Tire and Wheel

Smithers Rapra has demonstrated expertise in tire and wheel testing since 1925. We offer a broad range of product testing, material analysis and consultancy services.

The legislative demands for accurate tire performance are critical. Tires are arguably the most important component for ride, handling, safety of cars and trucks. In fact, the tires are the only mechanical link between the vehicle and the ground. Tires must transmit steering, acceleration and braking forces to the road, often under adverse conditions.

Smithers understands the importance of tire mechanics, and we routinely help our customers with testing to meet government requirements. We assist businesses and individuals with tire testing while helping them understand tire construction, material selection and lifetime expectations. We can analyze wheel rims help you to understand the life of the wheel, liability position and warranty potential. Extensive physical testing of tires and wheels in our labs may be augmented by compound development/analysis and failure analysis services.

tire and wheel analysis and testing services

Areas of Evaluation

Inter-component Adhesions

  • Peel forces
  • Tread
  • Belts
  • Body Ply
  • Sidewalls

Reinforcing Components

  • Number of reinforcing layers
  • Cord type / construction
  • Cord break strength
  • Cord concentration
  • Cord angles
  • Total strength

Tire Performance

  • Tire valves
  • FMVSS-109/119/139, NOM, etc.
  • Force & Moment
  • Rolling resistance
  • Indoor tread wear
  • Laser profilometry
  • Characterization for modelling
  • Snow and ice traction

Rubber Components - Composition Analysis

  • Polymer Type
  • % Silica
  • % Plasticizer
  • % Polymer
  • % Carbon black / type
  • % Ash
  • Many others

Rubber Components - Physical Properties

  • Stress / strain
  • Hardness
  • Ozone and oxygen resistance
  • Abrasion resistance
  • Dynamic mechanical analysis

Wheel Testing

  • Fatigue
  • Impact
  • Rim flange strength
  • Strain gauging / stress analysis
  • Rim contour / dimensional checks
  • Metallurgical tests
  • Coatings analysis
  • Corrosion analysis
  • Forensic evaluation
  • Burst tests