Standard No.:	JJG (交通) 011-2005
English Name:	Verification Regulation of The Wheel Field Balancing Equipment
Chinese Name:	就车式车轮动平衡仪检定规程
Chinese Classification:	A53    Mechanics Measurement
Professional Classification:	JJ    Metering
Source Content Issued by:	Ministry of Transport
Issued on:	2005-3-10
Implemented on:	2005-6-15
Status:	valid
Superseding:	JJG 交通 011-1997
Target Language:	English
File Format:	PDF
Word Count:	5000 words
Translation Price(USD):	150.0
Delivery:	via email in 1 business day

The wheel field balancing equipment Verification regulation of the wheel field balancing equipment 1 Scope This regulation is applicable to the initial verification, subsequent verification and in-service inspection of the wheel field balancing equipment (hereinafter referred to as the balancing equipment). 2 General The balancing equipment is a testing equipment used to measure the unbalance value, and the phase of the dynamic unbalance point, for a wheel installed on an automobile. An electromechanical switching system shall be used to convert the dynamic unbalance value into a measurable electrical signal, and output its value after measurement and data processing. Observe the white mark applied on the wheel in advance with strobe light to determine the phase of unbalance. 3 Metrological performance requirements 3.1 In calculation of the relative minimum residual unbalance e, G40 shall be taken as the balance quality grade. 3.2 When the indication value Ai of each balance point meets the requirements for the indication error in 8.8A0

1 Scope 2 General 3 Metrological performance requirements 4 General technical requirements 5 Control of metrological instruments Annex A The maximum allowable unbalance corresponding to each balance quality grade (Referring to GB 9239-88) Annex B Verification recording for the wheel field balancing equipment Annex C Format of the back of the verification certificate