How Do I Interpret DC Motor Specifications?

sir, i am a engineering student and i am making a project on HOVERBOARD , i want the specification of the DC motor which can bear the weight of 80-100 kg with maximum speed of 10-15km/hr. and work for 2-3 hours. please give the specification of battery (volts and mAh).
i have seen a video on youtube in which specification of motor was given 12V ,300 rpm but torque and load bearing and battery specification was not given . please help me sir as ihave to submit my project on 23 sep. . email- [email protected]

@Ed F The rated torque does not provide for a 100% duty cycle; it may either be the torque at maximum efficiency or (less likely) the torque at maximum power. If it’s a DC motor, the greatest duty cycle would be achieved when the motor is operated at maximum efficiency (for lowest heat loss). It all comes down to heat buildup which varie based on torque, voltage and how long it is used.

@MOHIT We suggest some initial calculations to get torque and RPM: https://www.robotshop.com/blog/en/drive-motor-sizing-tool-9698

SIR , i am making hoverboard .i am using 12v 300rpm,23kgfcm motor and a battery of 12v 7Ah , will it bear the load of 70kg ,if not then by increasing battery to 12v 12 Ah will do so. i am unable to get a high torque motor .

@MOHIT Do you mean a hoverboard similar to a Segway without the handle (one wheel on either side?) If so, then the power should be split between two motors, not just one. Additionally, the weight of the passenger and robot should not be directly on the motor’s output shaft unless it’s very well supported.

Hi Sir, I am doing 1 project in which I need a DC motor to sustain load of min 100 gm & max upto 300 gm. Also, I want to control its speed and measure the Voltage & current. Please let me know if you want any more details and support me in the same.

hii sir, i m working on a project in which there is a req of dc motor which can lift 250 gm load . also i want to controll the speed of motor and monitor the readings on oscilloscope plz give me direction regarding the same.thank you…

@Shreyas Bhagwate A DC motor provides “torque” as opposed to “force”. Torque is measured as force multiplied by distance. We offer voltage and current sensors here: https://www.robotshop.com/en/current-voltage-sensors.html

@shrut A DC motor provides “torque” as opposed to “force”. Torque is measured as force multiplied by distance. You control speed and direction of a DC motor with a DC motor controller. What do you want to monitor?

I want to monitor current & voltage. Also I want to control the speed of motor. Please provide formula to calculate motor rating suitable for the 100 - 300 grams of load.

@shrut We offer current and voltage sensors here: https://www.robotshop.com/en/current-voltage-sensors.html In terms of load - you provided a force as opposed to a torque, and no application details, so unfortunately we cannot help.

Sir. I need geared dc motor with resolution of encoder 26. How should I ask the shopkeeper about this.

6-9 DC motor heavy duty, max amp 4.7. What kind of ac/dc converter should I use??? I tried a 6v 5 amp but nearly distroyed my project…

@Sujay You can find our selection of DC motors with encoders here: https://www.robotshop.com/en/gear-motors-with-back-shaft.html

@Angelos Why are you using a regulator at all? You should use a 6-9V DC power supply or battery capable of 5A or more. If it consumed 5A, that likely means the motor cannot provide enough torque for your application.

i have 20KW bldc motor ?? how do i find the right battery for my motor?

@Mohan You need to know the operating voltage range of the motor as well as the nominal voltage. Dividing the power by the voltage will give you your peak current. The voltage will determine the voltage of your battery pack, while the current will determine the requirements for the capacity and required continuous discharge rating.

I need a 2 geared dc motor with resolution of encoder 26 please tell me how ask in the shop about this specification.

@SUJAY .B.M Not sure what you mean by “resolution 26” - you mean 26 counts on the rear shaft? Note that it’s important to know which motor you have to know which encoder is compatible: https://www.robotshop.com/en/encoder-disks.html

Coleman, I need a little help. I have a static (plastic) model that I am trying to give a more alive look. I have want to install a dc motor inside the engine to turn a metal prop, 4 blade 18cm and weight 100gm. I need it to turn reasonably convincing from slow start up to running… not too fast or I’ll have a kit again. The prop is also not balanced so another reason to be mindful of not too fast. I only have a small space H(1.5cm) x width (2cm) and depth 4cm… I am struggling to interpret what DC motor I could use that won’t either struggle and burn out or leave me with a kit. What sort of torque or rated load should I look at, please?