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(Solved): machine design please step by step solution  2. A single block brake, as shown in Fig. 25. ...



machine design 
please step by step solution 

2. A single block brake, as shown in Fig. 25.38, has the drum diameter \( 250 \mathrm{~mm} \). The angle of contact is \( 90^
2. A single block brake, as shown in Fig. 25.38, has the drum diameter \( 250 \mathrm{~mm} \). The angle of contact is \( 90^{\circ} \) and the coefficient of friction between the drum and the lining is \( 0.35 \). If the torque transmitted by the brake is \( 70 \mathrm{~N}-\mathrm{m} \), find the force \( P \) required to operate the brake. |Ans. \( 700 \mathrm{~N} \) | All dimensions in \( \mathrm{mm} \).


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