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GB/T 271-2017Rolling bearings - Classification (English PDF)

滚动轴承分类

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the PRC

Level / Type

National · Recommended

Issue date

May 12, 2017

Implementation date

December 1, 2017

Scope

GB/T 271-2017 is the English-translated version of 滚动轴承分类.

GB/T 271-2017 is the Chinese standard "Rolling bearings - Classification". Its scope clause reads: This Standard specifies the classification of rolling bearings.

This Standard is applicable to the classification management of rolling bearing products.

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Document preview — GB/T 271-2017

National Standard of the People's Republic of China

ICS: 21.100.20
Classification: J 11
Replacing: GB/T 271-2008

Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the PRC

Foreword3
1 Scope4
2 Normative references4
3 Terms and definitions6
4 Rolling bearing structure type classification6
5 Rolling bearing size classification9
diagram10

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 […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

Similar standards

GB/T 271-2008|GB/T 272-2017|GB/T 6930-2002|GB/T 4199-2003|GB/T 307.1-2017|GB/T 273.3-2015

Editions of GB/T 271

Edition	Title	Revision	Status
GB/T 271-2017	Rolling bearings - Classification	fourth revision	Current
GB/T 271-2008	Rolling bearings - Classification	third revision	Superseded
GB/T 271-1997	Rolling bearings - Classification	second revision	Superseded

This page sells the current edition, GB/T 271-2017. Earlier editions are listed for reference only.

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