Compound Wheel And Axle.
Compound Wheel And Axle Student quickly grasp a clear understandi ng of the mechani cal advantage of the wheel and axle using this all mettallic smooth running apparatus. The wheel is of 35 cm dia and axle in 3 steps of 20, 10 and 5 cm reducing diameter supported on ball bearings in iron brackets. The base is provided with holes to fix the apparatus on wall. Complete with snatch pulley block, cord and hooks. Weights are not included.