Question

A bushed pin type flexible coupling is used to transmit 10 kW power at 720 rpm. The design torque is 150% of rated torque. The keys have square cross-section. The permissible stresses are: For shaft and key material, τ = 66.67 N/mm2 , σc = 200 N/mm2 ; For pin material, τ = 35 N/mm2 , σt = 133 N/mm2 ; For flange material τ = 16.67 N/mm2 . The permissible bearing pressure for rubber bushes is 1 N/mm2 . The number of bushes is 4. Design the bushed pin flexible coupling.                                                                                                                                         

Answer 1

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Answer 2

A bushed pin type flexible coupling is used to transmit 10 kW power at 720 rpm. The design torque is 150% of rated torque. The keys have square cross-section. The permissible stresses are: For shaft and key material, τ = 66.67 N/mm² , σ_c = 200 N/mm² ; For pin material, τ = 35 N/mm² , σ_t = 133 N/mm² ; For flange material τ = 16.67 N/mm² . The permissible bearing pressure for rubber bushes is 1 N/mm² . The number of bushes is 4. Design the bushed pin flexible coupling. Explain Axle, Spindle, Counter shaft and line-shaft with their examples.