---
product_id: 735534669
title: "BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-locking Reverse Engine Mini Turbine Gear Motor for DIY Robot Rotary Table Door Lock Curtain Machine (12V 40rpm)"
brand: "bringsmart"
price: "¥14087"
currency: JPY
in_stock: true
reviews_count: 5
category: "Bringsmart"
url: https://www.desertcart.jp/products/735534669-bringsmart-12v-40rpm-dc-worm-gear-motor-40kg-cm-self
store_origin: JP
region: Japan
---

# 12V rated voltage 40 kg.cm rated torque 40 RPM no-load speed BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-locking Reverse Engine Mini Turbine Gear Motor for DIY Robot Rotary Table Door Lock Curtain Machine (12V 40rpm)

**Brand:** bringsmart
**Price:** ¥14087
**Availability:** ✅ In Stock

## Summary

> ⚙️ Unlock precision power and DIY dominance with the BRINGSMART worm gear motor!

## Quick Answers

- **What is this?** BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-locking Reverse Engine Mini Turbine Gear Motor for DIY Robot Rotary Table Door Lock Curtain Machine (12V 40rpm) by bringsmart
- **How much does it cost?** ¥14087 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/735534669-bringsmart-12v-40rpm-dc-worm-gear-motor-40kg-cm-self)

## Best For

- bringsmart enthusiasts

## Why This Product

- Trusted bringsmart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Confidence:** Reliable 12V DC motor with 4.3-star rating and hassle-free returns for peace of mind.
- • **Wide Application Spectrum:** From smart curtains to robotic arms—engineered for professional-grade automation.
- • **Compact Turbo Worm Gearbox:** High reduction ratio (1:200) delivers smooth, powerful torque in a mini form factor.
- • **Precision Self-Locking Power:** Never worry about back-driving—motor locks instantly when off for ultimate control.
- • **Versatile Directional Control:** Easily reverse rotation by switching wiring, perfect for dynamic DIY projects.

## Overview

The BRINGSMART 12V 40rpm DC Worm Gear Motor features a robust 40 kg.cm torque and a 1:200 reduction ratio for high-precision, self-locking performance. Its reversible wiring and compact design make it ideal for professional DIY robotics, smart home automation, and industrial applications requiring reliable, silent, and secure motor control.

## Description

Description: This type is a miniature worm gear DC motor, which can change the direction of the shaft rotation while changing the direction of the direction. It also has two features. 1. Self-locking mechanism can not rotate the output shaft when switched off. This means they are self-locking. 2. The gearbox output shaft and motor shaft are rectangular and widely used in various occasions where special mounting size is required. Can be applied to robots, display cabinets, electric doors, electric curtains, electric racks, barbecue machines, barbecue pits, electric toys, hands-on DIY etc. If you need other voltage and rpm, please contact us. There are many other models of this motor. What does it mean to be a motor turtleneck? The standard torque of the motor is 22.0 lbs (10 kg). When using the belt wheel for transmission, the radius of the belt wheel is 1cm, the output tension of the belt is 10kg. If the belt radius is 0.8 inches (2 cm), the output tension of the belt is 11.0 lbs (5 kg).

Review: I’ve seen others who have been interested in motorizing their Coolaroo Roller Shades. Well, I wanted that to so I figured out a ‘fairly’ easy way to do it. I’ve included a picture of the configuration and a video of the movement. The parts are: 12v 80rpm Reversing Motor
Review: Great buy

## Features

- Rated voltage - 12V DC, no load speed - 40rpm, no load current - 350mA, rated speed - 30rpm, rated torque-40kg.cm, rated current - 1.6A, reducer ratio - 1:200
- Features: Output Shaft Diameter: 8mm; Motor is Gear DC motor with micro turbine worm, you can change the wiring connection to change the motor rotation. - For a turbo worm gear motor with self-locking, i.e. a motor without electric, the output axis is is fixed and self-locked. - Reducer output shaft is positioned vertically with the motor shaft and overall motor output
- Applications: Appliances such as banking equipment, safe boxes, paper feeders, intelligent gas meters, tissue machines, automotive accessories, advertising equipment, analyzing equipment, electronic game consoles, remote control curtains, locks, paper shredders, copiers, safes and more
- What You Get: 1 x DC geared motor; if you need other voltage and revolution, please contact us
- [Insurance] We promise 100% unconditional return service if you have any quality problems. If you need other voltage and rpm, please feel free to contact us! If you have any questions about the motor, please contact us. We will try our best to reply you as soon as possible

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F8TGB9L |
| Batteries Included | No |
| Batteries Required? | No |
| Customer Reviews | 4.3 4.3 out of 5 stars (681) |
| Date First Available | August 3, 2020 |
| Included Components | JSMG028A12V40 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 372 g |
| Manufacturer | Hugwit Company |
| Material | Paper |
| Package Dimensions | 13.21 x 8.51 x 7.59 cm; 372 g |
| Part number | A58SW31ZY |
| Size | 12V 40rpm |
| Speed | 40 RPM |
| Voltage | 12 Volts |

## Product Details

- **Brand:** BRINGSMART
- **Item Weight:** 0.37 Kilograms
- **Material:** Paper
- **Speed:** 40 RPM
- **Voltage:** 12 Volts

## Images

![BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-locking Reverse Engine Mini Turbine Gear Motor for DIY Robot Rotary Table Door Lock Curtain Machine (12V 40rpm) - Image 1](https://m.media-amazon.com/images/I/41+S2JDXzQL.jpg)
![BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-locking Reverse Engine Mini Turbine Gear Motor for DIY Robot Rotary Table Door Lock Curtain Machine (12V 40rpm) - Image 2](https://m.media-amazon.com/images/I/410o3KIPpdL.jpg)
![BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-locking Reverse Engine Mini Turbine Gear Motor for DIY Robot Rotary Table Door Lock Curtain Machine (12V 40rpm) - Image 3](https://m.media-amazon.com/images/I/41MsGX8VtIL.jpg)
![BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-locking Reverse Engine Mini Turbine Gear Motor for DIY Robot Rotary Table Door Lock Curtain Machine (12V 40rpm) - Image 4](https://m.media-amazon.com/images/I/41jC1C2DCML.jpg)
![BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-locking Reverse Engine Mini Turbine Gear Motor for DIY Robot Rotary Table Door Lock Curtain Machine (12V 40rpm) - Image 5](https://m.media-amazon.com/images/I/51HSxVoT3DL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Will it work with ac adapter 12v 3.0 a?**
A: This is a DC motor. So the input voltage must be DC voltage. AC volatge can not work. This motor needs DC 12V volatge to work normally.

**Q: Is this motor strong enough for an electric wheelchair?**
A: strong enough yes but i don't think it would last very long. plus it is very slow, 12 revolutions per minute . i would want my wheelchair to be a lot faster than that.

**Q: Will these work for combat robot**
A: I'm not sure. It has lots of torque. At 16rpm, I'm not sure if it is fast enough for the combat you have in mind. Also, I have not used it enough to determine how reliable or durable it is. The same manufacturer has 32rpm and higher versions. I would buy one of each and test them. I'm pleased with it so far. I've purchased 4 of them.

**Q: el motor reductor de 12 volt y 80 rpm, cual es el torque real?**
A: The torque of 12V 80rpm is about 15kg.cm. Torque means that when the radius of the contact area between the motor shaft and the load is 1cm, the maximum weight that the motor can load is 15kg. When the radius of the contact area is 2cm, the maximum weight that the motor can load is 7.5kg. And so on.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***D on January 3, 2025*

I’ve seen others who have been interested in motorizing their Coolaroo Roller Shades. Well, I wanted that to so I figured out a ‘fairly’ easy way to do it. I’ve included a picture of the configuration and a video of the movement. The parts are: 12v 80rpm Reversing Motor

### ⭐⭐⭐⭐⭐ Review
*by J***5 on November 26, 2021*

Great buy

### ⭐⭐⭐⭐⭐ Review
*by C***G on July 22, 2025*

Good product does the job

## Frequently Bought Together

- BRINGSMART 12V 40rpm DC Worm Gear Motor 40kg.cm Self-Locking Reversed Engine Mini Turbine Geared Motor for DIY Robot Rotating Table Door Lock Curtain Machine (12V 40rpm)
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-16*