---
product_id: 399478978
title: "CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft"
brand: "cnctopbaos"
price: "726 kr"
currency: DKK
in_stock: true
reviews_count: 8
category: "Cnctopbaos"
url: https://www.desertcart.dk/products/399478978-cnctopbaos-nmrv030-worm-gear-reducer-speed-ratio-10-1-aluminum
store_origin: DK
region: Denmark
---

# 11mm input & 14mm output shafts 10:1 precision speed ratio durable aluminum alloy casing CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft

**Brand:** cnctopbaos
**Price:** 726 kr
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your motion control game with precision and power!

## Quick Answers

- **What is this?** CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft by cnctopbaos
- **How much does it cost?** 726 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/399478978-cnctopbaos-nmrv030-worm-gear-reducer-speed-ratio-10-1-aluminum)

## Best For

- cnctopbaos enthusiasts

## Why This Product

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

## Key Features

- • **Whisper-Quiet Operation:** Engineered for smooth, low-noise transmission to keep your workspace distraction-free.
- • **Robust Aluminum Alloy Build:** Lightweight yet tough housing ensures superior thermal management and longevity.
- • **Precision 10:1 Gear Reduction:** Optimize torque and control with exact speed scaling.
- • **Seamless Nema23 Compatibility:** Perfectly matched for your Nema23 stepper motors—plug and play efficiency.
- • **Versatile Multi-Faceted Installation:** Designed for flexible mounting options to fit diverse industrial setups.

## Overview

The CNCTOPBAOS NMRV030 Worm Gear Reducer offers a reliable 10:1 speed ratio with 11mm input and 14mm output shafts, tailored for Nema23 stepper motors. Crafted from high-quality aluminum alloy, it delivers smooth, low-noise performance and excellent thermal management, making it a durable and efficient choice for professional automation and industrial applications.

## Description

desertcart.com: CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft : Industrial & Scientific

Review: Works great! Heavy Duty and affordable for what it is. - This unit is super solid and is a great price for what you get. Gearbox comes fully lubricated and is factory sealed. so don't expect to open it easily (not that you'd need to). It's full of oil and you'd need to remove the rubber gasket without damaging it somehow. The biggest issue I had was finding the appropriate hardware for driving the input side of the gearbox. The main input has an odd inner diameter of 11mm (7/16") with a 4mm wide key and I underestimated how hard it would be to find appropriate components to drive this with a larger shaft. With that said, the manufacturer included coupler that adapts this down to an 8mm d-shaft and that fits standard sized servos traditionally used for this.
Review: Well made and reliable worm gear drive - I have been using this worm gear with a stepper motor for a couple of years. It is well made and has been working flawlessly since I bought it. If you need a gear reduction for a stepper motor, I can highly recommend this one.

## Features

- Model: NMRV030-10
- Speed Ratio: 10:1
- Input Bore Size: 11mm, 0.43" ; Output Bore Size:14mm, 0.55"
- Input Flange Model: Nema23 ; Application: Matched with Nema23 Stepper Motor
- Advantage: Smooth transmission, low noise; The multi-faceted installation;High-quality aluminum alloy enclosure, thermal performance, large carrying capacity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09HGH4S3F |
| Best Sellers Rank | #136,725 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Gearboxes, Gearheads & Speed Reducers |
| Brand | CNCTOPBAOS |
| Brand Name | CNCTOPBAOS |
| Customer Reviews | 4.4 out of 5 stars 34 Reviews |
| Manufacturer | CNCTOPBAOS |
| Material | Aluminum |
| Material Type | Aluminum |
| Model | 1 |
| Shaft Diameter | 14 Millimeters |

## Product Details

- **Brand:** CNCTOPBAOS
- **Material:** Aluminum
- **Shaft Diameter:** 14 Millimeters
- **Manufacturer:** CNCTOPBAOS

## Images

![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft - Image 1](https://m.media-amazon.com/images/I/613iQdWIYLL.jpg)
![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft - Image 2](https://m.media-amazon.com/images/I/710A98kdSQL.jpg)
![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft - Image 3](https://m.media-amazon.com/images/I/718Pw1DqBBL.jpg)
![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft - Image 4](https://m.media-amazon.com/images/I/71YsUD8vZtL.jpg)
![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft - Image 5](https://m.media-amazon.com/images/I/71k3EcetunL.jpg)

## Available Options

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

## Questions & Answers

**Q: Whats max power from the motor this gearbox can hold?**
A: The chart with specifications provides the power recommendations. Maximum is different depending on gear ratio

**Q: What is the backlash specification on this unit?**
A: Have used 5 of these. Can not detect any backlash. Gearboxes are very well made and different motor mountings are available. We use these on CNC drives with100 or so cycles daily and have not had any problems.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great! Heavy Duty and affordable for what it is.
*by P***T on December 1, 2025*

This unit is super solid and is a great price for what you get. Gearbox comes fully lubricated and is factory sealed. so don't expect to open it easily (not that you'd need to). It's full of oil and you'd need to remove the rubber gasket without damaging it somehow. The biggest issue I had was finding the appropriate hardware for driving the input side of the gearbox. The main input has an odd inner diameter of 11mm (7/16") with a 4mm wide key and I underestimated how hard it would be to find appropriate components to drive this with a larger shaft. With that said, the manufacturer included coupler that adapts this down to an 8mm d-shaft and that fits standard sized servos traditionally used for this.

### ⭐⭐⭐⭐⭐ Well made and reliable worm gear drive
*by L***E on August 19, 2025*

I have been using this worm gear with a stepper motor for a couple of years. It is well made and has been working flawlessly since I bought it. If you need a gear reduction for a stepper motor, I can highly recommend this one.

### ⭐⭐⭐⭐⭐ Good quality low price.
*by T***S on April 24, 2025*

This was a good quality gearbox and the price was very good. Being used in a prototype to determine life.

## Frequently Bought Together

- CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 10:1 Aluminum Alloy Square RV30 NMRV30 Worm Gearbox Speed Reducer for Nema23 Stepper Motor 11mm Input and 14mm Output Shaft
- CNCTOPBAOS Output Double Shaft Diameter 14mm 0.55" Dual Output Shaft Length 130mm Fit for Worm Reducer Gearbox NMRV030 RV030 Nema23 Stepper Motor with Gaskets S Ring Corner pin
- Shaft Sleeve 1/4Inch(6.35mm) Shaft Motor to 11mm Bore Adapter for RV030 Worm Gear Speed Reduce

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-07*