Unclear properties of DC motor

In summary, the conversation discusses the need for a dc motor with specific torque and rpm requirements for a project. A potential motor is identified, but there is confusion about the stated torque and rpm and whether it is the applicable output or input to the gearbox. The speaker notes that quoted numbers for devices are usually the maximum rated numbers.
  • #1
mechapeno
1
0
Hello everyone

For a project I'm currently working on, I need a dc motor which can generate a torque of about 0.1-0.2 Nm (or more) with a rpm of about 120-200.

http://uk.farnell.com/crouzet/82861015/motor-geared-24vdc-430rpm/dp/3115616?Ntt=CROUZET+-+82861015.+-+MOTOR%2C+GEARED%2C+24VDC%2C+430RPM

The geared motor of the above link, (data sheet: http://www.farnell.com/datasheets/30394.pdf) looks promising at first sight, but when you browse some more on farnell.com, you encounter a lot of these 'Crouzet' motors which are priced equally, have the same torque, but different rotational speed.

So, I was wondering: is this 0.5Nm torque the torque the motor delivers as input to the gearbox (so the output torque - after the gearbox has done it's job - is higher/lower) or is this really the applicable torque and rpm for the motor?

Thanks in advance!
 
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  • #2
When people quote numbers for devices like that, they almost always are the "rated" numbers. Rated usually, but not necessarily means maximum.
 

Related to Unclear properties of DC motor

1. What is the main difference between AC and DC motors?

The main difference between AC and DC motors is the type of current they use. AC motors use alternating current, which changes direction periodically, while DC motors use direct current that flows in one direction only.

2. What are the unclear properties of DC motors?

The unclear properties of DC motors refer to the characteristics or parameters of the motor that are not clearly defined or understood. These may include factors such as efficiency, torque, power output, and speed regulation.

3. How does the construction of a DC motor affect its performance?

The construction of a DC motor, including the type of materials used, the number of windings in the armature, and the placement of the magnets, can greatly impact the motor's performance. A well-designed motor will have optimal efficiency and power output.

4. What is the role of commutator in a DC motor?

The commutator is an essential component of a DC motor. It is responsible for reversing the direction of current flow in the armature, which creates the rotational movement necessary for the motor to function.

5. How can the unclear properties of DC motors be addressed?

To address the unclear properties of DC motors, further research and experimentation may be necessary. Scientists can also use advanced techniques such as computer simulations and mathematical modeling to better understand and define the properties of DC motors.

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