Comments on this DC motor

Bestfreak · 26th April 2011, 11:07 AM

Hi

Please comment on this type Johnson DC motor as a replacement for TT motor

Johnson dc motor, sinter brons Glidebeering, Nice lineair run
DC regulating motor, Big contact bruches, start running @:ca 1,5volt Nominal:12 volt,
RPM @ 12 volt 18000/min,
Size 60x37mm,
Axel Diam:3,2 mm.
Long length:13mm,
Condition new.

doitmyself · 11th May 2011, 05:48 PM

I think the nominal speed at 12 V is too high. You'll need a very good DC power supply, with a good adjustment system. An Lp turns at 33 rpm, turn ratio: 18000/33.333=540. The speed depends on the voltage value. Imagine the voltage coefficient per plate rpm!!!!!!!!

26th April 2011, 11:07 AM	#1
Bestfreak diyAudio Member Join Date: Apr 2011 Location: Very eastern side of The Netherlands	Comments on this DC motor Hi Please comment on this type Johnson DC motor as a replacement for TT motor Johnson dc motor, sinter brons Glidebeering, Nice lineair run DC regulating motor, Big contact bruches, start running @:ca 1,5volt Nominal:12 volt, RPM @ 12 volt 18000/min, Size 60x37mm, Axel Diam:3,2 mm. Long length:13mm, Condition new.

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11th May 2011, 05:48 PM	#2
doitmyself diyAudio Member Join Date: May 2011 Location: Saint-Etienne	I think the nominal speed at 12 V is too high. You'll need a very good DC power supply, with a good adjustment system. An Lp turns at 33 rpm, turn ratio: 18000/33.333=540. The speed depends on the voltage value. Imagine the voltage coefficient per plate rpm!!!!!!!!

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