A multiple V-belt drive is required to transmit 4 kW. The smaller pulley of the system is 150 mm diameter, rotates at 200 rev/min, and has an angle of lap angle of 135°. The grove angle is 40° and the coefficient of friction between the belt and the pulleys is 0·3. If the maximum tension in any one belt is limited to 800 N, calculate: (a) The number of belts required.  (b) The minimum tension in any one belt.  (c) The required pre-tensioning of the belt.  The centre-to-centre distance between the pulleys is 2 m. (d) Determine to the nearest mm, the required size for the larger pulley. (e) Find the approximate length of the belt

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Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.