Calculating Required Torque Rating for Clutch Attached to Electric Motor Shaft

What is the required torque rating for a clutch to be attached to an electric motor shaft running at 1150 rpm?

The required torque rating for a clutch to be attached to an electric motor shaft running at 1150 rpm is dependent on the specific application and load requirements. To determine the required torque rating, we need to calculate the torque needed to drive the fan.

Calculating Torque for Driving the Fan

The formula to calculate torque is:

Torque (in lb-ft) = (HP x 5252) / RPM

Substituting the given values:

Torque = (0.50 x 5252) / 1150

Torque = 2.29 lb-ft

This means that the clutch must be able to transmit at least 2.29 lb-ft of torque to the fan. It is recommended to choose a clutch with a slightly higher torque rating to ensure reliability and prevent slip. Additionally, the type of clutch needed will also depend on the specific application and operating conditions. For example, if the load on the fan varies, a clutch with adjustable torque settings may be required. If the clutch will be subjected to frequent start-stop cycles, a clutch with high durability and low wear characteristics would be ideal. Overall, the required torque rating for a clutch depends on the load requirements and operating conditions, and it is important to choose a clutch that is appropriately sized and suited for the specific application.
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