基本信息
| 标准名称： | 滚动轴承 公差 第4部分：推力轴承公差 |
| 英文名称： | Rolling bearings—Tolerances—Part 4:Tolerances for thrust bearings |
| 中标分类： |
机械 >>
通用零部件 >>
滚动轴承 |
| ICS分类： |
机械系统和通用件 >>
轴承 >>
滚动轴承
|
| 替代情况： | 替代GB/T 307.4-2002 |
| 发布部门： | 中华人民共和国国家质量监督检验检疫总局 中国国家标准化管理委员会 |
| 发布日期： | 2012-09-03 |
| 实施日期： | 2013-03-01 |
| 首发日期： | 1994-12-27 |
| 作废日期： | |
| 主管部门： | 全国滚动轴承标准化技术委员会(SAC/TC 98) |
| 提出单位： | 中国机械工业联合会 |
| 归口单位： | 全国滚动轴承标准化技术委员会(SAC/TC 98) |
| 起草单位： | 洛阳轴承研究所有限公司、嵊州市美亚特种轴承厂、大连冶金轴承股份有限公司 |
| 起草人： | 李飞雪、周友华、祝端峰、周友峰 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2013-03-01 |
| 页数： | 12页 |
适用范围
GB/T307的本部分规定了符合ISO104的平底推力轴承的外形尺寸(倒角尺寸除外)公差和旋转精度公差。
本部分不适用于某些推力轴承,如推力滚针轴承;也不适用于特殊场合下使用的某些推力轴承,如特殊精度的推力轴承。
倒角尺寸极限规定在ISO582中。
前言
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目录
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引用标准
下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本文件。凡是不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。
ISO104 滚动轴承 推力轴承 外形尺寸总方案(Rollingbearings—Thrustbearings—Boundarydimensions,generalplan)
ISO582 滚动轴承 倒角尺寸 最大值(Rollingbearings—Chamferdimensions—Maximumvalues)
ISO1132-1 滚动轴承 公差 第1部分:术语和定义(Rollingbearings—Tolerances—Part1:Termsanddefinitions)
ISO1132-2 滚动轴承 公差 第2 部分:测量和检验的原则及方法(Rollingbearings—Tolerances—Part2:Measuringandgaugingprinciplesandmethods)
ISO5593 滚动轴承 词汇(Rollingbearings—Vocabulary)
ISO15241 滚动轴承 参数符号(Rollingbearings—Symbolsforquantities)
所属分类： 机械 通用零部件 滚动轴承 机械系统和通用件 轴承 滚动轴承
Product Code:SAE AIR5892
Title:Nonvolatile Exhaust Particle Measurement Techniques
Issuing Committee:E-31 Aircraft Exhaust Emissions Measurement Committee
Scope:This SAE Aerospace Information Report (AIR) addresses procedures applicable to quantifying the emission of nonvolatile particulate matter at the exit plane of aircraft gas turbine engines. While both volatile and nonvolatile particulate matter (PM) are present in aircraft gas turbine exhaust, the methods used to measure nonvolatile particles are farther advanced and are addressed here.Existing PM measurement regulations employ the SAE Smoke Number measurement (Reference 2.1.1), a stained filter technique used in evaluating visible emissions. The environmental and human health issues associated with submicronic PM emissions require more detailed measurement of the mass, size, and quantity of these particle emissions.Responding to regulatory agency requests, this AIR describes measurement techniques that are well developed and could be applied to the measurement of aircraft engine particulate matter. The techniques discussed here are considered relevant for measuring particle parameters identified with environmental and health concerns. The discussion that follows is based on research made while developing measurement techniques and in scientific and engineering experiments regarding PM emissions. The techniques are not yet used in routine aircraft engine certification. Future use in regulatory testing is likely to involve further refinements in methodology and application. It is planned that these refinements will be included in the subsequent publication of an Aerospace Recommended Practice.The distinction between nonvolatile and volatile particle types is a critical task in the measurement of particles in aircraft engine exhaust. Appendix A, SAE E-31 Position Paper on Particle Matter Measurements, provides additional technical bases for the scope of this AIR. The measurement methods for volatile condensed particles in turbine exhaust will be covered in a subsequent report. Observations to date show that volatile particles occur mainly at diameters less than 10 nanometers (