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标准名称：	35mm磁片上单轨及三轨声带的录音和还音磁头的隙缝位置和宽度尺寸
中标分类：	综合 >> 经济、文化 >> 电影与摄影技术
替代情况：	被GB/T 4637-1994代替
发布日期：
实施日期：	1985-05-01
首发日期：
作废日期：
出版日期：
页数：	2页

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Product Code:SAE ARP5448
Title:Plain Bearing Test Methods
Issuing Committee:Acbg Plain Bearing Committee
Scope:This SAE Aerospace Recommended Practice (ARP) establishes methods for testing airframe plain bearings. The purpose of ARP5448 and its associated slash sheets is to document test methods commonly used to evaluate airframe bearings. These test methods may be referenced in specifications, part standards, purchase orders, etc. when the test is deemed appropriate to the intended use of the bearing by the end user of the bearing. These test methods are not intended to encompass every conceivable requirement for an airframe bearing. The end user of the bearing must exercise engineering judgment to determine the most apprpriate standard and/or nonstandard tests for the application.