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GB/T 959.1-2017 PDF English

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GB/T 959.1-2017: Specifications for Retaining Rings - Circlips
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GB/T 959.1: Historical versions

Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
GB/T 959.1-2017115 Add to Cart Auto, 9 seconds. Specifications for Retaining Rings - Circlips Valid
GB/T 959.1-1986159 Add to Cart 2 days Specifications for ring. Circlips Obsolete

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GB/T 959.1-2017: Specifications for Retaining Rings - Circlips

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT959.1-2017
GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 21.060.30 J 13 Replacing GB/T 959.1-1986 Specifications for Retaining Rings – Circlips Issued on: JULY 12, 2017 Implemented on: FEBRUARY 1, 2018 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. 3. No action is required - Full-copy of this standard will be automatically & immediately delivered to your EMAIL address in 0~60 minutes.

Table of Contents

Foreword ... 3 1 Application Scope ... 5 2 Normative References ... 5 3 Materials ... 5 4 Properties ... 6 5 Surface Treatment ... 7 6 Test Methods ... 7 7 Surface Defects ... 11 8 Acceptance Inspection ... 11 9 Marking and Packaging ... 12 Annex A (Normative) Technical Requirements for Steels C67S and C75S ... 13

Foreword

This Part belongs to the serial standards under the national standard “Retaining Rings”. The series include. -- GB/T 893, Retaining Rings for Bores; -- GB/T 894, Retaining Rings for Shaft; -- GB/T 896, “E” Rings; -- GB/T 959.1, Specifications for Retaining Rings – Circlips. This Part is Part 1 of GB/T 959. This Part was drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB/T 959.1-1986, Specifications for Ring – Circlips. Compared with GB/T 959.1-1986, the major changes of this Part are as follows. -- the material designations 70, C67S and C75S are added and it is specified that the materials of retaining rings are to be determined by the manufacturer (see Article 3); -- it adds for heat treatment. d1 > 200 mm ~ 300 mm; hardness 390 HV ~ 470 HV; 40 HRC ~ 47 HRC (see Table 2); -- it adds bending test for retaining rings for bores and shafts (see 4.1 and 6.1); -- it adds conical deformation test for retaining rings for bores and shafts (see 4.2 and 6.2); -- it modifies the technical requirements and methods for resilience test of retaining rings for bores and shafts (see 4.4 and 6.4); -- it deletes zinc plating passivation, adds surface phosphating treatment and surface corrosion resistance and specifies that the surface treatment of retaining rings is to be determined by the manufacturer (see Article 5 and 6.6); -- it adds dimensions, properties and acceptable quality levels (AQL) of retaining rings (see Table 6 and Table 7). This Part was proposed by China Machinery Industry Federation. This Part shall be under the jurisdiction of the National Standardization Technical Committee on Fasteners (SAC/TC 85). The responsible drafting organization of this Part. China Productivity Centre for Machinery. Specifications for Retaining Rings – Circlips

1 Application Scope

This Part of GB/T 959 specifies the specifications for retaining rings for bores and shafts and “E” rings. This Part applies to retaining rings for bores and shafts and “E” rings as specified by the national Standards, as well as other standard and non-standard retaining ring products.

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to This Standard. GB/T 90.1, Fasteners – Acceptance Inspection GB/T 90.2, Fasteners – Marking and Packaging GB/T 1222, Spring Steels GB/T 4357, Cold-drawn Non-alloy Steel Wire for Springs GB/T 10125, Corrosion tests in Artificial Atmospheres – Salt Spray Tests GB/T 11376, Phosphate Conversion Coatings for Metals JB/T 3411.47, Pincer for Assembly Spring Thrust Collar on Shaft – Dimensions JB/T 3411.48, Pincer for Assembly Spring Thrust Collar in Hole – Dimensions

3 Materials

The materials of retaining rings and heat treatment hardness are to be determined by the manufacturer and shall be as specified in Table 1 and Table 2. Table 1 – Materials

Annex A

Annex A

......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.

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