haust fan fitted with 900 mm diameter pulley is driven by a flat belt from a 30 kW, 950 r.p.m. squirrel cage motor. The pulley on the motor shaft is 250 mm in diameter and the centre distance between the fan and motor is 2.25 m. The belt is 100 mm wide with a coefficient of friction of 0.25. If the allowable stress in the belt material is not to exceed 2 MPa, determine the necessary thickness of the belt and its total length. Take centrifugal force effect into consideration for density of belt being 950 kg/

Q: A single-threaded power screw of square form is to raise a load of 90KN at the rate of 360mm/min.…

A: The given information in the problem are shown in the following attached image:

Q: An ACME-thread power screw is considered. The coefficient of friction of the thread is mu. The…

A: Given: The major diameter, d = 1.75 in The screw lead, l = 0.25 in The coefficient of friction, µ =…

Q: A double-threaded power screw is used to raise a load of 5 kN. The nominal diameter is 60 mm and…

A:

Q: OA double-threaded ACME screw, with a major diameter of 40 mm and a pitch of 4 mm, is used to lift a…

A: The power screw in this application exhibits self-locking behavior due to the lead angle (3.82°)…

Q: 1. A single-threaded 25-mm power screw is 25-mm in diameter with a pitch of 5mm. A vertical load on…

A:

Q: A trapezoidal-threaded power screw with a crest diam- eter of 30 mm and single thread is used to…

A: Given : crest diameter, dc = 30 mm  load, W = 50 KN collar mean diameter, D = 40 mm  coefficient of…

Q: Two identical 4 in. major-diameter power screws (single-thread) with modified square threads are…

A: Given:f = 0.1fc = 0.24v = 3ft/min = 36 in /minTo find:Power required to drive each screw when the…

Q: The clutch of a motor car is required to transmit 9 kW at 3500 rpm. It is of single-plate type, with…

A: Given: The power of the motor is 9 kW. The coefficient of friction is 0.25. The maximum pressure is…

Q: 2. A cylinder with a nominal 2.5 inch ID, a 4.0 inch OD, and a 3.0 inch length is to be mated with a…

A: To calculate the maximum amount of torque transmission and to determine the yield condition of a…

Q: 4 dia 16 R. 3. The grip strengthener shown in Fig. 1 is composed of a helical spring made of 4 mm…

A: Given: Diameter, dw=4 mmouter diameter, OD=32 mmnumber of turns, Nb=3.5design factor, ns=Syσs=1.1

Q: rpm. contact between the belt and pulley is 144°, the coefficient of friction between belt and…

A:

Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.