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Ruth's sister

Ruth's sister International Power Cord 270B13AC800920 3-9V 185 RPM 9.5mm Shaft 15-22cm Wire

SKU CH-49FY-2916X

Miniature metal gear motor delivers 185 RPM at 3 V with bidirectional rotation and a 9.5 mm D-type shaft

  • Low-speed torque for precise mechanisms
  • 3–9 V operation with 185 RPM at 3 V
  • Clockwise and counter-clockwise rotation selectable
  • Compact 1.2 × 0.9 × 1 cm metal gearbox
  • 5 mm D-shaft with 15–22 cm leads

Mini Micro Metal Gear Motor

The Ruth's sister 270B13AC800920 is a miniature DC motor with integrated metal gear reduction. It operates on a 3-9V supply and delivers 185 RPM at 3V. The 9.5mm D-type shaft and 15-22cm wire leads suit compact mechanical projects.

Hobbyists building small actuators

This motor suits builders who need a ready-to-go geared drive for lightweight mechanisms such as camera gimbals or valve actuators. Buyers who require higher torque, faster speed, position feedback or a different shaft diameter should look elsewhere.

3-9V range with 185 RPM at 3V

The gearbox provides usable torque for small loads at low voltage, making it comfortable for battery-powered prototypes. It runs out of headroom when the load exceeds the gearbox rating or when continuous operation demands more current than the 3V brushed windings can supply.

How it compares

Measured against everything we stock in Worldwide Power Cords, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 80% of the 1,208 comparable items (median $9.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What voltage source do I need to run this 3-9 V motor at its rated 185 RPM?

Supply any DC voltage between 3 V and 9 V; the motor is specified to turn at 185 revolutions per minute at 3 V.

Will the 3 mm D-shaft fit the gear or wheel I already have?

The output shaft is 3 mm diameter with a D-shaped flat and 9.5 mm long, so it matches standard N20 pinions and wheels bored for that size.

How can I confirm the motor is rotating in the direction I wired it for?

Apply power and watch the shaft — it turns clockwise or counter-clockwise depending on polarity, giving immediate visual confirmation.

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