GB/T 271-2017_English: PDF (GB/T271-2017)
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Rolling bearings -- Classification
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GB/T 271-2017
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GB/T 271-2008 | English | 519 |
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Rolling bearings -- Classification
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GB/T 271-2008
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GB/T 271-1997 | English | 519 |
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Rolling bearings--Classification
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Standard ID | GB/T 271-2017 (GB/T271-2017) | Description (Translated English) | Rolling bearings -- Classification | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | J11 | Classification of International Standard | 21.100.20 | Word Count Estimation | 13,191 | Date of Issue | 2017-05-12 | Date of Implementation | 2017-12-01 | Older Standard (superseded by this standard) | GB/T 271-2008 | Quoted Standard | GB/T 276; GB/T 281; GB/T 283; GB/T 285; GB/T 288; GB/T 290; GB/T 292; GB/T 294; GB/T 296; GB/T 297; GB/T 299; GB/T 300; GB/T 301; GB/T 3882; GB/T 4605; GB/T 4663; GB/T 5801; GB/T 5859; GB/T 6445; GB/T 6930; GB/T 16643; GB/T 20056; GB/T 24604; GB/T 25760 | Drafting Organization | Luoyang Bearing Research Institute Co., Ltd., Fujian Yongan Bearing Co., Ltd., China National Accreditation Center for Conformity Assessment, Handan Hongli Bearing Co., Ltd. | Administrative Organization | National Standard Committee on Rolling Bearings (SAC/TC 98) | Proposing organization | China Machinery Industry Federation | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, China National Standardization Administration Committee | Summary | This standard specifies the classification of rolling bearings. This standard applies to the classification of rolling bearing products management. | Standard ID | GB/T 271-2008 (GB/T271-2008) | Description (Translated English) | Rolling bearings. Classification | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | J11 | Classification of International Standard | 21.100.20 | Word Count Estimation | 13,177 | Date of Issue | 2008-02-28 | Date of Implementation | 2008-08-01 | Older Standard (superseded by this standard) | GB/T 271-1997 | Drafting Organization | Luoyang Bearing Research Institute | Administrative Organization | Rolling the National Standardization Technical Committee | Regulation (derived from) | National Standard Approval Announcement 2008 No.3 (Total No.116) | Proposing organization | China Machinery Industry Federation | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | Summary | This standard specifies the classification of rolling bearings. This standard applies to the rolling bearing product category management. | Standard ID | GB/T 271-1997 (GB/T271-1997) | Description (Translated English) | Rolling bearings--Classification | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | J11 | Classification of International Standard | 21.100.20 | Word Count Estimation | 13,197 | Date of Issue | 1997/7/25 | Date of Implementation | 1998/2/1 | Older Standard (superseded by this standard) | GB 271-1987 | Regulation (derived from) | Announcement of Newly Approved National Standards No. 2008 (No. 116 overall) 3 | Proposing organization | Ministry of Machinery Industry of the People Republic of China | Issuing agency(ies) | State Bureau of Technical Supervision |
GB/T 271-2017
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 21.100.20
J 11
Replacing GB/T 271-2008
Rolling bearings - Classification
ISSUED ON. MAY 12, 2017
IMPLEMENTED ON. DECEMBER 1, 2017
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
3. No action is required - Full-copy of this standard will be automatically &
immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 6
4 Rolling bearing structure type classification ... 6
5 Rolling bearing size classification ... 9
Annex A (Normative) Rolling bearing comprehensive classification structure
diagram ... 10
Foreword
This Standard was drafted in accordance with the rules given in GB/T
1.1-2009.
This Standard replaces GB/T 271-2008 Rolling bearings - Classification.
Compared with GB/T 271-2008, the main technical modifications are as
follows.
- added “long face roller bearings” in classification according to roller type
(see 4.2 of this Edition);
- modified the name of “open bearing, closed bearing” to “open type
bearing, closed type bearing”; and modified the definition of closed type
bearing (see 4.7 of this Edition, 4.7 of Edition 2008);
- modified the definitions of separable bearing and un-separable bearing
(see 4.9 of this Edition, 4.9 of Edition 2008);
- added “large bearing” in the classification according to nominal
diameter size (see Clause 5 of this Edition);
- added structure type of some bearings (see Table B.1 of this Edition).
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee
on Rolling Bearings of Standardization Administration of China (SAC/TC 98).
The drafting organizations of this Standard. Luoyang Bearing Research
Institute Co., Ltd., Fujian Yongan Bearing Co., Ltd., National Accreditation
Center for Chinese Conformity Assessment, Handan Hongli Bearing Co., Ltd.
Main drafters of this Standard. Zhang Bowen, Qian Weihua, Ding Liyong, Qin
Zhitao, Wang Lifeng.
Versions of standard substituted by this Standard are.
- GB 271-1964, GB 271-1987, GB/T 271-1997, GB/T 271-2008.
Rolling bearings - Classification
1 Scope
This Standard specifies the classification of rolling bearings.
This Standard is applicable to the classification management of rolling
bearing products.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including
any amendments) applies.
GB/T 276, Rolling bearings - Deep groove ball bearings - Boundary
dimensions
GB/T 281, Rolling bearings - Self-aligning ball bearings - Boundary
dimensions
GB/T 283, Rolling bearings - Cylindrical rolling bearings - Boundary
dimensions
GB/T 285, Rolling bearings - Double row cylindrical roller bearings -
Boundary dimensions
GB/T 288, Rolling bearings - Self-aligning roller bearings - Boundary
dimensions
GB/T 290, Rolling bearings - Needle roller bearings, drawn cup without
inner rings - Boundary dimensions
GB/T 292, Rolling bearings - Angular contact ball bearings - Boundary
dimensions
GB/T 294, Rolling bearings - Three-point and four-point contact ball
bearings - Boundary dimensions
GB/T 296, Rolling bearings - Double row angular contact ball bearings -
Boundary dimensions
GB/T 297, Rolling bearings - Tapered roller bearings - Boundary
dimensions
GB/T 299, Rolling bearings - Metric double row tapered roller bearings -
Boundary dimensions
GB/T 300, Rolling bearings - Four row tapered roller bearings - Boundary
dimensions
GB/T 301, Rolling bearings - Thrust ball bearings - Boundary dimensions
GB/T 3882, Rolling bearings - Insert bearings and eccentric looking collars
- Boundary dimensions
GB/T 4605, Rolling bearings - Thrust needle roller and cage assemblies,
thrust washers
GB/T 4663, Rolling bearings - Cylindrical thrust roller bearings - Boundary
dimensions
GB/T 5801, Rolling bearings - Needle roller bearings, dimension series 48,
49 and 69 - Boundary dimensions and tolerances
GB/T 5859, Rolling bearings - Self-aligning thrust roller bearings -
Boundary dimensions
GB/T 6445, Rolling bearings - Needle roller bearing track rollers -
Boundary dimensions and tolerances
GB/T 6930, Rolling bearings - Vocabulary
GB/T 16643, Rolling bearings - Combined needle roller - Thrust roller
bearings - Boundary dimensions
GB/T 20056, Rolling bearings - Radial needle roller and cage assemblies -
Boundary dimensions and tolerances
GB/T 24604, Rolling bearings - Angular contact thrust ball bearings used
for machine tool screws
GB/T 25760, Rolling bearings - Combined needle roller bearings with
thrust ball bearings - Boundary dimensions
GB/T 25761, Rolling bearings - Combined needle roller bearings with
angular contact ball bearings - Boundary dimensions
GB/T 25768, Rolling bearings - Combined needle roller bearings with
double direction thrust cylindrical roller bearings
b) particular bearing - the bearing particularly used in or mainly used in
specific host or special condition.
4.6 Rolling bearing, according to whether the dimensions conform to the
standard size, is divided into.
a) standard bearing - the bearing that dimensions comply with standard
size;
b) non-standard bearing - the bearing that any size in dimensions does not
comply with the provisions on standard size.
4.7 Rolling bearing, according to whether it has seal or dust cover, is divided
into.
a) open type bearing - the bearing without dust cover and seal;
b) closed type bearing - the bearing with dust cover or seal.
4.8 Rolling bearing, according to the representation unit for dimension size
and tolerance, is divided into.
a) metric bearing - the rolling bearing of which dimension size and
tolerance uses metric unit;
b) inch bearing - the rolling bearing of which dimension size and tolerance
uses inch unit.
4.9 Rolling bearing, according to whether its component can be separated,
is divided into.
a) separable bearing - the bearing of which sub-component can be
separated;
b) un-separable bearing - the bearing of which sub-component cannot be
separated.
4.10 Rolling bearing, according to product extension classification, is
divided into.
a) bearing;
b) combined bearing;
c) bearing unit.
4.11 Rolling bearing, according to its structural shape (e.g., with or without
outer ring, with or without cage, with or without groove as well as the shape of
the ring, the structure of the rib, etc.), can be also divided into many structural
......
GB/T 271-2008
Rolling bearings. Classification
ICS 21.100.20
J11
National Standards of People's Republic of China
Replacing GB/T 271-1997
Rolling classification
Posted 2008-02-28
2008-08-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 271-1997 "Rolling classification."
This standard compared with GB/T 271-1997 main changes are as follows.
--- Increase the definition bearings and bearing units (see Chapter 3);
--- Increasing the general bearing and special bearings classification (see 4.5);
--- Increasing the standard bearing and classification of non-standard bearings (see 4.6);
--- Increased the open and closed bearing bearing classification (see 4.7);
--- Increasing the metric and imperial bearing bearing classification (see 4.8);
--- Increased by product Rolling extended classification (see 4.10);
--- An increase of some type of bearing structure (see Annex B);
--- Modify some reference standard (1997 edition and the first edition chapter 2);
--- Modify the classification according to size range (Chapter 5, 1997 edition and this edition);
--- Revised Appendix A Part Name (1997 edition Appendix A and Appendix Excerpts B);
--- Change the nature of Appendix B (1997 edition and the edition of Appendix B Appendix A).
The Standard Annexes A and B are normative appendix.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee of Rolling (SAC/TC98) centralized.
This standard was drafted. Luoyang Bearing Research Institute, Luoyang Bearing Science & Technology Co., Ltd., Xiangyang Automobile Bearing Co., universal
Qianchao Company Limited.
Drafters of this standard. Guobao Xia, Zhang Lei, Lisu Juan.
This standard replaces the standards previously issued as follows.
--- GB 271-64, GB 271-87, GB/T 271-1997.
Rolling classification
1 Scope
This standard specifies the classification of rolling bearings.
This standard applies to the rolling bearing product category management.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 276-1994 Rolling Deep groove ball bearings Dimensions
GB/T 281-1994 Rolling aligning ball bearings Dimensions
GB/T 283-2007 Rolling Cylindrical roller bearings Dimensions
GB/T 285-1994 bearings - Double row cylindrical roller bearings Dimensions
GB/T 288-1994 Rolling Spherical roller bearings Dimensions
GB/T 290-1998 Rolling Needle roller bearings Dimensions (neq ISO 3245.1997)
GB/T 292-2007 Rolling bearings angular contact ball bearings Dimensions
GB/T 294-1994 bearings - Three point and four-point contact ball bearings Dimensions
GB/T 296-1994 Rolling bearings double row angular contact ball bearings Dimensions
GB/T 297-1994 bearings - Tapered roller bearings Dimensions
GB/T 299-2008 Rolling bearings double row tapered roller bearing Dimensions
GB/T 300-2008 Rolling four-row tapered roller bearing Dimensions
GB/T 301-1995 Rolling Thrust ball bearings Dimensions
GB/T 3882-1995 Rolling bearings, spherical ball bearings and eccentric dimensions (neq ISO 9628.1992)
GB/T 4605-2003 Rolling thrust needle roller and cage assemblies and thrust washers (ISO 3031.2000, NEQ)
GB/T 4663-1994 Rolling thrust cylindrical roller bearings Dimensions
GB/T 5801-2006 Rolling size 48, 49 and 69 series of needle roller bearings - Boundary dimensions and tolerances (ISO 1206.
2001, MOD)
GB/T 5859-2008 Rolling Thrust spherical roller bearings Dimensions
GB/T 6445-2007 Rolling needle roller bearings - Boundary dimensions and tolerances (ISO 7063.2003, MOD)
GB/T 6930-2002 Rolling Vocabulary (ISO 5593.1997, IDT)
GB/T 16643-1996 Rolling thrust needle roller and cylindrical roller bearings Dimensions
GB/T 20056-2006 Rolling bearings Radial needle roller and cage assembly dimensions and tolerances (ISO 3030.1996, MOD)
JB/T 3122-2007 Rolling needle roller and thrust ball bearings Dimensions
JB/T 3123-2007 Rolling needle roller and angular contact ball bearings Dimensions
JB/T 6362-2007 Rolling spindle with two-way thrust angular contact ball bearings
JB/T 6644-2007 Rolling needle roller and thrust cylindrical roller bearings
JB/T 8564-1997 Rolling machine screw thrust angular contact ball bearings
JB/T 8717-1998 Rolling steering with thrust angular contact ball bearings
JB/T 10188-2000 steering knuckle with a thrust bearing
......
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