# Torque on a Shaft: 5HP & 10:1 Gear Ratio

• blake92

#### blake92

If a motor has a horsepower of 5hp and a gear box ratio of 10:1 does the hp through out the system remain 5? or does the gear box multiply the power?

how does this affect the torque?

Power is constant through a transmission and is the product of torque and angle rate.

blake92
Doug Huffman said:
Power is constant through a transmission and is the product of torque and angle rate.
...minus the loss due to inefficiencies. Not to nitpick on you Doug Huffman, but considering the OP's question I think it is worthy of pointing out.

power out = power in * efficiency
torque out = torque in * (input speed / output speed) * efficiency

## What is torque on a shaft?

Torque on a shaft is a measure of the rotational force applied to a shaft. It is typically measured in units of newton-meters (Nm) or pound-feet (lb-ft).

## How is torque on a shaft calculated?

To calculate torque on a shaft, you multiply the force applied to the shaft by the distance from the center of rotation to the point where the force is applied. This is known as the lever arm or moment arm. The formula for torque is torque = force x lever arm.

## What is the significance of 5HP and 10:1 gear ratio in relation to torque on a shaft?

5HP (horsepower) is a measure of the power output of an engine or motor, while 10:1 gear ratio refers to the ratio of the speed of the input shaft to the speed of the output shaft in a gear system. These values can affect the amount of torque produced by a shaft, as torque is directly proportional to power and inversely proportional to gear ratio.

## How does torque on a shaft affect the performance of a machine?

Torque on a shaft is crucial for the proper functioning of many machines and mechanical systems. It determines the amount of force and speed that can be exerted by the machine, and also affects its efficiency and stability. Too much or too little torque can cause problems and potentially lead to mechanical failures.

## What are some practical applications of understanding torque on a shaft?

Understanding torque on a shaft is important in various industries, such as automotive, manufacturing, and aerospace. It is used in the design and operation of engines, motors, turbines, and other mechanical systems. It also plays a role in the maintenance and troubleshooting of these systems.