JB/T 51121-1999

Product quality grading of tractor disc brake

Standard Type

JBT

ICS

65.060.10

CCS

T63

Status

N/A

Issue Date

1999-12-30

Implementation

2000-06-01

Centralized Committee

National Tractor Standardization Committee

Issuing Authority

State Bureau of Machinery Industry

Catalogue

Scope, References, Performance, Test, Inspection

Scope

Tractor brake production, factory inspection

Applicable to tractor disc brake

Normative References

GB/T 2828.1-2012

Keywords

Brake braking torque friction coefficient durability grading

Application Summary AI generated

1. Three grades with improved braking efficiency

2. Controls friction coefficient stability and fade recovery

3. Includes high/low temperature and durability test

4. Classified defect sampling.

Standard Timeline

replaces JB/T 51121.1

replaces 51121.3-94

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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.