Need help in finding 12v pmdc brush motor

  • Thread starter dave226
  • Start date
  • Tags
    12v Motor
In summary: They are usually built for low speed applications. Thank you for the information!In summary, the Wondermotor PMDC gear motor is a good option for a wheelchair motor because it is designed for low speed applications.
  • #1
dave226
19
0
Hi,
I am looking for 12V pmdc brush gearmotor either having rated torque of 3.3 N-m or a rated torque of 5N-m (preferable). I founded certain matching specs on Anaheim Automation but the motor seems bulky (around 1.7kg) and have a length of around 17 cm. I need something lesser than or around 15 cm, looking for the least available dimensions and weight, i can prefer more diameter than the length of motor . Please guide me where could i find these motor with a power of around 20-25 W (each). Any help would be of great help.

Thank you!
Dave
 
Engineering news on Phys.org
  • #2
I'll move this from EE to the ME forum for now -- the motor experts tend to be more the ME type...
 
  • #3
Hey Thanks Berkeman!
 
  • #4
We need to know how fast the motor needs to go (rpms) to determine if it needs a gearbox or not.

www.globalspec.com has a very good search engine you can use to find a motor based on specifications you put in.
 
  • #5
Well l am controlling the torque so speed is not concerned much, finding a motor based on its dimensions and the torque as i mentioned above is required. RPM around 60 would be fine for me. I tried global spec, only Anaheim Automation suited me, but it's dimensions are not matching mine.

Thanks!
 
  • #6
Well there are millions of motors out there, I get the feeling you messed up somewhere in your specifications... Did you search for a gearmotor, DC motor, or servo motor? At 60 rpm, you're going to want a gearmotor because high-torque motors usually run in the thousands of rpm range.

What is the application? What range of output shaft speeds will you be looking for? How are you controlling the torque of the motor without caring about the speed? Why is the length of the motor limited but no other dimension is?
 
  • #7
Hey thanks for your concern. I searched for pmdc brush motors with integrated gearboxes. Well I believe that for such motors which i mentioned high torque application result in lower rpm availability. I believe my calculations are perfect and i am looking for wheelchair application. I said that I prefer diameter over length for such motors for what is in the market, so need help to puck up the best. I am using the torque controller.
 
  • #8
Dave,

I sell such a 12v PMDC gear motor. Search for wondermotor and check out the specs. Make sure you don't apply heavy radial and axial bearing loads on the shaft.
 

1. What is a 12v PMDC brush motor?

A 12v PMDC (permanent magnet direct current) brush motor is a type of electric motor that uses a permanent magnet to generate a magnetic field and brushes to conduct current to the motor's armature. It operates on a DC power supply and is commonly used in a variety of applications such as small appliances, power tools, and automotive systems.

2. How does a 12v PMDC brush motor work?

The permanent magnets in the motor create a fixed magnetic field, while the brushes and commutator (a rotating switch) help to direct and control the flow of current to the armature. This produces an electromagnetic force that causes the armature to rotate, generating mechanical energy.

3. What are the advantages of a 12v PMDC brush motor?

Some advantages of 12v PMDC brush motors include their compact size, high torque-to-weight ratio, and efficient operation. They also have a simple design, making them easy to manufacture and maintain. Additionally, these motors can be easily controlled using variable speed drives.

4. How do I choose the right 12v PMDC brush motor for my needs?

When selecting a 12v PMDC brush motor, you should consider factors such as torque requirements, speed range, and size limitations. You should also ensure that the motor is capable of handling the required load and has the appropriate voltage and current ratings for your application.

5. What are some common uses for 12v PMDC brush motors?

12v PMDC brush motors can be found in a wide range of devices and systems, including electric vehicles, robots, medical equipment, and household appliances. They are also commonly used in industrial machinery and automation systems due to their reliability and ability to provide precise control over speed and torque.

Similar threads

3D Printer Stepper Motor Torque Requirements Using Gear Reduction
    • Mechanical Engineering
Replies
1
Views
1K
Questions about DC motor drive calculations
    • DIY Projects
Replies
3
Views
2K
Help with Picking a DC motor for Electric Handcart
    • Mechanical Engineering
Replies
16
Views
2K
Robotics DC Motor Help: Testing Motors for Project
    • Mechanical Engineering
Replies
1
Views
1K
Flow rate needed to lift object inside a vertical pipe
    • Mechanical Engineering
Replies
4
Views
825
Need motor help with Electric Power Brush project for clearing snow
    • Electrical Engineering
Replies
11
Views
3K
Optimum Wheel Radius for a Terrestrial Robot
    • Mechanical Engineering
Replies
23
Views
3K
AC Motor Suggestions for a new product
    • Mechanical Engineering
Replies
7
Views
2K
In need of VFD/Inverter to motor assistance please
    • Electrical Engineering
Replies
15
Views
3K
How do I select the right motor and gear ratio for a mid-drive e-Bike?
    • General Engineering
Replies
2
Views
3K

Hot Threads

Recent Insights

Back
Top