Electric Motor Speed - CR4 Discussion Thread

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toink Associate Join Date: May 2012 Posts: 52	Electric Motor Speed 05/20/2012 4:54 AM
	hello guys i have electrict motor 1/2 hp 1500rpm and ill like this to reduce the rpm @ 200rpm!! that question?? what size or diameter of pulley that can be use from electric motor to a conveyor, the conveyor have 3inch dia pulley ! __________________ i want ot helf piple need assistance and to share my knowleged in technical
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SolarEagle Guru Join Date: Mar 2007 Location: by the beach in Florida Posts: 33392 Good Answers: 1817	#1 Re: electric motor speed 05/20/2012 5:48 AM
	1500/200=7.5 3/7.5=0.4 You have to go to a larger pulley on the conveyor, or get a slower motor...or go to a multiple pulley system...or a gear reduction transmission... http://www.jealco.com/Content/VendorMaterial/Mot_Red/Grove/Grove.asp http://www.ebay.com/itm/Reliance-Dodge-Gear-Reduction-FC56WG12F8-7-5-1-New-z058-/220744796051#ht_500wt_976 __________________ All living things seek to control their own destiny....this is the purpose of life
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bravo88 Guru Join Date: Dec 2010 Location: 1° North Singapore Posts: 568 Good Answers: 17	#2 Re: electric motor speed 05/20/2012 8:24 AM
	Speed is directly proportional to diameter. __________________ Sharing knowledge is one thing that defies basic arithmetic logic --- the more you share, the more you get!
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#3 Re: electric motor speed 05/20/2012 9:47 AM
	Just use a .4 inch drive pulley.
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wareagle Guru Join Date: Jun 2008 Location: Alabama Posts: 1604 Good Answers: 63	#4 Re: Electric Motor Speed 05/20/2012 2:23 PM
	rpm1/rpm1 = d2/d1 assume d1 = 1 1500/1300 = d2/1 d2 = 1500/1300 = 1.15. You may have to use an adjustable pulley to get it just right. Or you can go here and use the calculator http://www.culvermotor.com/Engineering-Formulas/Pulley-and-RPM-Calculator.html
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#5 In reply to #4 Re: Electric Motor Speed 05/20/2012 11:28 PM
	Misprint: It should be rpm₁/rpm₂ = d₂/d₁. The OP can clarify whether "@" = "by" or "to", which would be 1300 or 200 output rpm, respectively. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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devitg Power-User Join Date: May 2009 Location: CORDOBA ARGENTINA Posts: 157 Good Answers: 4	#6 Re: Electric Motor Speed 05/21/2012 11:18 PM
	A minimun motor pulley , for a "A" v belt profile , could be about 2 inch , so your conveyor pulley shall be 2 x 7.5 , or 15 inch diameter __________________ devitg
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Users who posted comments:

bravo88 (1); devitg (1); lyn (1); SolarEagle (1); Tornado (1); wareagle (1)

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