This SAE Standard specifies the essential dimensional features of N, NM, E, and EM scraper piston ring types. Dimensional Tables 7 and 8 offer the choice of two radial wall thicknesses: a. radial wall thickness "regular" (table 7); and b. radial wall thickness "D/22" (table 8). The requirements of this document apply to scraper rings for reciprocating internal combustion piston engines up to and including 200 mm diameter. They may also be used for piston rings of compressors working under similar conditions.
SAE J 1999-1998由美国机动车工程师协会 US-SAE 发布于 1998-04-01。
SAE J 1999-1998 在中国标准分类中归属于: T12 机体与运动件。
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