What requirements should the test bench for testing the dowty retarder meet?

The test bench for testing the dowty retarder should meet the following requirements:

When testing braking power, resistance power, critical speed and their errors, the total weight of the wheel set should not be less than 5.5t, and the function of simulating the lightest vehicle's wheel weight should be used when testing the lifting height;

When testing the inner dowty retarder, the height of the wheel rim should be 25mm

When testing the outer dowty retarder, the wear depth of the wheel tread should not exceed 2 mm;

Dowty retarder Wheel tread diameter should be 840mm

The thickness of the dowty retarder wheel rim should be 32mm;