Manuals & Resources

Mabuchi Motor RS-555PH 12V DC Motor (9-20V) 57mm x 36mm

Brand:|Model: RS-555PH
This robust DC motor from Mabuchi is perfect for any number of electronic projects, including modelling, R/C, and robotics.
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List Price$9.99
Regular Price$7.00
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Buy 4-9 $2.90
Buy 10+$2.29
Part # 259-210
  • Low torque ripple for accurate and consistent speed
  • High speed – 5560 rpm with no load
  • Wrap-around shield reduces electrical interference

Product Details

Mabuchi Motor RS-555PH 12V DC Motor (9-20V) 57mm x 36mm

The RS-555PH from Mabuchi Motor is a stout DC motor useful as a common replacement for old style reel to reel tape decks by Akai and Teac. Originally offered as an OEM motor for ink jet printers and electric drills. Can also be used for many hobbyist projects such as radio controlled vehicles, robotics, model-building, home automation, and more! The 5-pole construction utilizes permanent magnets, so the motor produces high torque with high efficiency. Mounting is simplified by three 3 mm mounting holes on the face of the motor.

Specifications: • Speed (without load): 5560 rpm • Speed / Torque: 3950 rpm / 380.3 g–cm • Stall torque: 1360 g–cm • Current draw (at 5000 rpm): 1.25 A • Nominal voltage: 12 VDC • Direction - Clockwise • Operating voltage: 7 to 12 VDC • Weight: 36 g • Shaft diameter: 3.0 mm • Shaft length: 10.5 mm • Dimensions: 37.5 mm x 57 mm.

Mabuchi Motor RS-555PH 12V DC Motor (9-20V) 57mm x 36mm
  • BrandFactory Buyouts
  • ModelRS-555PH
  • Part Number259-210
  • UPC848864000428
  • Product CategoryMotors
  • Unit of MeasureEA
  • Product Rating
    (7 Reviews)
  • Weight0.45 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Mabuchi Motor RS-555PH 12V DC Motor (9-20V) 57mm x 36mm
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Mabuchi Motor RS-555PH 12V DC Motor (9-20V) 57mm x 36mm
Mabuchi Motor RS-555PH 12V DC Motor (9-20V) 57mm x 36mm is rated 5.0 out of 5 by 7.
Rated 5 out of 5 by from Decent MotorThis motor has a lot of torque and a decent back emf that works well in my constant speed circuit.
Date published: 2014-10-12
Rated 5 out of 5 by from Motor has excellent RPMs for scale model boatsI received this motor a couple of weeks ago. The low RPMs are perfect for scale model boats. I geared it 3 to 1 and put it in the tugboat. I'm running on 7.2 volts which delivers realistic scale speed. Thank you, Very satisfied.
Date published: 2014-08-15
Rated 5 out of 5 by from Very good price, and qualityExactly the motor I needed to build a custom water pump. Thanks!
Date published: 2014-05-31
Rated 5 out of 5 by from Great motorsI bought 10 of these for a robot arm I building. Tested them out and they worked great, just the ticket I was looking for.
Date published: 2014-05-21
Rated 5 out of 5 by from Works great.I bought this motor because it's part number matched the rusty & locked up trim motor on my 1994 Polaris SL 750 water craft. It was a perfect match and works great. You can't beat the price.
Date published: 2014-04-14
Rated 5 out of 5 by from Mabuchi motors are very good.I remember back in the late 80's playing with these motors and noticing their high quality and were VERY expensive.Can't go wrong with these. They were used in the high end R/C cars, trucks, etc toys and still are! Wonder why? :)
Date published: 2012-10-19
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Product Q&A

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Mabuchi Motor RS-555PH 12V DC Motor (9-20V) 57mm x 36mm

What is the shaft diameter? Is the motor direction reversible?

Asked by: Dagger
The shaft diameter is 3mm and yes this is reversible.
Answered by: MattP
Date published: 2015-07-09

Are the two opposite mounting holes 25mm center to center

Asked by: jackie4me
Yes they are 25mm center to center.
Answered by: MattP
Date published: 2015-04-14

Hey what are the total specs for this motor concerning the outer design and sizing? 

Asked by: ZeroGravidy
Being a buyout item we have very limited information for this motor. If you need specific dimensions or information, you can contact our tech support and we can pull a unit from stock for further details.
Answered by: MattP
Date published: 2014-09-15


Asked by: RICKster777
I do not know the difference in the two motors based upon the PH suffix, but suspect it may work. And if it doesn't, you haven't invested a lot!
Answered by: Eric Chandler
Date published: 2014-06-03

What is the armature inductance ?for theMabuchi Motor RS-555PH 12V DC Motor

Asked by: mahaya01
Unfortunately the manufacturer did not provide this information to us for this buyout item.
Answered by: MattP
Date published: 2014-04-10

What potentiometer should I use

I am looking for a potentiometor to reduce the 12vdc 3.5amp power to a variable 0-1.25 amp. Will a potentiometer do this?
Asked by: RobFredrickson
You "could" control a DC motor with a variable resistor (a potentiometer). While the latter approach works well, it generates heat and hence wastes power.That being said. 12VDC @ 3.5 amps is about 42 watts.The only pot I know of that can dissapte that much power is a high power "L pad". A 50 watt should do the trick, and Parts Express has them.....BUT....As the voltage is absorbed, the motor also looses power as it slows down so you might not end up with a very useful power curve...and L pads aren't ultra cheap.A better bet?A simple pulse width modulation DC motor control eliminates these problems. It controls the motor speed by driving the motor with short pulses ...of "full" power so the strength of the motor isn't affected. Only the speed. Nice!With this kind of circuit, the pulses vary in duration to change the speed of the motor. The longer the pulses, the faster the motor turns, and vice versa....and the parts a pretty cheap.You can find examples with circuit layouts pretty much everywhere. UTube has many good videos, and of course Parts Express has the parts too.Good luck!
Answered by: Gerry L.
Date published: 2014-04-10
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