tailieunhanh - Clutches and Brakes Design and Selection Part 14

Tham khảo tài liệu 'clutches and brakes design and selection part 14', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 14 Engineering Standards for Clutches and Brakes I. SAE STANDARDS Fifteen of these standards for the year 2003 that pertain to brake or clutch components are briefly described in the remainder of this chapter. Other standards apply to brake line hoses fluids for hydraulically activated brakes brake cables clutch flywheels and so on. Descriptions of these standards are arranged in the numerical order of the standards. This order differs from the coded order found in the SAE Handbook wherein the first digits are listed in numerical order followed by the second digits and so on. In that system the order would be SAE J1079 SAE J1087 SAE J160 SAE 286 SAEJ866. Society of Automotive Engineers SAE standards may be purchased from the Society of Automotive Engineers 400 Commonwealth Drive Warrendale PA 15096-0001. All of them are collected in the SAE Handbook which is also available for sale from the society. They are frequently updated to reflect current engineering practice and some such as SAE J659 have been cancelled. A. SAEJ160 This seven-page standard entitled Dimensional Stability of Friction Materials When Exposed to Elevated Temperatures is to establish a common laboratory method for determining the dimensional stability of friction materials when exposed to elevated thermal conditions. Dimensional changes in a Copyright 2004 Marcel Dekker Inc. lining material may cause unintended contact in either clutches or brakes between mating surfaces with the obvious possibility of serious consequences. This standard is to provide a specific measure of dimensional changes under well-defined conditions. B. SAEJ286 This five-page standard entitled SAE No. 2 Clutch Friction Test Machine Guidelines is to specify the requirements for a friction test machine to evaluate friction characteristics of wet friction clutch systems using automatic transmission fluids. It also outlines testing procedures to be employed. C. SAEJ373 This two-page standard entitled Housing Internal Dimensions