---
product_id: 431660851
title: "CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030"
brand: "cnctopbaos"
price: "497 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Cnctopbaos"
url: https://www.desertcart.ro/products/431660851-cnctopbaos-nmrv30-worm-gearbox-speed-reducer-nmrv030-worm-gear-reducer
store_origin: RO
region: Romania
---

# Nema23 compatible input flange 20:1 precision speed ratio Durable aluminum alloy casing CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030

**Brand:** cnctopbaos
**Price:** 497 Lei
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030 by cnctopbaos
- **How much does it cost?** 497 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/431660851-cnctopbaos-nmrv30-worm-gearbox-speed-reducer-nmrv030-worm-gear-reducer)

## 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

- • **Seamless Nema23 Integration:** Effortlessly pairs with standard Nema23 stepper motors, ensuring plug-and-play compatibility.
- • **Robust Aluminum Alloy Housing:** Engineered for superior thermal management and heavy-duty performance under continuous operation.
- • **Precision 20:1 Speed Reduction:** Optimize torque and control with exacting speed ratio for professional-grade stepper motor setups.
- • **Whisper-Quiet, Smooth Transmission:** Experience low noise and vibration for a refined, professional workspace environment.
- • **Versatile Multi-Faceted Installation:** Flexible mounting options to fit diverse industrial and automation applications with ease.

## Overview

The CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer offers a reliable 20:1 speed ratio tailored for Nema23 stepper motors. Featuring a rugged aluminum alloy enclosure for enhanced thermal performance and durability, it delivers smooth, low-noise transmission ideal for professional automation tasks. Its multi-faceted installation design and included coupler make it a versatile, ready-to-integrate solution for demanding industrial applications.

## Description

desertcart.com: CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030 : 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:NMRV030-20
- Speed Ratio:20:1
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09HGY6FSJ |
| Best Sellers Rank | #76,014 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Gearboxes, Gearheads & Speed Reducers |
| Date First Available | September 29, 2021 |
| Item Weight | 2.57 pounds |
| Item model number | 3 |
| Manufacturer | CNCTOPBAOS |
| Package Dimensions | 5.79 x 5.16 x 4.09 inches |

## Product Details

- **Brand:** CNCTOPBAOS
- **Item Weight:** 1.17 Kilograms
- **Manufacturer:** CNCTOPBAOS
- **Material:** Aluminum
- **Shaft Diameter:** 14 Millimeters

## Images

![CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030 - Image 1](https://m.media-amazon.com/images/I/71a0w23HiJL.jpg)
![CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030 - Image 2](https://m.media-amazon.com/images/I/71jiMVvui+L.jpg)
![CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030 - Image 3](https://m.media-amazon.com/images/I/61ZBIqgpaGL.jpg)
![CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030 - Image 4](https://m.media-amazon.com/images/I/71HOEElp6kL.jpg)
![CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030 - Image 5](https://m.media-amazon.com/images/I/71yDQkjc45L.jpg)

## Available Options

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

## 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 NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030
- 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
- CNCTOPBAOS 8mm to 11mm Stepper Motor Shaft Sleeve 8x11mm Bore Adapter Turbine Reducer Shaft Sleeve for RV030 Worm Gear Speed Reduce RV30 NMRV030 Gearbox 0.31inch

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-20*