This standard specifies the structural type, technical requirements, inspection rules and marking, packaging, transportation and storage of the overall single-layer rocker arm bushing. This standard is applicable to the overall single-layer rocker arm bushings of tractors, automobiles, construction machinery, marine and stationary reciprocating piston internal combustion engines with a cylinder diameter within 200 mm. Internal combustion engine arm bushings rolled with bimetallic materials may be implemented in accordance with JB/T 7292.2.
JB/T 7292.3-1994 history
2018JB/T 7292.3-2018 Bushings for internal combustion engines - Part 3: Specifications for rocker bushings