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MFA 4.5-15V Large 11:1 Single Ratio Motor Gearbox

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Quoting product code: WC70M


About this product


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 11:1
• Rotations per minute of up to 1800
• Creates torque up to 1000 gf.cm
• Compact size to even fit some medium sized projects

What size is this motor gearbox?

At 39 mm x 47 mm x 71 mm (96 mm including shaft) this large motor with an integrated gearbox is great for most mid-sized projects. Capable of producing up to 1800 rotations per minute (rpm) and torque up to 1000gf.cm (0.098Nm) at 12V this is a great all-round motor with a good rpm and torque suitable for a wide range of projects. The direction of rotation can be reversed by changing the input polarity. The motor 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 919D111
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)

What would be the minimum speed (in rpm) for this motor gearbox?

Asked by: Sanjay
The data sheets for the MFA motors showing the information you require can be found on the following link. http://www.mfacomodrills.com/motors/motors.html
Answered by: Billy
Date published: 2015-12-11
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