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DC ELectric Motor RS550 9 Teeth 12 Teeth 10.8V 12V 14.4V 16.8V 18V 21V 25V Screwdriver Drill Motor with High Torque Gear Box

DC ELectric Motor RS550 9 Teeth 12 Teeth 10.8V 12V 14.4V 16.8V 18V 21V 25V Screwdriver Drill Motor with High Torque Gear Box

Price range: $3.64 through $6.58

Wholesale pricing up to 10% off

Minimum order quantity: 100 pcs

An RS550 brushed DC motor with a high-torque reduction gearbox, sized as a replacement drive for cordless screwdrivers and drills.

Product overview

Product type
Configurable product with multiple options
Minimum order
100 pcs
Volume pricing
200+ pcs: 10% off
Options
Model: 25V 9 Teeth, 25V 12 Teeth, 18V 9 Teeth, 18V 12 Teeth, 12V 9 Teeth, 12V 12 Teeth
Customization
OEM/ODM, custom length, connector, colour and packing
Payment
T/T bank transfer; card payments where available
Shipping
DHL, FedEx, UPS or freight forwarder from China
Duties & import taxes are prepaid at checkout — no extra charges on delivery.
SKU: N/A Category: Brand:

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Description

Overview

An RS550 brushed DC motor with a high-torque reduction gearbox, sized as a replacement drive for cordless screwdrivers and drills. Choose a 9-tooth or 12-tooth gear across voltage ratings from 10.8V to 25V.

Specifications

  • Frame: RS550, brushed DC
  • Output gear: 9 teeth or 12 teeth
  • Voltages: 10.8V, 12V, 14.4V, 16.8V, 18V, 21V, 25V
  • Gearbox: high-torque reduction
  • Fits: cordless screwdrivers, drills

Purpose

Worn brushes or a stripped pinion retire a cordless tool long before its battery does. This assembly restores the drive at the original voltage and tooth count, so the gear train still meshes.

Applications

  • 12V and 18V drill driver repair
  • Electric screwdriver rebuilds
  • 14.4V and 16.8V tool platforms
  • Hobby robotics drives
  • 21V and 25V mechanisms

How to Use

  1. Count teeth and read the old motor’s voltage label before ordering; 9 and 12-tooth gears do not interchange.
  2. Note polarity and lead routing, then desolder the old leads.
  3. Seat the motor in the gearbox and check the pinion meshes without binding.
  4. Resolder with the original polarity, then test at no load before full service.
  5. Never exceed the rated voltage — a 12V winding on an 18V pack overheats.

Need help specifying this connector?

Use our practical guides for current and wire selection, connector validation and OEM harness drawings.

Browse the connector selection hub

Additional information

Weight N/A
Dimensions N/A
Model

25V 9 Teeth, 25V 12 Teeth, 18V 9 Teeth, 18V 12 Teeth, 12V 9 Teeth, 12V 12 Teeth, 10.8V 9 Teeth, 10.8V 12 Teeth, 21V 9 Teeth, 21V 12 Teeth, 16.8V 9 Teeth, 16.8V 12 Teeth, 14.4V 9 Teeth, 14.4V 12 Teeth

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Buying FAQ

What is the minimum order quantity?

The minimum order quantity is 100 pcs.

How does tiered pricing work?

The unit price is adjusted automatically by quantity: from 200 pcs: 10% off. The final price is confirmed in the quotation.

Can you customize this product?

Yes. We support OEM/ODM, custom wire length, connector type, colour, packing and cable assemblies. Send a drawing, sample or photo for evaluation.

How do I request a quotation?

Use the quote form on this page, WhatsApp +86 15521787718, WeChat yieying_01 or email 298273997@qq.com. We reply within one business day.

What payment methods do you accept?

We accept T/T bank transfer. Card or local payment methods may be available through our payment partner, subject to the destination and order value.

What is the lead time?

Lead time is confirmed in the quotation. For custom or OEM orders, we normally approve a sample before bulk production.

Need help with returns, warranty or spare parts? Read our After-Sales Service

Request a Quote

Fill in the form below and we will reply within 1 business day. You can also reach us on WhatsApp: +86 15521787718

Prices are shown in USD, converted from CNY at 1 CNY = 0.1496 USD (rate updated 2026-11-15 07:56)