JB/T 51120-1999

Product quality grading of engine crankshaft

Product quality grading of engine crankshaft

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, Dimension, Balance, Fatigue

Scope

Crankshaft production, processing inspection, matching grading

Applicable to small & medium engine crankshaft

Normative References

GB/T 2828.1-2012

Keywords

Crankshaft dynamic balance fatigue strength geometric tolerance

Application Summary AI generated

1. Graded by dynamic balance precision and geometric tolerance

2. Controls fatigue strength and surface hardness

3. Standardizes flaw detection and balance test

4. Unified sampling rules.

Standard Timeline

replaces 51120.3-94
replaces JB/T 51120.1

Related Standards

JB/T 51115-1999 Product quality grading of engine oil pump assembly JB/T 51117-1999 Product quality grading of engine fuel injector assembly JB/T 51104-1999 Product quality grading for small and medium power diesel engines 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 51106-1999 Quality grading for internal combustion engine parts JB/T 51113-1999 Product quality grading of engine air filter assembly JB/T 51118-1999 Product quality grading of engine plain main bearing

Content extracted by AI. Not officially verified.