\u00a9 2023 wikiHow, Inc. All rights reserved. Torque is an effective measurement when seeking to quantify the true mechanical torque on the driveline component, such as a driveshaft or a coupling. 1) k is a unit conversion value you're used to if you've not been using Mathcad. The above tool requires the following data for calculation: Motor-rated power in HP or kW. Since most torque problems don't involve making exact measurements, however, you shouldn't have to worry about this. Gear Reducer Torque = 9550 * Motor power / Rated Power motors input revolution*Ratio* gear reducer efficiency. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Note that the 15% mentioned above is the incline from the horizontal, but that's not the angle . Knowingthe motor power, speed ratio and theuse coefficientand you want to know the torque of the reducer. Torque is the turning force through a radius - with the units Nm in the SI-system and the units lb ft in the imperial system. If youre ready to invest in a high-quality torque measurement system, talk to the experts at Binsfeld. In metric units the rated torque can be expressed as T = 9550 PkW / nr (2) where T = rated torque (Nm) PkW = rated power (kW) nr = rated rotational speed (rpm) Example - Electrical Motor and Braking Torque The torque of a 60 hp motor rotating at 1725 rpm can be calculated as: Tfl = 5252 (60 hp) / (1725 rpm) = 182.7 lb ft NEMA Design Gear Reducer Torque = 9550 * Motor power / Rated Power motor's input revolution*Ratio* gear reducer efficiency. Please read AddThis Privacy for more information. for use in every day domestic and commercial use! The above calculation is the torque equation. Torque = 9550*output power/output speedPower (W) = RPM (rad/s) x Torque (N. m). in). Theoretically, the required maximum working torque must be less than the gearbox rated output torque. Speed. Binsfeld Engineering Inc. All Rights Reserved |, Binsfeld Engineering Inc Celebrates 50 Years, The Ultimate Guide to Marine Shaft Power (Torsion) Meters, Binsfeld Signs TME Solutions as New Sales Agent, Torsional Vibration Measurements on Reciprocating Compressor. Torque is nothing but a momentary force developed at the time of force is applied to the motor. What is the function of the rectifier for brake motors? Here the formula Md = 9550 x P / n to calculate. SI unit of Torque is newton metre (N m) The formula to find the torque is given as Torque = Force x Distance T = r F sin () [1] Method 1 Finding Torque for Perpendicular Forces 1 Find the length of the moment arm. The following formula: Motor power = torque9550motor power input speedspeed ratio use coefficient. n1/n2 = 1450/1.9 = 763 (here is the choice of four-stage motor), Therefore: P1N = P1 * f1 = (500 * 1450) * 1 / (9550 * 763 * 0.85) = 0.117 (KW) so we generally choose 0.15KW speed ratio is about 763 enough to cope with. reducer torque = 9550motor powermotor power input revolutionspeed ratiouse coefficient Knowingthe torque, the output revolution of the reducer and the use coefficient, then how to calculate the motor power of the reducer? By signing up you are agreeing to receive emails according to our privacy policy. Required fields are marked *. You may simulate what engineers in former times did by dividing every variable by the unit the formula is expecting (kN and 1/min) and then at the end add the unit the formula is claiming it result to be. An automotive dyno test stand. When a motor starts and begins to accelerate the torque in general will decrease until it reach a low point at a certain speed - the pull-up torque - before the torque increases until it reach the highest torque at a higher speed - the break-down torque - point. For example, the same 1.5kw motor, the 6-stage output torque is higher than the 4-stage. The 9550 in your formula is probably a conversion factor for some specific unit system, and you should get rid of it. In calculations, torque is represented by the Greek letter tau: . Torque is a vector quantity, meaning it has both a direction and a magnitude. If the input speed is 1500r/min, the output speed is 25r/min, the reduction ratio is: i=60:1. The torque of the reducer is inseparable from the motor speed, power and other factors. Torque is a type of measurement that can be applicable for an object which rotates about an axis. Energy saving calculator e-motors; Ohm's law. ThoughtCo. Since you know that net torque is 0, you know that the 2 forces must add up to 0, so you can construct your equation to find the missing force: For most physics problems, this distance is measured in meters. All of theseparameters are veryimportant. (This is a common problem in these situations.) You know what horsepower the ship is supposed to be capable of, but to determine the ships real horsepower output, youll start by measuring torque. The more torque an engine produces, the greater its ability to perform work. T = 9.55 * P / N, T output torque, P power, N speed, the motor load has a constant power and cross-torque points, constant torque, T constant, then P and N is proportional relationship. Angular speed should be in degrees/second or radians/second. Torque = force x distance. For example, suppose you have a force perpendicular to your object exerting 20 Newtons of force on the object 10 meters from the axis.