Standard No.:	JG/T 68-1999
English Name:	Construction machinery 3-row roller slewing rings
Chinese Name:	建筑机械用三排柱式回转支承
Chinese Classification:	P97    Architectural engineering construction machinery
Professional Classification:	JG    Professional Standard - Building
Issued by:	MOC
Issued on:	1999-6-4
Implemented on:	1999-6-4
Status:	superseded
Superseded by:	JB/T 10837-2008 Building construction machinery and equipment-3-row roller slewing rings
Superseded on:	2008-7-1
Superseding:	JJ 36.3-1991
Language:	English
File Format:	PDF
Word Count:	10000 words
Price(USD):	300.0
Delivery:	via email in 1~3 business day

本标准规定的建筑机械用三排柱式回转支承是建筑机械中同时承受轴向力、倾翻力矩、径向力且需两部分相对转动的专用传力基础件。本标准规定了三排柱式回转支承的机构型式、基本参数系列、技术要求、试验方法和检验规则等。本标准适用于三排柱式回转支承的产品设计、制造和选用。其他起重装卸机械、矿山机械、港口机械等亦可参照使用。