GB/T 307.1-2017Rolling bearings -- Radial bearings -- Geometrical product specifications (GPS) and tolerance values (English PDF)

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 first 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 307.1-2005 "Rolling bearing radial bearing tolerance", compared with GB/T 307.1-2005, the main technology

The changes are as follows.

---Modified standard name (see cover and front page, cover and front page of.2005 edition);

---Modified the meaning and representation of the symbol (see Chapter 4, Chapter 4 of the.2005 edition);

--- Added pattern annotation (see Figure 1 ~ Figure 17);

--- Revised the tolerance values of SD and SD1 (see Table 7, Table 9, Table 11, Table 17, Table 20, Table 23, Table 6, Table 8,.2005 Edition)

Table 10, Table 16, Table 19, Table 22);

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

This part uses the translation method equivalent to ISO 492.2014 "Rolling bearing radial 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 273.3-2015 Rolling bearings - Overall dimensions - Part 3. Radial bearings (ISO 15.2011, IDT)

---GB/T 274-2000 Rolling bearing chamfer size maximum (idtISO 582.1995)

---GB/T 1182-2008 Product Geometry Specification (GPS) Geometric Tolerance Shape, Orientation, Position and Runout Tolerance

(ISO 1101.2004, IDT)

---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., Xiangyang Automobile Bearing Co., Ltd., 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 [12] Master Plan)

Prime standard.

Unless otherwise specified, the basic principles of ISO /GPS given in ISO 8015 [8] apply to this part, given in ISO 14253-1 [10]

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-

The description is given in 2[5], and the measurement uncertainty is recommended to focus on ISO 14253-2 [11].

Rolling bearing radial bearing

Product Geometric Specifications (GPS) and tolerance values

1 Scope

This part of GB/T 307 specifies the dimensions and geometrical characteristics of the radial bearing, the limit deviation from the nominal size, and the tolerance value.

The interface of the directional heart bearing (except for chamfering). The nominal dimensions are given in ISO 15, ISO 355 [2] and ISO 8443 [7].

This section does not apply to some special types of radial bearings (such as drawn cup needle roller bearings) or radial bearings used in special occasions (such as

Aircraft frame bearings and instrument precision bearings). The tolerances of these bearings are given in the corresponding standards.

The chamfer size limit is given in ISO 582.

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 15 Rolling Bearing Radial Bearings Overall Size (Rolingbearings-Radialbearings-Boundary

Dimensions, generalplan)

ISO 582 rolling bearing chamfer size maximum (Rolingbearings-Chamferdimensions-Maximumvalues)

ISO 1101 Product Geometry Specification (GPS) Geometric Tolerance Shape, Orientation, Position, and Runout Tolerance (Geometrical

Productspecifications(GPS)-Geometricaltolerancing-Tolerancesofform,orientation,locationand

Run-out)

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 1101, 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 [8], the technical product documentation (as shown) should contain dimensions and geometry.

The dimensions and geometric specifications associated with these characteristics are illustrated in Table 1 and Figures 1-17.

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 tVBs.

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 1101 and ISO 14405-1 are not completely equivalent to the definitions of the traditional terms in ISO 1132-1 [4].

Record C.

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

Nominal size

And distance) symbol a

Characteristic symbol a GPS symbol and specification modifier b,c description d figure number

Inner ring nominal width 1,2,12

VBs

Symmetrical ferrule. The range of the two-point size of the inner ring width is 1,12

Asymmetrical ferrule. by any longitudinal direction through the inner bore axis

The width of the inner circle between the two opposite straight lines obtained by the cross section

Small external size range

2,7

deltaBs

Symmetrical ferrule. two-point size of the inner ring width and its nominal size

Deviation

1,12

Asymmetrical ferrule, upper limit. by the inner bore axis

Inner ring between two opposing straight lines obtained from any longitudinal section

Deviation of the minimum circumscribed dimension of the width from its nominal size

Asymmetrical ferrule, lower limit. two-point size of the inner ring width

Deviation of its nominal size

2,7

Outer ring nominal width 1,7,12

VCs

Symmetrical ferrule. the range of the two-point size of the outer ring width 1,7

Asymmetrical ferrule. any longitudinal through the outer surface of the outer ring

Width of the outer ring between two opposing straight lines obtained from the cross section

Minimum external size range

2,12

deltaCs

Symmetrical ferrule. two-point size of the outer ring width and its nominal size

Deviation

1,7

Asymmetrical ferrule, upper limit. by the outer surface of the outer ring

Any longitudinal section obtained between the two opposite straight lines

The deviation of the minimum external dimension of the circle width from its nominal size

Asymmetrical ferrule, lower limit. two-point size of the outer ring width

Deviation of its nominal size

2,12

C1

Outer ring flange nominal width 12

VC1s outer ring flange width of two points size range 12

deltaC1s

The two-point size of the outer ring flange width and its nominal size

deviation

The nominal inner diameter of the small end of the cylindrical or conical hole is 1~7, 12~16

Vdmp

The average size of the inner diameter obtained from any section of the cylindrical hole (out

Range from two point size)

1,2,12

deltadmp

Cylindrical hole. the average size of the inner diameter in any section (from two

Point size) deviation from its nominal size

1,2,12

Conical hole. the average size of the theoretical small end inner diameter (from two points

Dimension) deviation from its nominal size

Table 1 (continued)

Nominal size

And distance) symbol a

Characteristic symbol a GPS symbol and specification modifier b,c description d figure number

Vdsp

Two-point size of inner diameter in any section of cylindrical or conical hole

Range

1,2,7,12

deltads The deviation of the two-point size of the inner diameter of the cylindrical hole from its nominal size 1,2,12

D1

The nominal inner diameter of the large end of the tapered hole theory 7

deltad1mp

The average size of the inner diameter of the large end of the tapered hole theory (from two points

Inch) deviation from its nominal size

Nominal outer diameter 1~16

VDmp

Average size of the outer diameter obtained from any section (from two points

Range of dimensions)

1,2,7,12

deltaDmp

The average size of the outer diameter in any section (from the two-point size)

Deviation from its nominal size

1,2,7,12

VDsp in any section, the outer diameter of the two-point size range 1,2,7,12

Deviation of the two-point size of the deltaDs outer diameter from its nominal size 1, 2, 7, 12

D1

Outer ring flange nominal outer diameter 12

deltaD1s

The two-point size of the outer ring flange outer diameter and its nominal size

deviation

Kea

The outer surface of the outer ring of the complete set of bearings is referenced (ie, the inner ring inner hole table)

Radial circular runout of the axis determined by the face

4,5,6,9,

10,11,14,

15,16

Kia

The inner surface of the inner ring of the complete set of bearings is referenced (ie, by the outer ring

Radial circular runout of the axis determined by the face

4,5,6,9,

10,11,14,

15,16

Sd

The end of the inner ring faces the reference (ie the axis determined by the inner surface of the inner ring)

Axial circular runout

3,8,13

SD

The outer surface of the outer ring is aligned with the reference (determined by the outer ring end face)

Verticality 3

,8

SD1

Outer ring outer surface axis to the reference (by the outer ring flange back

Verticality 13

Sea

The outer ring end face of the complete bearing pair is referenced (ie, the inner ring inner hole surface

Axial circular runout of the determined axis)

5,6,10,11

Sea1

Complete set of bearing outer ring flange back facing reference (ie by inner ring inner hole

Axial circular runout of the surface defined axis

15,16

Sia

The inner end of the complete bearing is facing the reference (that is, the outer surface of the outer ring is

Axial circular runout

5,6,10,

11,15,16

SL h

Cone slope height, that is, the large end and small end nominal diameter of the conical hole theory

Difference (d1-d)

Deviation of the cone height of the deltaSL tapered inner ring from its nominal size i 7

Table 1 (continued)

Nominal size

And distance) symbol a

Characteristic symbol a GPS symbol and specification modifier b,c description d figure number

Complete bearing nominal width 17

deltaTs

The minimum external dimension of the complete bearing width and its nominal size

Deviation

T1

Nominal effective width after assembly of inner and standard outer rings 17

deltaT1s

Minimum width (after assembly of inner and standard outer rings)

Deviation between the external dimension and its nominal size

T2

Nominal effective width after assembly of outer ring and standard inner component 17

deltaT2s

Minimum width (after assembly of outer ring and standard inner components)

Deviation between the external dimension and its nominal size

TF

Complete set of flange bearing nominal width 17

deltaTFs

The minimum external dimension of the flange bearing width and its nominal name

Dimensional deviation

TF2

Nominal effective width after assembly of outer ring and standard inner component 17

deltaTF2s

Effective width (after flange outer ring and standard inner assembly)

Deviation of the minimum external dimension from its nominal size

Angle of the alpha frustoconical bore

7,8,9,

10,11

The distance from the ak end face to the boundary of the SD or SD1 constraint zone 3, 8, 13

a In addition to the format, the symbols defined in ISO 15241 [14].

b Symbols as defined in ISO 1101 and ISO 14405-1.

c If the two-point size applies to the specified upper and lower limits, the specification modifier " " is not marked on the drawing.

d Description according to ISO 1101, ISO 5459 [7] and ISO 14405-1.

e When the opposite material does not exist, such as the outer ring of the tapered roller bearing with a large chamfer on the back and a small front, the specification modifier " " does not apply. Need to be in

A solution is developed within the framework of the GPS system and will be considered in the future revision of this document.

f The specification modifier "SCS" can be omitted from the drawing.

g Gravity direction symbol " ", fixed part symbol "FP", active part symbol "MP" according to ISO /T S17863, see Figure 4, Figure 5, Figure 6, Figure 9, Figure 10,

Figure 11, Figure 14, Figure 15, Figure 16, and Figure 17.

h SL system distance.

i Description by ISO 1119 [3].

When krsmin <= 0.6, a = rsmax, axial 0.5; rsmin > 0.6, a = 1.2 x rsmax, axial; rsmax, axial see ISO 582. Rsmin and rsmax, axial definition

See ISO 582.

The notation in Figures 1 through 17 indicates the relationship between interface dimensions and corresponding dimensional tolerances and geometric tolerance symbols.

The specifications of the individual components are illustrated in Figures 1, 2, 3, 7, 8, 12, and 13. The specification of the kit is shown in Figure 4.

5, 6, 9, 10, 11, 14, 15, 15, and 17 are illustrated.

Note. Figures 1 through 17 are only drawn diagrammatically and do not necessarily show all structural details.

See Appendix B for examples of two actual pattern labels.

Figure 1 Dimensional specification for individual components of cylindrical bores and symmetrical ferrule bearings

Note. tVBs and tVCs are not related to tapered roller bearings.

Figure 2 Dimensional specifications for individual components of cylindrical bore, asymmetric ferrule bearings

Figure 3 Geometric tolerances of individual components of a cylindrical bore bearing

Figure 4 Geometric tolerances of cylindrical bore bearings---Cylindrical roller bearings, spherical roller bearings, long-arc roller bearings and self-aligning ball bearings

Figure 5 Geometric tolerances of cylindrical bore bearings---deep groove ball bearings, double row deep groove ball bearings,

Double row angular contact ball bearing and four point contact ball bearing

Figure 6 Geometric tolerances of cylindrical bore bearings---single row angular contact ball bearings and tapered roller bearings

Note. The labeling of the asymmetric outer ring is shown in Figure 2.

Figure 7. Dimensional specifications for individual components of tapered bore bearings

Figure 8 Geometric tolerances of individual components of tapered bore bearings

Figure 9 Geometric tolerances of tapered bore bearings---Cylindrical roller bearings, spherical roller bearings, long-arc roller bearings

And self-aligning ball bearings

Figure 10 Geometric tolerances of tapered bore bearings---Deep groove ball bearings, double row deep groove ball bearings, double row angular contact ball bearings

And four point contact ball bearings

Figure 11 Geometric tolerances of tapered bore bearings---single row angular contact ball bearings and tapered roller bearings

Note. The labeling of the asymmetric outer ring is shown in Figure 2.

Figure 12 Dimensional specification for individual components of flanged outer ring bearings

Figure 13 Geometric tolerances of individual parts of flanged outer ring bearings

Figure 14 Geometric tolerances of a set of flanged outer ring bearings---cylindrical roller bearings, spherical roller bearings,

Long arc roller bearing and self-aligning ball bearing

Figure 15 Geometric tolerances of flanged outer ring bearings---deep groove ball bearings, double row deep groove ball bearings, double row angular contact ball bearings

And four point contact ball bearings

Figure 16 Geometric tolerances of flanged outer ring bearings---single row angular contact ball bearings and tapered roller bearings

Description.

1---standard outer ring;

2---standard components.

Figure 17 Additional symbols for a set of tapered roller bearings

5 Limit deviation and tolerance value