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There are several characteristics that you need pay attention to when selecting a motor but voltage, current, torque, and velocity (RPM) are most important. Current is what powers the motor and too much current will damage the motor. For DC motors, operating and stall current are important.

## How do I choose the right motor?

10 Steps to Choosing the Right Motors for Your Robotic Project

- Step 1: Determine the total weight and traction requirements. …
- Step 2: Calculate the traction wheel rotation speed. …
- Step 3: Calculate the traction motor power/torque. …
- Step 4: Calculate the lifter motor rotation speed.

## How do I choose an electric motor?

To determine the technical specifications, it will be necessary to determine the power, torque and speed of the motor. In order to determine the size, you must know how much space the motor will take up and how it is mounted (i.e.how it will be fixed in the system).

## How do I choose an electric motor size?

Divide the motor speed by the required speed and round down to get a starting gear ratio. Then divide the required torque by the gear ratio to find the newly required torque. This will help you narrow the choices down to a few select motors.

## How do I choose a motor and gearbox?

Basics of Gearbox Selection

- Service Factor. Before sizing an application, the customer should determine the service factor. …
- Ambient Temperature and Environment. …
- Shock Load or Type of Load. …
- Output Style or Mechanism. …
- Output Shaft or Hollow Bore Size. …
- Housing Styles.

## How do I choose an engine horsepower?

Determining actual motor horsepower

Use this formula to estimate motor horsepower: Horsepower (hp) = Voltage x Amerage x % EFF x power factor x 1.73/746.

## What are the different types of motors?

Types of Electric Motors

- AC Brushless Motors. AC brushless motors are some of the most popular in motion control. …
- DC Brushed Motors. In a DC brushed motor, brush orientation on the stator determines current flow. …
- DC Brushless Motors. …
- Direct Drive. …
- Linear Motors. …
- Servo Motors. …
- Stepper Motors.

## How do I choose a pump motor?

When choosing a motor for a centrifugal pump, you must consider the impeller size, maximum capacity, specific gravity of the fluid, and service application in case API requirements apply. If you take these things into account, you will select the right motor for your centrifugal pump application.

## How long can an electric motor run continuously?

In the range of six months to a year, you should expect the motor to run continuously for the life of the brushes. I thought the motor was too small to have its brushes changed by an electrician.

## How do you choose torque for a motor?

To calculate load torque, multiply the force (F) by the distance away from the rotational axis, which is the radius of the pulley (r). If the mass of the load (blue box) is 20 Newtons, and the radius of the pulley is 5 cm away, then the required torque for the application is 20 N x 0.05 m = 1 Nm.

## How do you choose RPM for a motor?

How to Calculate Motor RPM. To calculate RPM for an AC induction motor, you multiply the frequency in Hertz (Hz) by 60 — for the number of seconds in a minute — by two for the negative and positive pulses in a cycle. You then divide by the number of poles the motor has: (Hz x 60 x 2) / number of poles = no-load RPM.

## How do DC motors work?

But how do DC motors work? … In a DC motor, the stator provides a rotating magnetic field that drives the armature to rotate. A simple DC motor uses a stationary set of magnets in the stator, and a coil of wire with a current running through it to generate an electromagnetic field aligned with the centre of the coil.

## What is sizing of motor?

Motor Sizing Motor sizing refers to the process of picking the correct motor for a given load. … If a motor is too small for an application it may not have sufficient torque to start the load and run it up to the correct speed.

## How do I know what power my engine needs?

By taking the voltage and multiplying it by the associated current, the power can be determined. A watt (W) is a unit of power defined as one Joule per second. For a DC source the calculation is simply the voltage times the current: W = V x A.