A single-strand roller chain drive connects a 50-hp engine to a lawn waste chipper/shredder, as shown below. As the engine operates at 1000 rpm, the shredding teeth should rotate at 250 rpm. The driven sprocket has 60 teeth. Determine the chain speed.

Select a suitable Vbelt drive for a flour mill transmitting power from a motor of 10 kW rotating at 1,440 rpm using suitable charts. The mill rotates at 400 rpm for a service of 22hrs per day and is to be arranged in minimum space with center distance of 0.5m. Assume that the pitch diameter of small pulley is 100mm.

QUESTION 10 A motor-cycle engine crankshaft has an angular velocity of 523.6 rad/s and is in third gear of ratio 1.62:1. The final chain reduction is 4.7:1 and the effective wheel diameter 0.73 m. Calculate the road speed of the machine in km/h.

A simple gear train of 30 and 40 teeth for pinion and gear wheel respectively is used to drive an electric wheelchair at a velocity that is double the maximum velocity of slip. The pinion has an equal addendum as the gear wheel ,  a module of 3 mm and a pressure angle of 14.5 ° . The wheelchair  has a maximum velocity  of 5 m/s when is pinion rotates at 800 r.p.m . Calculate: 1.1) The magnitude of the velocity of slip of gear mesh. 1.2) The angular speed of the gear wheel in rad/s. 1.3) The maximum length of a path of the approach in mm. 1.4) The length of a recess  in mm. 1.5) The addendum of the gear in mm. 1.6) The constant ratio.