---
product_id: 431781573
title: "CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square NMRV30 Output 14mm Shaft for Nema23 Stepper Motor"
brand: "cnctopbaos"
price: "A$127"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/431781573-cnctopbaos-nmrv030-worm-gear-reducer-speed-ratio-40-1-rv30
store_origin: AU
region: Australia
---

# 14mm output shaft diameter 40:1 precision speed ratio Nema23 compatible input flange CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square NMRV30 Output 14mm Shaft for Nema23 Stepper Motor

**Brand:** cnctopbaos
**Price:** A$127
**Availability:** ✅ In Stock

## Summary

> ⚙️ Unlock precision and power with every turn!

## Quick Answers

- **What is this?** CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square NMRV30 Output 14mm Shaft for Nema23 Stepper Motor by cnctopbaos
- **How much does it cost?** A$127 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/431781573-cnctopbaos-nmrv030-worm-gear-reducer-speed-ratio-40-1-rv30)

## 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

- • **Durable Design:** Crafted from premium aluminum alloy for superior thermal management and long-lasting performance.
- • **Quiet Efficiency:** Engineered for low noise operation, keeping your workspace calm and professional.
- • **Robust Compatibility:** Seamlessly pairs with Nema23 stepper motors for versatile industrial applications.
- • **Flexible Installation:** Multi-faceted mounting options to fit your custom setups effortlessly.
- • **Precision Power Boost:** Experience ultra-smooth transmission with a high 40:1 speed ratio for exacting control.

## Overview

The CNCTOPBAOS NMRV030 Worm Gear Reducer offers a high 40:1 speed ratio with a 14mm output shaft, designed specifically for Nema23 stepper motors. Its durable aluminum alloy housing ensures excellent thermal performance and high load capacity, while delivering smooth, low-noise operation and versatile installation options.

## Description

Full description not available

## Features

- Model:NMRV030-40
- Speed Ratio:40:1
- Input Bore Size:11 mm, 0.43 inch ; Output Bore Size:14 mm, 0.55 inch
- Input Flange Model:Nema23 ; Application:Matched with Nema23 Stepper Motor
- Smooth transmission, low noise; The multi-faceted installation;High-quality aluminum alloy enclosure, thermal performance, large carrying capacity

## Product Details

- **Brand:** CNCTOPBAOS
- **Horsepower:** 40 Watts
- **Material:** Aluminum
- **Item Weight:** 1.27 Kilograms
- **Shaft Diameter:** 14 Millimeters

## Images

![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square NMRV30 Output 14mm Shaft for Nema23 Stepper Motor - Image 1](https://m.media-amazon.com/images/I/71vCcnteVAL.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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Drill Driven Mechanical Clothesline
*by R***Y on September 16, 2025*

It's going to fit my application nicely. I've already made the drive shaft with a hex drive to be powered by a battery operated reversible hammer drill.Heavy duty clothesline pulley kit with cable.Worm-gear reducer driving bicycle gears and chain.She can hang laundry from the deck and drive it out & return it with the drill, not having to travel the steps or uneven yard and risk falling.

## Frequently Bought Together

- CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square NMRV30 Output 14mm Shaft for Nema23 Servo Motor, Nema24 Stepper Motor
- CNCTOPBAOS Output Single Shaft Diameter 14mm 0.55" Output Shaft fit for Worm Reducer Gearbox NMRV030 RV030 Nema23 Stepper Motor Length 100mm with Gaskets S Ring Corner pin
- Shaft Sleeve 8mm Shaft Motor to 11mm Bore Adapter for RV030 Worm Gear Speed Reduce

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**Shop now:** [https://www.desertcart.com.au/products/431781573-cnctopbaos-nmrv030-worm-gear-reducer-speed-ratio-40-1-rv30](https://www.desertcart.com.au/products/431781573-cnctopbaos-nmrv030-worm-gear-reducer-speed-ratio-40-1-rv30)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-24*