A cone clutch with a cone angle of 12° transmits 53 kW at 1300 rpm. The coefficient of friction of linings is 0.16. Determine the axial spring force necessary to engage the clutch in N if the mean diameter of the active conical sections is 250 mm.

A cone clutch has cone elements at an angle of 12o. The clutch transmit 25 HP at a speed of 1200 rpm. The mean diameter of the conical friction section is 16 in and the coefficient of friction is 0.35. Find the axial force needed to engage the clutch.

A multi-plate clutch has four pairs of frictional surfaces, each of internal diameter 120 mm and external diameter 200 mm. If the coefficient of friction is 0.3 and the uniform pressure condition can be assumed, what is the required spring force when the plates transmit 20 kW at 1400 rpm?

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A conical clutch has an inclined angle of 120. The outer and inner diameters are 80 mm and 20 mm respectively. Calculate the force required to press the two halves together if it is to transmit 200 W at 600 rev/min. The coefficient of friction is 0.3. Use both the uniform wear theory and the uniform pressure theory.

A leather faced cone clutch transmits power at 500 rpm. The semi-coneangle a is 12.5°. The mean diameter of the clutch is 300 mm, while the facewidth of the contacting surface of the friction lining is 100 mm. The coefficientof friction is 0.2 and the maximum intensity of pressure is limited to 0.07N/mm2. Calculate the force to engage the clutch and the power transmittingcapacity.

Determine the principal dimensions of a cone clutch faced with lather to transmit 40 kW at 800 r.p.m. from an electric motor to an air compressor. Sketch a sectional front view of the clutch and provide the main dimensions. Assume that the semi-angle of the cone is 10°, the coefficient of friction is 0.3, mean diameter of cone is (7-10)d, where d is the diameter of the shaft, allowable normal pressure for lather and cast iron is 0.1 to 0.2 N/mm, shear stress 100 N/mm², load factor is 2 and the mean diameter to face width ratio is 6.

A multiple V-belt drive is required to transmit 4 kW. The smaller pulley of the system is150 mm diameter, rotates at 200 rev/min, and has an angle of lap angle of 135°. Thegrove 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

multi-disc clutch has three discs on the driving shaft and two on the driven shaft. The inner diameter of the contact surface is 120 mm. The maximum pressure between the surface is limited to 0.1 N/mm . Find the outer diameter for transmitting 25 kW at 1575 rpm . assume uniform wear condition and coefficient of friction 0.3.

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