Why the gear drives said to be power transmitting device?While it transmitting motion only.

Answer Posted / dwivedi4uforever

For it suppose a belt drive moving from tight side to slack side then then tension in tight side T1 and slack side T2 that is why (T1-T2) * velocity(motion) = N-m/s = jule/s = power. From here it is said to be power transmitting device.

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