Numerical on belt drive class iii PDF

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Nu Nume me meric ric ricaal on Belt Drive 27 May 2020

10:53

A belt drive transmits 8 kW of power from a shaft rotating at 240 rpm to another shaft rotating at 160 rpm. The belt is 8 mm thick. The diameter of smaller pulley is 600 mm and the two shafts are 5 m apart. The coefficient of friction is 0.25. If the maximum stress in the belt is limited to 3 N/mm2. Find the width of the belt for (i) open belt drive and (ii) crossed belt drive.

A flat belt drive transmits 50 kW at 25 m/s. The mass of the belt is 1.75 kg per metre of belt length and width the belt is 180 mm. The belt drive is cross belt drive having driver pulley of 350 mm and driven pulley of 1050 mm. The centre distance between two pulleys is 5 m. Calculate the length of belt; angle of contact; belt tensions and thickness of belt. Take mass density of belt= 1000 kg/m3 an d coefficient of friction between belt and pulley surface = 0.35.

In a belt drive the mass of belt is 1 kg/m length and its speed is 6 m/sec. The drive transmits 9.6 kW of power. Determine th e initial tension in the belt and strength of belt. The coefficient of friction is 0.25 and angle of lap is 220°....