Previous in Forum: How to Measure and Control the Temperature   Next in Forum: Resistor Value
Close
Close
Close
6 comments
Rate Comments: Nested
Active Contributor

Join Date: Apr 2011
Posts: 21

I Want 20 RPM Speed

03/05/2012 8:26 AM

i want 20rpm speed with the motor then please tell me the specification of the motor

Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru
United Kingdom - Member - Not a New Member Hobbies - Musician - New Member Hobbies - Fishing - New Member

Join Date: May 2006
Location: Reading, Berkshire, UK. Going under cover.
Posts: 9684
Good Answers: 468
#1

Re: i want 20rpm speed

03/05/2012 8:35 AM

300 poles for 50Hz operation. 360 poles for 60Hz.

You're welcome.

__________________
"Love justice, you who rule the world" - Dante Alighieri
Register to Reply
Guru
United Kingdom - Member - Not a New Member Hobbies - Musician - New Member Hobbies - Fishing - New Member

Join Date: May 2006
Location: Reading, Berkshire, UK. Going under cover.
Posts: 9684
Good Answers: 468
#2

Re: i want 20rpm speed

03/05/2012 8:38 AM

On a more serious note, you haven't given anywhere near enough information to be able to specify a motor.

Hint: you'll almost certainly need a gearmotor.

__________________
"Love justice, you who rule the world" - Dante Alighieri
Register to Reply
Guru

Join Date: Jul 2007
Location: Commissariat de Police, Nouvions, occupied France, 1942.
Posts: 2599
Good Answers: 77
#3

Re: I Want 20 RPM Speed

03/05/2012 9:50 AM

You could use the drive from the minute hand from a battery clock, sped up through a 20:1 gearbox.

Or, you could drive the shaft from the second hand with a 3:1 step down gearbox.

Actually, the possibilities are endless given such a loose specification, Guv, as #2↑ implies.

__________________
Good moaning!
Register to Reply
Guru
United States - Member - New Member

Join Date: Jun 2008
Location: Alabama
Posts: 1604
Good Answers: 63
#4

Re: I Want 20 RPM Speed

03/05/2012 1:44 PM
Register to Reply
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#5

Re: I Want 20 RPM Speed

03/05/2012 1:47 PM

Contact one of the thousands of motor suppliers at Search GlobalSpec.

They will be thrilled to help you.

Register to Reply
Associate

Join Date: May 2012
Posts: 52
#6

Re: I Want 20 RPM Speed

05/15/2012 7:38 AM

hello nhadkine, if you want your motor run in 20 rpm you need to get VFD variable freqency control and here is the website, http://www.vfdmotor.us/motorspeedcontrol.html im sure this will help you to slow down your motor !!!

__________________
i want ot helf piple need assistance and to share my knowleged in technical
Register to Reply
Register to Reply 6 comments
Copy to Clipboard

Users who posted comments:

Crabtree (1); JohnDG (2); lyn (1); toink (1); wareagle (1)

Previous in Forum: How to Measure and Control the Temperature   Next in Forum: Resistor Value

Advertisement