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MFA 4.5-15V Large 6:1 Single Ratio Motor Gearbox

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Quoting product code: N98BN


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About this product


  • Large motor with integral gearbox
  • Great for heavy duty industrial, hobby, modelling, R&D, and education use
  • Operating voltage between 4.5V and 15V

Product overview

• Large motor with integral gearbox
• Great for heavy duty industrial, hobby, modelling, R&D, and education use
• Operating voltage between 4.5V and 15V
• Output ratio of 6:1
• Rotations per minute of up to 3295
• Creates torque up to 741 gf.cm
• Compact size to even fit some medium sized projects

How many rotations per minute can this motor gearbox do?

This 6:1 motor gearbox can deliver up to 3295 rotations per minute (rpm) and torque up to 741gf.cm (gram-force cm) at 12V great for projects which require high rpm. The motor can spin in either direction dependant on the input polarity. At just 71mm (96mm including shaft) x 39mm x 47mm this motor gearbox can fit into most medium sized projects and with the integrated gearbox you can save on space. It comes with its own 1mm thick plated steel bracket mount

What can I use this motor gearbox for?

This is a powerful motor with an integral gearbox suitable for heavy-duty industrial or model applications. The motor is capable of high torque transfer through the gears. The built-in gearbox can increase your turning power (torque) at a reduced rotations per minute from the motor. The optimum ratio for this will depend on your project. Solidly constructed from steel and brass with sintered bronze bearings, a high quality three pole motor and a 5.98mm diameter central output shaft. This motor gearbox is ideal for DC 4.5-15V powered mechanisms with a wide range of application from industrial uses to modelling or hobbies or to demonstrate mechanical principles for educational kits.

Motor available separately
MFA MFA Medium 4.5-15V 12380 rpm Motor <HA89W>

(Motor speeds may vary by ±12.5%)


Manufacturer part code 919D61
Supply voltage DC 4.5 V - 15 V
Speed at Max efficiency 3295 rpm @ 15V
Speed at other voltages 2633 rpm @ 12 V
1975 rpm @ 9 V
1316 rpm @ 6 V
990 rpm @ 4.5 V
Current at max efficiency 2.75 A @ 12 V
Output power at max efficiency 19.35 W @ 12 V
Torque 741 g.cm (0.073 Nm) @ 12 V
Gearbox ratio 6:1
Shaft diameter 5.98 mm
Weight 234 g
Dimensions 39 mm x 47 mm x 71 mm (96 mm including shaft)

If I operate the motor at 6V instead of 12V, how would the current and power change in relation to the values stated on the product description?

Asked by: Kyle
This service is for frequently asked questions and does not allow two way communication, In order for us to best assist you with your technical issue please contact us on the details below: 0333 400 9500 or email technical@maplin.co.uk
Answered by: Dominic
Date published: 2016-11-10

are the motors you stock low noise looking for low noisetype

Asked by: cherub
On this occasion Maplin do not stock a product that exactly meets your requirements, or indeed anything close enough to offer you as an alternative.
Answered by: Les
Date published: 2016-10-25
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