A 150-mm-wide polyamide F-1 flat belt is used to connect a 50-mm-diameter pulley to drive a...

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Mechanical Engineering

A 150-mm-wide polyamide F-1 flat belt is used to connect a50-mm-diameter pulley to drive a larger pulley with an angularvelocity ratio of 0.5. The center-to-center distance is 2.7 m. Theangular speed of the small pulley is 1750 rev/min as it delivers1.5 kW. The service is such that a service factor Ks of 1.25 isappropriate.

(a) Estimate the centrifugal tension Fc and the torque T.

(b) Estimate the allowable F1, F2, and Fi.

c) Check the friction developmen

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