Gearbox/Motor Configuration Q&A - Get Answers Now!

  • Thread starter Ronnin
  • Start date
In summary: I would recommend checking out Emerson or another company that specializes in gearboxes before investing in a Baldor.In summary, Ronnin thinks the customer may need a custom gear box for his application.
  • #1
Ronnin
168
1
I feel like a fool having to ask this question here but I'm trying to learn this without calling engineering everytime I have a PT question. Is anyone here familiar with gearbox/motor configuration? I was going to use Emerson's boxes since I'm a distributor for them. Anyone here familar with them or anyone elses for that matter?
 
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  • #2
Hi Ronnin. I'm not very familiar with the Emerson line, though I've used similar equipment in the past. What's your question?
 
  • #3
Here is what I'm trying to do. Customer is requesting a 1HP 3phase 220 Motor. Connecting to a GB with a C56 flange (Is that normal?). 40:1 Ratio, Right Hand output. I don't know how many input RPM (Is there a standard for that HP?) Service factor (I don't know what would be normal for that). Do I have enough info from the customer? I know this is a new design for him but unfortunatly I'm not of much help. I really want to try to understand the right questions to ask because I want to be able to configure solutions without having to call the customer back after I had to call engineering.
 
  • #4
A 1 hp, 3 phase, 220 volt motor is typically 1750 RPM, and he's saying it has a NEMA C-face connection and the frame size of the motor is 56. A C-face connection is where the motor bolts up to something on the face that has the shaft protruding as shown here:
http://www.bearingsdirect.com/emotor/images/rigid_cface.htm [Broken]

The 40:1 ratio I'm assuming reduces the RPM from 1750 on the input to 1750/40 on the output.

Service factor is essentially a type of safety factor, but the gear box is rated in torque, not power, so you may need to determine the input torque, x (from the electric motor), and then explain that the torque capacity of the model you're offering is X which gives a X/x 'service factor' over the point at which he's operating.

Take a look at the Emerson page here:
http://www.emerson-ept.com/eptroot/public/prod/brghelc/TorqTaperPlusCFace.asp [Broken]
and see if one of these models would work. It looks like they only go to 35:1 so this customer may want a custom unit.

I think he's given you enough info for you to offer some potential solutions. There may be more than one gear box that can meet those criteria, cost and other factors being the differentiators.
 
Last edited by a moderator:
  • #5
Thanks for the info. I will pull some potentials from the book and try to pin the customer down. Thanks again for your input.
 
  • #6
If I may...in situations like these, a good sales rep for a distributor can really be a godsend. You sound like you have the major required details. If you were to present that to a sales rep, they should be able to give you options and possibly give you things to think about that neither you or your customer thought about.

If it's worth your while to think about other options, I use Baldor motors and drives quite a bit. I havenever had problems with them. Just another place you can look. Good luck.
 
  • #7
I've had some bad experiences with high horsepower Baldor motors. They had some shaft sparking issues under shock loads.
 

1. What is the difference between a gearbox and a motor?

A gearbox is a mechanical device that is used to increase or decrease the speed or torque of a motor. A motor, on the other hand, is an electrical device that converts electrical energy into mechanical energy to power a machine or device.

2. How do I choose the correct gearbox and motor for my application?

Choosing the correct gearbox and motor involves considering factors such as the required speed, torque, power, and efficiency for your specific application. It is best to consult with a professional or refer to manufacturer specifications for guidance.

3. Can I use any gearbox with any motor?

No, not all gearboxes are compatible with all motors. It is important to ensure that the gearbox and motor have compatible shaft sizes and mounting configurations. Additionally, the operating speed and torque requirements should also be taken into consideration.

4. What is the importance of proper gearbox and motor configuration?

Proper gearbox and motor configuration is crucial for optimal performance and efficiency of a machine or device. Using the wrong configuration can lead to issues such as excessive wear and tear, decreased lifespan, and reduced productivity.

5. How can I maintain my gearbox and motor to prolong their lifespan?

Regular maintenance is key to prolonging the lifespan of your gearbox and motor. This includes checking for wear and tear, lubricating components, and addressing any issues promptly. It is also important to use the correct configuration and to operate within the recommended speed and torque limits.

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