Question: The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a pair of shoes.

The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a pair of shoes. The actuating mechanism is to be arranged to produce the same force F on each shoe. The face width of the shoes is 75 mm. The material used permits a coefficient of friction of 0.24 and a maximum pressure of 1000 kPa.
(a) Determine the actuating force.

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a Given 0 10 0 75 0a 75 Pa 10 Pa f 024 b 0075 m shoe width a 0150 m r 0200 m d 0050 m c 0165 m Some ... View full answer

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