JB/T 51118-1999

Product quality grading of engine plain main bearing

Product quality grading of engine plain main bearing

Standard Type
JBT
ICS
27.020
CCS
J92
Status
N/A
Issue Date
1999-12-30
Implementation
2000-06-01
Centralized Committee
National Internal Combustion Engine Committee
Issuing Authority
State Bureau of Machinery Industry

Catalogue

Scope, References, Indexes, Test, Inspection

Scope

Engine bearing production, incoming inspection, grading

Applicable to engine plain main bearing

Normative References

GB/T 2828.1-2012

Keywords

Main bearing alloy layer fatigue strength clearance grading

Application Summary AI generated

1. Graded by alloy bonding strength and fatigue strength

2. Controls dimensional precision and surface roughness

3. Evaluates durability and corrosion resistance

4. Adopts national sampling standard.

Standard Timeline

replaces 51118.3-94
replaces JB/T 51118.1

Related Standards

JB/T 51119-1999 Product quality grading of engine connecting rod assembly JB/T 51117-1999 Product quality grading of engine fuel injector assembly JB/T 51115-1999 Product quality grading of engine oil pump assembly JB/T 51113-1999 Product quality grading of engine air filter assembly JB/T 51114-1999 Product quality grading of engine paper element fuel filter JB/T 51116-1999 Product quality grading of engine fuel injection pump JB/T 51111-1999 Product quality grading for paper element oil filter assemblies for internal combustion engines JB/T 51120-1999 Product quality grading of engine crankshaft

Content extracted by AI. Not officially verified.