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GB/T 307.4-2017Rolling bearings -- Thrust bearings -- Geometrical product specifications (GPS) and tolerance values (English PDF)

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

Level / Type

National · Recommended

Issue date

November 1, 2017

Implementation date

May 1, 2018

Scope

GB/T 307.4-2017 (Rolling bearings -- Thrust bearings -- Geometrical product specifications (GPS) and tolerance values) is available as an English-translated PDF.

GB/T 307.4-2017 — This part of GB/T 307 specifies the dimensional characteristics of the thrust bearing, the limit deviation from the nominal size and the tolerance value to limit the thrust. The interface of the bearing (except for chamfering). The nominal form factor is given in ISO 104 [1]. This section does not apply to certain special types of thrust bearings (such as thrust needle roller bearings) or thrust bearings used in special occasions (such as special Thrust precision bearings). The tolerances of these bearings are given in the corresponding standards. The chamfer size limit is given in ISO 582 [3].

Document preview — GB/T 307.4-2017

National Standard of the People's Republic of China

ICS: 21.100.20
Classification: J 11
Replacing: GB/T 307.4-2012

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 symbol
5 Limit deviation and tolerance value
5.1 General
5.2 Ordinary tolerances

Foreword

GB/T 307 is divided into four parts.

---GB/T 307.1 Rolling bearing radial bearing product geometry specification (GPS) and tolerance values;

---GB/T 307.2 Principles and methods for measurement and inspection of rolling bearings;

---GB/T 307.3 General technical rules for rolling bearings;

---GB/T 307.4 Rolling bearing thrust bearing product geometry specification (GPS) and tolerance values.

This part is the fourth part of GB/T 307.

This part is drafted in accordance with the rules given in GB/T 1.1-2009.

This part replaces GB/T 307.4-2012 "Rolling bearing tolerances Part 4. Thrust bearing tolerances", and GB/T 307.4-

Compared with.2012, the main technical changes are as follows.

---Modified standard name (see cover and front page, cover and front page of.2012 edition);

---Modified the meaning and representation of the symbol (see Chapter 4, Chapter 4 of the.2012 edition);

--- Added pattern annotation (see Figure 1 ~ Figure 4);

--- It is clear that the tolerance value of Si does not apply to the central shaft ring (see Table 2, Table 4, Table 6, Table 8, Table 1, Table 3, Table 5, Table 7 of the.2012 edition);

--- Added four appendices and references (see Appendix A ~ Appendix D and references).

This part uses the translation method equivalent to ISO .199.2014 "Rolling bearing thrust bearing product geometry technical specification (GPS) and public

Difference.

The documents of our country that have a consistent correspondence with the international documents referenced in this part are as follows.

---GB/T 6930-2002 Rolling Bearing Vocabulary (ISO 5593.1997, IDT)

This part was proposed by the China Machinery Industry Federation.

This part is under the jurisdiction of the National Rolling Bearing Standardization Technical Committee (SAC/TC98).

This section drafted by. Luoyang Bearing Research Institute Co., Ltd., Zhangzhou Meiya Special Bearing Factory, Shanghai Tianan Bearing Co., Ltd.

Introduction

This part is the geometry of the mechanical parts specified in the Product Geometric Specifications (GPS) system (see ISO /T R14638 [10] Master Plan)

Prime standard.

Unless otherwise specified, the basic principles of ISO /GPS given in ISO 8015 [7] apply to this part, given in ISO 14253-1 [8].

The default principles apply to the technical specifications established in accordance with this section.

It is recommended to consider the relationship between functional requirements and measurement methods and measurement uncertainty. The traditional measurement method is ISO 1132-

A description is given in 2[5], and measurement uncertainty is recommended to focus on ISO 14253-2 [9].

Rolling bearing thrust bearing

Product Geometric Specifications (GPS) and tolerance values

1 Scope

This part of GB/T 307 specifies the dimensional characteristics of the thrust bearing, the limit deviation from the nominal size and the tolerance value to limit the thrust.

The interface of the bearing (except for chamfering). The nominal form factor is given in ISO 104 [1].

This section does not apply to certain special types of thrust bearings (such as thrust needle roller bearings) or thrust bearings used in special occasions (such as special

Thrust precision bearings). The tolerances of these bearings are given in the corresponding standards.

The chamfer size limit is given in ISO 582 [3].

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

ISO 5593 Rolling Bearing Vocabulary (Rolingbearings-Vocabulary)

ISO 14405-1 Geometrical Product Specifications (GPS) Dimensional Tolerance Part 1. Linear Dimensions (Geometricalproduct

Specifications(GPS)-Dimensionaltolerancing-Part 1.Linearsizes)

ISO /T S17863 Product Geometry Specification (GPS) Geometric tolerances for moving components (Geometricalproductspecifica-

Tion(GPS)-Geometricaltolerancingofmoveableassemblies)

3 Terms and definitions

The terms and definitions defined by ISO 5593, ISO 14405-1 and ISO /T S17863 apply to this document.

4 symbol

To indicate the application of the ISO /GPS system, ie ISO 8015 [7], the technical product documentation (as shown) should contain dimensional characteristics,

These feature-related dimensional specifications are described in Table 1 and Figures 1 through 4.

The description of the symbols is consistent with the GPS terminology; see Appendix A for the relationship to traditional terms.

The tolerance values associated with the characteristics are denoted by t plus the characteristic symbol, such as tdeltadmp.

The default ISO size specification set in this section is consistent with ISO 14405-1, which is valid for two-point sizes. Some specification modifiers are in

It is described in Appendix D.

The terms in ISO 14405-1 are not completely equivalent to the definitions of the traditional terms in ISO 1132-1 [4]. See Appendix C for the differences.

Table 1 Nominal size symbols, characteristic symbols, and specification modifiers

Nominal size symbol a characteristic symbol a GPS symbol and specification modifier b, c description d

One-way bearing shaft ring nominal inner diameter 1,2

deltadmp

The average size of the inner diameter of the shaft in any section (out

Deviation from its nominal size from two-point size

1,2

Table 1 (continued)

Nominal size symbol a characteristic symbol a GPS symbol and specification modifier b, c description d

d Vdsp

Two-point size of the inner diameter of the collar in any section

range

1,2

Two-way bearing middle shaft nominal diameter 3,4

deltad2mp

The average size of the inner diameter of the middle shaft in any section

(from two-point size) deviation from its nominal size

3,4

Vd2sp

Two-point size of the inner diameter of the inner shaft ring in any section

range

3,4

Seat nominal outer diameter 1,2,3,4

deltaDmp

The average size of the outer diameter of the race in any section (out

Deviation from its nominal size from two-point size

1,2,3,4

VDsp

Two-point size of the outer diameter of the race in any section

range

1,2,3,4

One-way bearing complete set bearing nominal height 1,2

deltaTs

e One-way bearing complete bearing height minimum external scale

Deviation between inch and its nominal size

1,2

Two-way bearing complete bearing nominal height 3,4

deltaT1s

e The minimum external dimension of the bearing height of the two-way bearing

Deviation between inch and its nominal size

3,4

Sef

Thrust cylindrical roller bearings. raceway raceway and back

Range of two-point size between thicknesses

2,4

Thrust ball bearing. by the axis of the outer surface of the race

Raceway and raceway back obtained from any longitudinal section

Range of minimum spherical dimensions between corresponding points

1,3

Sif

Thrust cylindrical roller bearings. shaft raceway and back

Range of two-point size between thicknesses

Thrust ball bearing. by the axis of the shaft through the shaft

The longitudinal section of the raceway and the back of the collar

The range of the smallest spherical size between the corresponding points

a In addition to the format, the symbols defined in ISO 15241 [12].

b According to the symbol defined in ISO 14405-1.

c The specification modifier " " is not marked on the drawing because the two-point size is the default size specification modifier.

d Description according to ISO 14405-1.

e Gravity direction symbol " " according to ISO /T S17863, see Figure 1~4.

f Only for thrust balls and thrust cylindrical roller bearings with a contact angle of 90°.

The labels in Figures 1 through 4 indicate the relationship between the interface dimensions and the corresponding dimensional tolerance symbols.

Note. Figures 1 to 4 are only drawn diagrammatically and do not necessarily show all structural details.

See Appendix B for examples of two actual pattern labels.

Description.

1---seat;

2---axis ring.

Figure 1 Unidirectional bearing size specification --- Thrust ball bearing

Description.

1---seat;

2---axis ring.

Figure 2 Unidirectional bearing size specification --- Thrust cylindrical roller bearing

Description.

1---seat;

2---axis ring.

Figure 3 bidirectional bearing size specification --- thrust ball bearing

Description.

1---seat;

2---axis ring.

Figure 4 Bidirectional bearing size specification --- Thrust cylindrical roller bearing

5 Limit deviation and tolerance value

5.1 General

The limit deviation and tolerance values of one-way and two-way thrust bearings are shown in Table 2 to Table 9.

Note. In addition to the inner diameter of the center collar, some features of the center shaft will be revised in a future release.

The following symbols U and L are used in Tables 2 to 9.

U---upper limit deviation;

L---lower limit deviation.

5.2 Ordinary tolerances

See Table 2 and Table 3.

Table 2 Shaft, Middle Shaft and Bearing Height---Common Tolerance Limit Deviation and Tolerance Value in Micrometers

d and d2

tdeltadmp,tdeltad2mp

> <= UL

tVdsp,

tVd2sp

tSia,b

tdeltaTs tdeltaT1s

ULUL

- 18 0 -8 6 10 20 -250 150 -400

18 30 0 -10 8 10 20 -250 150 -400

30 50 0 -12 9 10 20 -250 150 -400

50 80 0 -15 11 10 20 -300 150 -500

80 120 0 -20 15 15 25 -300.200 -500

120 180 0 -25 19 15 25 -400.200 -600

180 250 0 -30 23 20 30 -400 250 -600

250 315 0 -35 26 25 40 -400 - -

315 400 0 -40 30 30 40 -500 - -

400 500 0 -45 34 30 50 -500 - -

500 630 0 -50 38 35 60 -600 - -

630 800 0 -75 55 40 70 -750 - -

800 1000 0 -100 75 45 80 -1000 - -

1000 1250 0 -125 95 50 100 -1400 - -

1250 1600 0 -160 120 60 120 -1600 - -

1600.2000 0 -200 150 75 140 -1900 - -

2000 2500 0 -250 190 90 160 -2300 - -

Note. For two-way bearings, the tolerance value is only applicable to bearings with d2 <= 190mm.

a Only for thrust balls and thrust cylindrical roller bearings with a contact angle of 90°.

Table 3 Seat---Common Tolerance Limit Deviation and Tolerance Value in Micron

tdeltaDmp

> <= UL

tVDsp tSea

10 18 0 -11 8

18 30 0 -13 10

30 50 0 -16 12

50 80 0 -19 14

80 120 0 -22 17

120 180 0 -25 19

180 250 0 -30 23

250 315 0 -35 26

315 400 0 -40 30

400 500 0 -45 34

500 630 0 -50 38

630 800 0 -75 55

800 1000 0 -100 75

1000 1250 0 -125 95

1250 1600 0 -160 120

1600.2000 0 -200 150

2000 2500 0 -250 190

2500 2850 0 -300 225

With the same bearing shaft

The same tSi value

Note. For two-way bearings, the tolerance value is only applicable to bearings with D <= 360mm.

a Only for thrust balls and thrust cylindrical roller bearings with a contact angle of 90°.

5.3 6-level tolerance

See Table 4 and Table 5.

Table 4 Shaft, Middle Shaft and Bearing Height - Grade 6 Tolerance Limit Deviation and Tolerance Value in Micrometers

d and d2

tdeltadmp,tdeltad2mp

> <= UL

tVdsp,

tVd2sp

tSia,b

tdeltaTs tdeltaT1s

ULUL

- 18 0 -8 6 5 20 -250 150 -400

18 30 0 -10 8 5 20 -250 150 -400

30 50 0 -12 9 6 20 -250 150 -400

50 80 0 -15 11 7 20 -300 150 -500

80 120 0 -20 15 8 25 -300.200 -500

Table 4 (continued) Limit deviation and tolerance values in microns

d and d2

tdeltadmp,tdeltad2mp

> <= UL

tVdsp,

tVd2sp

tSia,b

tdeltaTs tdeltaT1s

ULUL

120 180 0 -25 19 9 25 -400.200 -600

180 250 0 -30 23 10 30 -400 250 -600

250 315 0 -35 26 13 40 -400 - -

315 400 0 -40 30 15 40 -500 - -

400 500 0 -45 34 18 50 -500 - -

500 630 0 -50 38 21 60 -600 - -

630 800 0 -75 55 25 70 -750 - -

800 1000 0 -100 75 30 80 -1000 - -

1000 1250 0 -125 95 35 100 -1400 - -

1250 1600 0 -160 120 40 120 -1600 - -

1600.2000 0 -200 150 45 140 -1900 - -

2000 2500 0 -250 190 50 160 -2300 - -

Note. For two-way bearings, the tolerance value is only applicable to bearings with d2 <= 190mm.

a Only for thrust balls and thrust cylindrical roller bearings with a contact angle of 90°.

Table 5 Seat - Grade 6 tolerance limit deviation and tolerance value in microns

tdeltaDmp

> <= UL

tVDsp tSea

10 18 0 -11 8

18 30 0 -13 10

30 50 0 -16 12

50 80 0 -19 14

80 120 0 -22 17

120 180 0 -25 19

180 250 0 -30 23

250 315 0 -35 26

315 400 0 -40 30

400 500 0 -45 34

500 630 0 -50 38

630 800 0 -75 55

With the same bearing shaft

The same tSi value

Table 5 (continued) Limit deviation and tolerance values in microns

tdeltaDmp

> <= UL

tVDsp tSea

800 1000 0 -100 75

1000 1250 0 -125 95

1250 1600 0 -160 120

1600.2000 0 -200 150

2000 2500 0 -250 190

2500 2850 0 -300 225

With the same bearing shaft

The same tSi value

Note. For two-way bearings, the tolerance value is only applicable to bearings with D <= 360mm.

a Only for thrust balls and thrust cylindrical roller bearings with a contact angle of 90°.

5.4 5-level tolerance

See Table 6 and Table 7.

Table 6 Shaft, Middle Shaft and Bearing Height - Grade-5 Tolerance Limit Deviation and Tolerance Value in Micrometers

d and d2

tdeltadmp,tdeltad2mp

> <= UL

tVdsp,

tVd2sp

tSia,b

tdeltaTs tdeltaT1s

ULUL

- 18 0 -8 6 3 20 -250 150 -400

18 30 0 -10 8 3 20 -250 150 -400

30 50 0 -12 9 3 20 -250 150 -400

50 80 0 -15 11 4 20 -300 150 -500

80 120 0 -20 15 4 25 -300.200 -500

120 180 0 -25 19 5 25 -400.200 -600

180 250 0 -30 23 5 30 -400 250 -600

250 315 0 -35 26 7 40 -400 - -

315 400 0 -40 30 7 40 -500 - -

400 500 0 -45 34 9 50 -500 - -

500 630 0 -50 38 11 60 -600 - -

630 800 0 -75 55 13 70 -750 - -

800 1000 0 -100 75 15 80 -1000 - -

1000 1250 0 -125 95 18 100 -1400 - -

1250 1600 0 -160 120 25 120 -1600 - -

1600.2000 0 -200 150 30 140 -1900 - -

2000 2500 0 -250 190 40 160 -2300 - -

Note. For two-way bearings, the tolerance value is only applicable to bearings with d2 <= 190mm.

a Only for thrust balls and thrust cylindrical roller bearings with a contact angle of 90°.

b Not applicable to the center shaft ring.

Table 7 Seat---5-level tolerance limit deviation and tolerance value in microns

tdeltaDmp

> <= UL

tVDsp tSea

10 18 0 -11 8

18 30 0 -13 10

30 50 0 -16 12

50 80 0 -19 14

80 120 0 -22 17

120 180 0 -25 19

180 250 0 -30 23

250 315 0 -35 26

315 400 0 -40 30

400 500 0 -45 34

500 630 0 -50 38

630 800 0 -75 55

800 1000 0 -100 75

1000 1250 0 -125 95

1250 1600 0 -160 120

1600.2000 0 -200 150

2000 2500 0 -250 190

2500 2850 0 -300 225

With the same bearing shaft

The same tSi value

Note. For two-way bearings, the tolerance value is only applicable to bearings with D <= 360mm.

a Only for thrust balls and thrust cylindrical roller bearings with a contact angle of 90°.

5.5 4-level tolerance

See Table 8 and Table 9.

Table 8 Shaft, Middle Shaft and Bearing Height - Grade-4 Tolerance Limit Deviation and Tolerance Value in Micrometers

d and d2

tdeltadmp,tdeltad2mp

> <= UL

tVdsp,

tVd2sp

tSia,b

tdeltaTs tdeltaT1s

ULUL

- 18 0 -7 5 2 20 -250 150 -400

18 30 0 -8 6 2 20 -250 150 -400

30 50 0 -10 8 2 20 -250 150 -400

50 80 0 -12 9 3 20 -300 150 -500

80 120 0 -15 11 3 25 -300.200 -500

120 180 0 -18 14 4 25 -400.200 -600

180 250 0 -22 17 4 30 -400 250 -600

250 315 0 -25 19 5 40 -400 - -

315 400 0 -30 23 5 40 -500 - -

400 500 0 -35 26 6 50 -500 - -

500 630 0 -40 30 7 60 -600 - -

630 800 0 -50 40 8 70 -750 - -

Note. For two-way bearings, the tolerance value is only applicable to bearings with d2 <= 190mm.

a Only for thrust balls and thrust cylindrical roller bearings with a contact angle of 90°.

b Not applicable to the center shaft ring.

Table 9 Seat - Grade-4 tolerance limit deviation and tolerance value in microns

tdeltaDmp

> <= UL

tVDsp tSea

10 18 0 -7 5

18 30 0 -8 6

30 50 0 -9 7

50 80 0 -11 8

80 120 0 -13 10

120 180 0 -15 11

180 250 0 -20 15

250 315 0 -25 19

315 400 0 -28 21

400 500 0 -33 25

500 630 0 -38 29

630 800 0 -45 34

800 1000 0 -60 45

With the same bearing shaft

The same tSi value

Note. For two-way bearings, the tolerance value is only applicable to bearings with D <= 360mm.

a Only for thrust balls and thrust cylindrical roller bearings with a contact angle of 90°.

Appendix A

(informative appendix)

Relationship between symbols and terms in the.2012 edition of the standard and the descriptions in this section

Table A.1 Description of the symbols

Nominal size symbol characteristic symbol Terminology in the.2012 edition of the standard

One-way bearing shaft ring nominal inner diameter one-way bearing shaft ring nominal inner diameter

deltadmp one-way bearing shaft single plane average inner diameter deviation

The average size of the inner diameter of the shaft in any section (from two

Point size) deviation from its nominal size

Vdsp one-way bearing shaft ring single plane inner diameter variation within any section, the inner diameter of the shaft ring two-point size range

Two-way bearing, shaft ring, nominal inner diameter, two-way bearing, shaft ring, nominal diameter

deltad2mp

Single plane average inner diameter of the shaft ring in the two-way bearing

deviation

The average size of the inner diameter of the central collar in any section (from

Two-point size) deviation from its nominal size

Vd2sp biaxial bearing, the variation of the single plane inner diameter of the shaft ring in any section, the range of the two-point size of the inner diameter of the middle shaft ring

Nominal outer diameter seat ring nominal outer diameter

deltaDmp seat single plane average outer diameter deviation

The average size of the outer diameter of the race in any section (from two

Point size) deviation from its nominal size

VDsp seat single plane outer diameter variation in any section, the outer diameter of the seat two-point size range

One-way bearing nominal height one-way bearing complete set bearing nominal height

deltaTs one-way bearing actual height deviation

The minimum external dimension of the one-way bearing complete bearing height

Deviation of its nominal size

Two-way bearing nominal height two-way bearing complete bearing nominal height

deltaT1s bidirectional bearing actual height deviation

The minimum external dimension of the bearing height of the two-way bearing

Deviation of its nominal size

Variation in thickness between the raceway and the back of the Se race

Thrust cylindrical roller bearings. thick between raceway and back

Degree of two-point size

Thrust ball bearing. Any of the axes passing through the outer surface of the race

The corresponding section of the raceway and the back of the race

Range of minimum spherical dimensions between

Thickness variation between the raceway of the Si collar and the back

Thrust cylindrical roller bearings. thick between the raceway and the back

Degree of two-point size

Thrust ball bearing. any longitudinal through the axis of the bore through the shaft

The raceway obtained from the section and the corresponding point on the back of the collar

Range of minimum spherical dimensions

Appendix B

(informative appendix)

Thrust bearing characteristics and specification pattern labeling examples

Figure B.1 shows an example of a pattern labeling for the characteristics specified in this section.

Note 1. The specification modifier " " is usually not labeled because the two-point size is the default size specification.

Note 2. Dimensions and tolerance values correspond to two-way thrust ball bearings of size series 22, inner diameter 60 mm, and normal tolerances.

Figure B.1 Pattern example

Figure B.2 shows an example of a pattern label that only labels the major dimensional tolerances. Others.

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

Referenced standards

Normative references

ISO 5593 · ISO 14405

Cited by

GB/T 307.3-2017Rolling bearings - General technical regulations

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