Standard No.:	JB/T 7270.8-2014
English Name:	Ball handle
Chinese Name:	球头手柄
Chinese Classification:	J27    Operation piece
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	25.060.99 25.060.99    Other machine tool systems 25.060.99
Issued by:	Ministry of Industry and Information Technology
Issued on:	2014-07-09
Implemented on:	2014-11-1
Status:	abolished
Abolished on:	2024-07-11
Superseding:	JB/T 7270.8-1994 Ball handles
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	130.00
Delivery:	via email in 1 business day

Ball handle



1 Scope



This part of JB/T 7270 specifies the types and dimensions, marking and technical requirements of ball handle.



This part is applicable to ball handle.



2 Normative references



The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.



JB/T 7276 Designation of operating handle, hand wheel and knob

JB/T 7277 Specification of operating handle, hand wheel and knob



3 Types and dimensions

Foreword i
1 Scope
2 Normative references
3 Types and dimensions
4 Marking
4.1 Marking method
4.2 Marking examples
5 Technical requirements
5.1 Recommended materials
5.2 Surface treatment
5.3 Others
Figure 1 Ball handle
Table 1 Dimensions of ball handle