GB/T 17587.4-2008Ball screws -- Part 4: Static axial rigidity (English PDF)

Foreword

GB/T 17587 "ball screw" is divided into five sections.

--- Part 1. Terminology and symbols;

--- Part 2. Nominal diameters and nominal leads - Metric series;

--- Part 3. Acceptance conditions and acceptance tests;

--- Part 4. Static axial stiffness;

--- Part 5. Axial rated static and dynamic loads and service life.

This section GB/T Part of 417,587. Modify using ISO 3408-4:2006 "ball screw Part 4. Static axial Rigidity "(in English).

This part of ISO 3408-4:2006 as compared to the main changes are as follows.

--- Taking into account the GB/T 17587.3-1998 "Ball Screw Part 3. Acceptance conditions and acceptance tests" standard ball screws Bar pairs standard tolerance grades have cases Level 2, Level 4 without 0, and in this section 5.5.3 and Appendix B of Table B. 2, Standard tolerance levels increased Level 2, Level 4, the abolition of 0, correspondingly increased the level 2, 4 correction coefficient which is inserted by Calculation into law.

--- Modify the corresponding provision in the margin by a vertical bar logo.

For ease of use, this section also made the following editorial changes.

--- Remove the foreword to international standards;

--- The ISO 3408-4 in the "international standards" to "this Part";

--- Use the decimal symbol instead of as a decimal comma ",". ",";

--- "Using mathematical formula" × "instead of numbers and multiply the number of".. " this section of the Appendix A, Appendix B is an informative annex.

This part is proposed by China Machinery Industry Federation.

This part of the National Metal Cutting Machine Standardization Technical Committee (SAC/TC22) centralized.

This section is responsible for drafting. Shandong Jinan Ningbo Te Precision Screw Co., Ltd.

Participated in the drafting of this section. Nanjing Process Equipment Manufacturing Co., Ltd. Hanjiang Machine Tool.

1 Scope

GB/T 17587 provisions of this part of the ball screw and axial static stiffness related terms and calculation methods.

2 Normative references

The following documents contain provisions which, through reference GB/T 17587 in this section, constitute provisions of this part. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 17587.1 Ball screws - Part 1. Terminology and symbols (GB/T 17587.1-1998, eqv ISO 3408-1.

1991)

3 Terms and Definitions

Terms and definitions GB/T 17587.1 specified apply to this section.

4 Symbols and subscript