8520 Hollow Cup DC Motor 3.7V 48000RPM 1.2mm Shaft
Part number: 8520DC & Gear Motors
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Prices updated: 14 Oct 2026
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About this product
A small 8mm x 20mm hollow cup motor with a 1.2mm output shaft, rated at 3.7V and 0.3A with a listed speed of 48000 RPM. It weighs about 5.1g and runs in both directions, with long leads for easy wiring. It suits small models and compact mechanical projects.
Specifications
- Diameter
- 8mm
- Length
- 20mm
- Shaft diameter
- 1.2mm
- Rated voltage
- 3.7V
- Current
- 0.3A
- Speed
- 48000 RPM
- Weight
- 5.1g
- Direction
- Forward and reverse
Frequently asked questions
Can it run from a single Li-ion or LiPo cell?
Its 3.7V rating matches the nominal voltage of a single Li-ion or LiPo cell. Use a driver such as a MOSFET or motor driver rated for at least 0.3A.
How do I reverse the rotation?
Reversing the polarity reverses the rotation. For control from a microcontroller, use an H-bridge driver so direction can be switched in software.
