01
Wear
Rotor wear, drum wear, lining wear, disc thickness variation, durability and representative city and suburban traffic cycles.
- J2707 · USCT · L-423 · PF.90244
- Los Angeles · Detroit · Phoenix
- Birmingham · Marquette
Brake testing specifications
Supported brake test procedures and applications.
Microface brake test systems can be configured to automate and support a wide range of industry, regulatory and customer-specific procedures across performance, durability, NVH, materials and emissions work.
Performance and durability
Brake NVH
Materials and components
Emissions, drag and DTV
These are example procedures supported by appropriately configured Microface systems. This is not a claim that Microface is an accredited test laboratory or certification body. The precise procedure, instrumentation and machine configuration are confirmed for each project.
02
Structural fatigue and durability
Breaking-strength and cyclic-fatigue testing for brake components and assemblies.
- J2995 · C419 · C441
- GMW18022
03
Performance
Hydraulic, air and electric brakes; friction levels; stopping distance; corrosion and cleanability; torque variation; rotor cracking; regulation; stability control and coastdown.
- J2784 · J2928 · ISO 26867
- GMW14985 · PF.90210 · PF.90244 · L-405
- FMVSS 121 · 122 · 105 · 135 · 126 · 136
- ECE R13H · AMS
04
NVH
Brake squeal during drag and deceleration events across different temperatures, pressures and torque levels.
- J2521 · L420 · 1430
- GMW17427 · PF.90244
05
Materials testing
Quality-control and physical-property testing for friction, wear, compressive strain, shear strength, corrosion resistance, swell and growth.
- J661 · ISO 6310 · ISO 6311 · ISO 6312
- ABNT NBR 9301 · 5505 · 5537
- ASTM B117
06
Frequency response
Component frequency-response investigation using suitable excitation, measurement and analysis equipment.
- SAE J2933 · J3001 · J2598
- L-4375
07
Chemical testing
Measurement workflows for copper, asbestos and other elements in brake friction materials when integrated with the appropriate laboratory instrumentation.
- J2975
08
Caliper fingerprinting
Caliper characteristics including knockback, rollback, fluid displacement and deflection.
- L-4177 · PF.90257
09
Brake emissions
Brake-dust particle size, count, concentration and mass within configured brake-emissions test arrangements.
- WLTP
- CARB
- Application-specific duty cycles
10
Brake drag and DTV
Residual drag, disc thickness variation, brake feel and the brake-system effects relevant to vehicle fuel mileage.
- J2923 · GMW14926 · GMW14351
- PF.90257 · L-13080
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