan Driveline Co., Ltd., Nanjing
High Speed & Accurate Gear (Group) Co., Ltd., Shaanxi Faster Automotive Drive
Group Co., Ltd., Jiangsu Guomao Reducer Co., Ltd., Zhejiang Fore Intelligent
Technology Co., Ltd., Shenzhen Zhaowei Machinery & Electronic Co., Ltd., Ningbo
Xiasha Gears Co., Ltd., Henan University of Science and Technology, Chongqing
University, Zhengzhou TSC Offshore Equipment Co., Ltd., Harbin Jingda Measuring
Instruments Co., Ltd., Hunan Panco Transmission Technology Co., Ltd., Dongguan
Xinghuo Gears Co., Ltd., China Railway Engineering Services Co., Ltd.
Main drafters of this document. Shi Zhaoyao, Wang Zhigang, Yu Bo, Wang Wei, Fan
Ruili, Cen Guojian, Wu Changhong, Wang Zhengbing, Yan Jianbo, Huang Xiaoying,
Li Qing, Wang Youli, Xin Dong, Xie Guiping, Wang Xiaoyi, Zhou Guangcai, Xu Jiake,
Jing Daiyun, Tong Aijun, Kou Zhida, Chen Yonghong, Wang Jianmin, Zhou Changjiang,
Li Haixia, Ji Xieru, Ren Jihua, Zhuang Yuanshun, Zhao Fengxia, Xu Ke.
The previous versions of this document and the documents which are replaced by this
document are as follows.
-- It was first released in 1988 as GB/T 10095-1988;
-- It was first revised in 2001 and published in parts, where this document
corresponded to GB/T 10095.1-2001, Cylindrical gears - System of accuracy -
Part 1.Definitions and allowable values of deviations relevant to corresponding
flanks of gear teeth; it was second revised in 2008;
-- This is the third revision.
1 Scope
This document establishes a tolerance classification system relevant to manufacturing
and conformity assessment of tooth flanks of individual cylindrical involute gears. It
specifies definitions for gear flank tolerance terms, the structure of the flank tolerance
class system, and allowable values.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this
document and are indispensable to its application. For dated references, only the version
corresponding to that date is applicable to this document; for undated references, the
latest version (including all amendments) is applicable to this document.
ISO 701, International gear notation - Symbols for geometrical data
Note. GB/T 2821-2003 Gear - Symbols for geometrical data (ISO 701.1998, IDT)
3 Terms, definitions and symbols
For the purposes of this document, the following terms, definitions and symbols apply.
Portion of the tooth flank along which the probe is in contact during the profile
measurement, which shall include the profile control diameter (3.4.1.1) and the tip form
diameter (3.4.1.2).
4 Application of the ISO flank tolerance classification system
Specification of design profile, design helix and pitch requires the definition of an
appropriate reference axis of rotation, called the datum axis. It is defined by
specification of datum surfaces. See ISO/TR 10064-3.
In this document, the tolerance direction varies with the given elemental parameter.
Original measurement values shall be compensated for if the actual measurement
direction and the tolerance direction specified for the given parameter are different. See
4.4.8.2, 4.4.8.4 and 4.4.8.6 for sign conventions and the reporting of values.
5 Tolerance values
The step factor between two consecutive classes is √2.Values of the next higher (or
lower) class are determined by multiplying (or dividing) by √2.The required value for
any flank tolerance class may be determined by multiplying the unrounded calculated
value for class 5 by √2A-5 where A is the number of the required flank tolerance class.
Total helix tolerance, FβT, shall be calculated as given by Formula (12) using unrounded
tolerance values for helix slope and helix form.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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