Differential Wheel And Axle
Specification
(All metal) wheel of 30 cm dia. The axle having dia of 15 & 7.5 cm respectively giving a ratio of 1:2:4 . A steel axle passes through the centre of the wheel which is mounted on ball bearing in cast iron brackets reducing friction to minimum. The base has holes to fix the apparatus on wall complete with snatch pulley block, cord and hooks