A V-belt drive transmits 20kW from an electric motor running at 1440rpm to the main shaft of a roving machine. The motor and main shaft pulleys have 300 & 600 rpm respectively. The coefficient of friction between belt and pulley is 0.25. The centre distance between the shafts is 1000mm. The top width, thickness, section angle and density of belt and permissible tension on the belt are 22mm, 14mm and 40deg, 0.97gcm-2 and 600N respectively. How many belts are needed? Calculate the length of a belt needed

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Q: haust fan fitted with 900 mm diameter pulley is driven by a flat belt from a 30 kW, 950 r.p.m.…

A: Given data: P = 30 kW N2 = 900 rpm N1 = 950rpm, d1 = 250 mm x = 2.25 m b=100 mm=0.1 m

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Q: 8. A cross belt arrangement has centre distance between pulleys as 1.5 m. The diameter of bigger and…

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A: Answer: Given, T = 2000Nam = 2000 x 103 N - mm         τ= 50 MPa  σ t = 90MPa   No ,of bohts , N = 6…

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A: C=5 mD=3 md=3 mTmax=4 KNμ=0.3N=700 rpmVelocity of belt, V=π*d*N60V=π*3*70060=109.95 m/s

Q: Jestion 3 A flat belt drive connects two pulleys 5 meters apart: The 2m pulley diameter driver…

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Q: Q1) The mean diameter of the driving pulley for a vee-belt drive with two belts is 110 mm. The…

A: dmean=110 mmP=4.4 KWN=1500 rpmμ=.32Angle of lap θ=160°A=120 mm2

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Q: Example 10: A rope drive transmits 600 kW from a pulley of effective diameter 4 m, which runs at a…

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Q: An electric motor drives a compressor by use of V-belt. The pulley diameter of the compressor shaft…

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Q: HW9 In an engine governor of the Porter type, the upper and lower arms are 300 mm and 350 mm…

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Q: A screw-jack has a square thread of mean diameter 6 cm and pitch 0.8 cm. The coefficient of friction…

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Q: - A multiple disc clutch has three discs on the driving shaft and two on the providing four pairs of…

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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.