Trailer axle
1 Scope
This standard specifies the main technical parameters, technical requirements, test methods, inspection rules, marking and accompanying documents of trailer axle.
It is applicable to road freight trailer axle with rated axle load on a single axle larger than or equal to 1.5t.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including all amendments) applies.
GB/T 1958 Geometrical Product Specifications (GPS) - Geometrical tolerance - Verification
GB/T 4095 Disc wheels for trucks - Dimensional characteristics of attachment on hub
GB 5763 Brake linings for automobiles
GB/T 15822.1 Non-destructive testing - Magnetic particle testing - Part 1: General principles
GB/T 24607 Rolling bearings - Test and assessment for life and reliability
GB/T 25767 Rolling bearings - Tapered rollers
GB/T 31970 Performance requirements and bench test methods for air brake caliper assemble of automobile
GB/T 34422 Brake disc for automobile
JB/T 5000.3 Heavy mechanical general techniques and standards - Part 3: Weldment
QC/T 239 Specifications and bench test methods for commercial vehicle service brake
QC/T 484-1999 Automobiles - Paint coating
QC/T 1033 Air brake - Performance requirements and bench test methods of external automatic brake adjuster
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
trailer axle
device used to support all or part of the gravity of the trailer and transfer various external forces and reaction forces to ensure the normal driving of the trailer, which mainly includes axle body assembly, braking device and hub assembly
3.2
rated axle load
maximum allowable load that can be borne by the axle as specified by the manufacturer
3.3
wheel track width
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Main technical parameters
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking and accompanying documents
JT/T 475-2020, JT 475-2020, JTT 475-2020, JT/T475-2020, JT/T 475, JT/T475, JT475-2020, JT 475, JT475, JTT475-2020, JTT 475, JTT475
Introduction of JT/T 475-2020
Trailer axle
1 Scope
This standard specifies the main technical parameters, technical requirements, test methods, inspection rules, marking and accompanying documents of trailer axle.
It is applicable to road freight trailer axle with rated axle load on a single axle larger than or equal to 1.5t.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including all amendments) applies.
GB/T 1958 Geometrical Product Specifications (GPS) - Geometrical tolerance - Verification
GB/T 4095 Disc wheels for trucks - Dimensional characteristics of attachment on hub
GB 5763 Brake linings for automobiles
GB/T 15822.1 Non-destructive testing - Magnetic particle testing - Part 1: General principles
GB/T 24607 Rolling bearings - Test and assessment for life and reliability
GB/T 25767 Rolling bearings - Tapered rollers
GB/T 31970 Performance requirements and bench test methods for air brake caliper assemble of automobile
GB/T 34422 Brake disc for automobile
JB/T 5000.3 Heavy mechanical general techniques and standards - Part 3: Weldment
QC/T 239 Specifications and bench test methods for commercial vehicle service brake
QC/T 484-1999 Automobiles - Paint coating
QC/T 1033 Air brake - Performance requirements and bench test methods of external automatic brake adjuster
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
trailer axle
device used to support all or part of the gravity of the trailer and transfer various external forces and reaction forces to ensure the normal driving of the trailer, which mainly includes axle body assembly, braking device and hub assembly
3.2
rated axle load
maximum allowable load that can be borne by the axle as specified by the manufacturer
3.3
wheel track width
Contents of JT/T 475-2020
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Main technical parameters
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking and accompanying documents