GB/T 5105-2004The basic types and dimensions of hobs for 45 Degree pressure angle involute splines (English PDF)

Foreword

This Standard replaces GB/T 5105-1985 "The basic types and dimensions of

hobs for 45° pressure angle involute splines".

Compared with GB/T 5105-1985, the main changes of this Standard are as

follows:

- ADD a marking example;

- Modify the series code of modulus.

Appendix A and Appendix B of this Standard are informative appendices.

This Standard was proposed by China Machinery Industry Federation.

This Standard shall be under the jurisdiction of National Technical Committee

91 on Cutting Tools of Standardization Administration of China.

Responsible drafting organization of this Standard: Guiyang Tool Factory.

Main drafters of this Standard: Liu Minzhi, Lin Gang, Wang Shuguang.

The previous editions of the standard replaced by this Standard were released

as follows:

- GB/T 5105-1985.

The basic types and dimensions of hobs for 45°

pressure angle involute splines

1 Scope

This Standard specifies the basic types and dimensions of hobs for the overall

involute splines with a modulus of 0.25 mm~2.50 mm and a pressure angle of

45°.

This Standard is applicable to hobs for straight cylindrical involute splines with

machined basic rack profiles according to GB/T 3478.1 and dimensions

according to GB/T 3478.4.

The hob is of class C accuracy.

2 Normative references

The following documents contain provisions which, through reference in this

Standard, constitute provisions of this Standard. For the dated references, their

subsequent amendments (excluding corrections) or revisions do not apply to

this Standard. However, the parties who enter into agreement based on this

Standard are encouraged to investigate whether the latest editions of these

documents are applicable. For undated reference documents, the latest

editions apply to this Standard.

GB/T 3478.1 Straight cylindrical involute splines - Modules, basic rack

profiles and tolerances (GB/T 3478.1-1995, eqv ISO 4156:1981)

GB/T 3478.4 Straight cylindrical involute splines - 45° pressure angle

dimensions tables (GB/T 3478.4-1995, neq ISO 4156:1981)

GB/T 5103-2004 The general technical specifications for involute splines

hobs

GB/T 6132 Interchangeability dimensions for milling cutters and arbors

(GB/T 6132-1993, neq ISO 240:1981)

3 Types and dimensions