What does stall torque refer to?

Stall torque is the torque produced by a mechanical or electro-mechanical device whose output rotational speed is zero, whereas torque can be defined as the mechanical work generated by the turning effect produced when force is applied to a rotational axis.

What is continuous torque?

The continuous torque indicates how much torque the motor can generate over an indefinite period of time. These ratings represent thermal limits in the motor. When a motor outputs power, it does so with less than 100% efficiency. The power that is lost in the motor translates to heat.

What is the difference between peak torque and continuous torque?

Continuous rated torque is the motor’s continuous torque that it can output at rated speed, close to the max speed of the motor. Peak torque is the motor’s maximum torque it can output for a short period of time, typically for acceleration/deceleration or overcoming friction.

What is stall torque and rated torque?

The rated torque is the maximum continuous torque that the motor produces at rated RPM when working normally and without overheating, whereas the stall torque is produced by the motor when RPM is 0 while the load is attached or at starting. DC Motors manufacturers usually provide the stall torque rating.

How is stall torque measured?

The stall torque can be measured by clamping a lever to the motor and loading the lever with weights until the motor does not move, but this method is difficult as running the motor at stall for more than a few seconds can cause it to overheat. At stalling condition, motor maximum torque is lower than load torque.

What is stall torque in servo?

What is torque in servo motors? Stall Torque (MO) – The torque that is produced by a device when the output rotational speed is zero or the torque load that causes the output rotational speed of a device to become zero – i.e. to cause stalling.

What is intermittent torque?

intermittent torque [Nm] is the maximum torque that can be applied for short time to the output shaft. If it is exceeded, the life span is significantly shortened.

Does voltage affect stall torque?

No-load speed is the speed at which the motor turns when running at nominal voltage and without a load. Stall torque is the maximum torque produced by the motor when running at nominal voltage. Operating a motor at a voltage below nominal generally has no detrimental effect on performance.

What is startup torque?

Starting torque is the torque transferred by the shaft coupling during run-up (see Start-up process). It is calculated based on the ratio of power (P) to angular velocity (ω) and is represented as a rotational speed function.

What is unit of stall torque?

Show 3 more comments. Stall torque is the maximum torque that the unit can supply when in ‘locked shaft’ condition. This doesn’t mean you actually have to mechanically bolt the shaft or anything, it just means the torque that can be dished out from a dead stop.

What is rated rpm?

Maximum rated RPM means the engine speed measured in revolutions per minute (RPM) at which peak net brake power (SAE J–245) is developed for motorcycles of a given configura- tion.

How does current affect torque?

In general for permanent magnet motors the torque produced will be proportional to the current flowing through armature and the no-load speed will be proportional to the voltage.

What is the meaning of the word standstill?

Definition of standstill : a state characterized by absence of motion or of progress : stop brought traffic to a standstill : a state in which all activity or motion is stopped : the condition of not being active or busy : stop Business was at a standstill. : a state characterized by absence of motion or of progress : arrest cardiac standstill

What is the difference between stall torque and rated torque?

Most manufacturer’s if they list a continuous torque and don’t tell you if it’s at stall or at speed, is typically at stall. The rated torque takes into account the spinning (magnetic) losses and thermal (I2T) losses of the motor. At 0 speed, these losses are 0 and thus the stall torque is higher than the rated torqued.

What is the difference between continuous rated torque and continuous torque?

Continuous rated torque is the motor’s continuous torque that it can output at rated speed, close to the max speed of the motor. This is a better judge of the motor’s performance as it’s the motor’s torque at speed. Continuous stall torque is the motor’s continuous torque at 0 speed (at stall).

What is the definition of torque?

Definition of torque. (Entry 1 of 3) 1 : a force that produces or tends to produce rotation or torsion an automobile engine delivers torque to the drive shaft also : a measure of the effectiveness of such a force that consists of the product of the force and the perpendicular distance from the line of action of the force to the axis of rotation.

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