3. A double shoe brake, as shown in the figure is capable of absorbing a torque of 1355 N-m. The diameter of the brake drum is 350 mm and the angle of contact for each shoe is 108.2°. If the coefficient of friction between the brake drum and lining is 0.4; find: Express your answer in 3 decimal places.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Topic: Brakes

3. A double shoe brake, as shown in the figure is capable of absorbing a torque of 1355 N-m. The diameter of the
brake drum is 350 mm and the angle of contact for each shoe is 108.2°. If the coefficient of friction between the
brake drum and lining is 0.4; find: Express your answer in 3 decimal places.
Fa
40 40
S
RNI
F₁
250
200
a. The spring force S, in Newtons, necessary to set the brake; and
b. The width of the brake shoes, in mm, if the bearing pressure on the lining material is not to exceed 0.3 N/mm2
Transcribed Image Text:3. A double shoe brake, as shown in the figure is capable of absorbing a torque of 1355 N-m. The diameter of the brake drum is 350 mm and the angle of contact for each shoe is 108.2°. If the coefficient of friction between the brake drum and lining is 0.4; find: Express your answer in 3 decimal places. Fa 40 40 S RNI F₁ 250 200 a. The spring force S, in Newtons, necessary to set the brake; and b. The width of the brake shoes, in mm, if the bearing pressure on the lining material is not to exceed 0.3 N/mm2
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