What is meant by detent torque?

Stated another way, detent torque is the amount of torque the motor produces when the windings are not energized. The effect of detent torque can be felt when moving the motor shaft by hand, in the form of torque pulsations or cogging.

What is the difference between holding torque and detent torque?

The torque which is caused by the motor when the rated current flow across the winding is known as the holding torque. Detent torque is beneficial for stopping the motor. It also resists the momentum of the moving rotor and the friction in the rotating components.

How do you calculate holding torque?

Holding torque is computed as torque sensitivity x maximum current. Calculate holding torque. Where torque sensitivity is 4.675 Nn/Amp x 10 raised to the power of (-3) and maximum current is 0.35 amps, holding torque is 4.76 x 10 power (-3) x 0.35 which equals 7.93 x 10 power (-3) Nm.

How is torque calculated on a stepper 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.

Why is stall torque important?

It’s even important for drives and power supplies because you have to look at it as an entire system, not just a standalone piece. Without testing stall torque your unable to replicate a real-world environment and leave the customer vulnerable to failures.

Is stall torque the max torque?

Starting torque is the maximum torque that can be produced by a motor in order to start rotational movement of the load. Stall torque is the maximum torque that can be applied to the shaft and cause the motor to stop rotating. When there is no rotation in the motor, the wound coils are acting as a fixed resistance.

How is torque calculated after gearbox?

meters (Kg · m). Gear Reducer Torque = 9550 * Motor power / Rated Power motor’s input revolution*Ratio* gear reducer efficiency. The above calculation is the torque equation. Motor power = torque ÷ 9550 × Rated power’s motor input speed /Ratio /service factor.

How do you find the maximum torque of a stepper motor?

The available torque from a stepper motor falls off sharply as speed increases. The maximum torque is available when the motor is stationary. Using a higher motor power supply voltage will improve torque at higher speeds.

How do you calculate maximum torque of a motor?

Calculate torque (T) using the formula T = 5,252 x horsepower/rpm. The results are measured in pound-feet. For example, if you have a 40-horsepower motor designed to operate at a peak of 1,200 rpm, the formula would be T = (5,252 x 40)/1200 = 175.07 lb. -feet.

How do you calculate torque from stall torque?

You can estimate the rated torque as 20%-30% of the stall torque. For example, if your robot requires 0.5Nm torque, you would need a motor with a stall torque rating of 1.6-2.5Nm.

Does voltage affect stall torque?

But the difference in voltage does not affect the torque. To get more torque to go up a hill, you need to supply your motor with more current. A motor that can take more current (and a battery and motor controller that can supply more current) will give you more torque to help you up the hill.