- Test Machinery
- Test Services
- Radial Fatigue Testing
- Cornering Fatigue Testing
- Impact Testing
- Biaxial Fatigue Testing
- Uniformity & Static Imbalance Testing
- Motorcycle Wheel Testing
- Belgium Test Services
- Fastener Testing
- Deformation Testing
- Trim Testing
- Stiffness/Modal Testing
- Strain Gauge and Data Acquisition
- Environmental Testing
- Calibration & Machine Maintenance
- Wheel Forensics
Radial Fatigue Testing
ITS has radial fatigue stations capable of testing from 300-38,000 lb test loads, in sizes from 10”-26” diameter. Variable speed capability allows us to balance test time with tire life. We have recently added a two-station machine that is capable of 38,000 lbs on each station. The machine uses lower speed, tire cooling and high load capacity for super single wheel testing.
Cornering Fatigue Testing
Commonly known as Rotary Fatigue or Bending Moment Fatigue, this test evaluates the wheels ability to sustain fatigue caused by vehicle cornering. ITS has two types of cornering machines: rotating bending and eccentric mass.
ITS has impact machines capable of performing Lateral Impact and Inner Rim Impacts to the following specifications, while recording inboard and outboard impact forces, deflection and velocity.
Biaxial Fatigue Testing
ITS has four Biaxial Fatigue test machines equipped to test wheels, spindles, hubs and bearings. Having co-developed the SAE J2562 passenger car and light truck load files, our experience includes developing sports car wheels, forensic evaluation of wheel fastening systems and A-to-B comparison testing to find inboard flange hacksaw cracks.
Uniformity & Static Imbalance Testing
Uniformity analyzers measure the radial and lateral runout. Radial run-out is the difference between the high spot and the rim average on the outer or inner wheel rim. It is best measured at the bead seat. Lateral runout is the side-to-side wobble of the wheel on the outer or inner rim. Too much runout in either case can cause noise and handling issues.
Motorcycle Wheel Testing
ITS can conduct all four standardized motorcycle wheel tests to JASO T 203-85. The cornering and radial fatigue tests are comparable to those used on passenger cars along with the torsion test required in the specification. A radial impact test is also specified requiring striker geometry drop height and fixturing of the wheel that makes the test unique.
Composite Wheel Testing
ITS can conduct all the required tests from the new Composite Wheel Test Procedure Specification SAE J3204.
- Wheel Fastener Tests
- Biaxial Fatigue
- Cornering Fatigue
- Elevated Temperature Cornering Fatigue
- Radial Fatigue
- Electrical Resistivity
- Lateral Impact
- Lateral Stiffness
- Pressure Resistance Test
Belgium Block Testing
Simulates the Belgium block testing on the proving grounds and introduces a vibration into the wheel trim. The purpose of the test is to show that a part is properly restrained for service.
We have a torque tension rig set up to accommodate a number of fastener tests. Most fastener tests set out to prove the fastener joint works as intended for the life of the wheel, even after the tires have been rotated or other maintenance has been performed.
Most deformation tests are designed to replicate road hazard damage to the wheel or the effect of forces on a wheel in service.
ITS offers various trim tests that can replicate the effects of road hazards and debris on the appearance of a trim piece and the durability of the finish.
Helping to understand the resonant frequencies in a wheel that might become apparent to a vehicle operator through vibration.
Strain Gauge and Data Acquisition
When it comes to technology, ITS has found a way to incorporate the latest and greatest into our testing capabilities. Strain Gage Application and data acquisition can be done in-house which allows for more customization and faster turnaround time. Data acquisition is done either wirelessly or through a slip ring.
High-speed video up to 240fps and up to 4 angles can be used to better understand test phenomena. We have light banks and rigging to capture all sides of a test. High-speed video is especially useful for impact testing because you can slow it down and see each step of the impact event in detail.