A new field single wheel tester

A new field single wheel testing device, as part of a field testing unit, was developed to perform traction tests on agricultural or cross country tires in the field. The tire testing device is mounted at the rear of a heavy wheeled tractor that also carries a unique soil property testing device at the front. The vertical, horizontal and side forces are measured inside a frame that holds the test wheel, while the torque is measured by a separate linkage system. The tire testing device is capable of testing tires up to 2 m in diameter; it can apply vertical force up to 50 kN, and torque up to 31 kNm.