JB/T 7292.3-2007 (English Version) PDF

Scope: This standard specifies the structural type, technical requirements, inspection rules and marking, packaging, transportation and storage of integral single-layer rocker arm bushings for internal combustion engines. This standard is applicable to the overall single-layer rocker arm bushing of reciprocating internal combustion engines with a cylinder diameter within 200mm. Internal combustion engine rocker arm bushings rolled with bimetallic materials may be implemented in accordance with JB/T 7292.2.

JB/T 7292.3-2007 Referenced Document

GB/T 1184-1996 Geometrical tolerancing--Geometrical tolerance for features without individual tolerance indications
GB/T 1800.3-1998 Limits and fits--Bases--Part 3: Numerical values tables of standard toleranes and fundamental deviations
GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)*， 2013-02-15 Update
JB/T 7921 Plain bearings. Cast copper alloys for mono-layer and multi-layer bearings
JB/T 7925.1 Plain bearings. Hardness test method for anti-friction alloy of monolayer bearings

2018 JB/T 7292.3-2018 Bushings for internal combustion engines - Part 3: Specifications for rocker bushings
2007 JB/T 7292.3-2007 Internal combustion engine bushes-Rocker bushes-Speciflcation
1994 JB/T 7292.3-1994 Internal combustion engine bushing rocker arm bushing specification