Standard No.:	GB/T 959.1-2017
English Name:	Specifications for retaining rings--Circlips
Chinese Name:	挡圈技术条件 弹性挡圈
Chinese Classification:	J13    Fastener
Professional Classification:	GB    National Standard
ICS Classification:	21.060.30 21.060.30    Washers, locking elements 21.060.30
Issued by:	MOHURD and AQSIQ
Issued on:	2017-07-12
Implemented on:	2018-2-1
Status:	valid
Superseding:	GB/T 959.1-1986 Specifications for ring; Circlips
Language:	English
File Format:	PDF
Word Count:	5500 words
Price(USD):	110.0
Delivery:	via email in 1 business day

Specifications for retaining rings - Circlips 1 Scope This part of GB/T 959 specifies the technical specifications for retaining rings for bores and shafts and for "E" rings. This part is applicable to the retaining rings for bores and shafts and for "E" rings specified by national standards, as well as to other standard and non-standard retaining rings. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. 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 unalloyed 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 material and heat treatment hardness of the retaining rings shall be determined by the manufacturer and shall comply with the those specified in Tables 1 and 2.

Foreword i 1 Scope 2 Normative references 3 Materials 4 Performance 5 Surface treatment 6 Test method 7 Surface defect 8 Inspection for acceptance 9 Marking and packaging Annex A (Normative) Technical specifications for C67S and C75S steels