---
product_id: 548650636
title: "CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor NMRV30 Output Bore/Hole 14mm Shaft"
brand: "cnctopbaos"
price: "109761CFA"
currency: XOF
in_stock: true
reviews_count: 5
category: "Cnctopbaos"
url: https://www.desertcart.sn/products/548650636-cnctopbaos-nmrv030-worm-gear-reducer-speed-ratio-40-1-rv30
store_origin: SN
region: Senegal
---

# Nema23 compatible input flange 40:1 precision speed ratio High-grade aluminum alloy casing CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor NMRV30 Output Bore/Hole 14mm Shaft

**Brand:** cnctopbaos
**Price:** 109761CFA
**Availability:** ✅ In Stock

## Summary

> ⚙️ Unlock precision and power with every turn—gear up like a pro!

## Quick Answers

- **What is this?** CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor NMRV30 Output Bore/Hole 14mm Shaft by cnctopbaos
- **How much does it cost?** 109761CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/548650636-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

- • **Precision Power Control:** Achieve exact 40:1 speed reduction for flawless motor synchronization.
- • **Whisper-Quiet Operation:** Engineered for smooth transmission with minimal noise—keep your workspace focused.
- • **Robust Aluminum Alloy Build:** Durable, lightweight enclosure ensures superior thermal management and longevity.
- • **Seamless Nema23 Integration:** Designed specifically for Nema23 stepper and servo motors—plug and play efficiency.
- • **Versatile Multi-Faceted Mounting:** Flexible installation options to fit your custom automation setup effortlessly.

## Overview

The CNCTOPBAOS NMRV030 Worm Gear Reducer offers a high-precision 40:1 speed ratio tailored for Nema23 stepper and servo motors. Crafted with a premium aluminum alloy housing, it delivers excellent thermal performance and durability while maintaining smooth, low-noise operation. Its multi-faceted mounting design ensures versatile installation, making it an essential upgrade for professionals seeking reliable, efficient motion control in automation and robotics.

## Description

Package included:1x NMRV030-40 Worm Gear ReducerFeature:Model:NMRV030-40Type:Worm Gear ReducerSpeed Ratio:40:1Input Bore Size:11mm,0.43"Output Bore Size:14mm,0.55"Input Flange Model:Nema23Application:Matched with Nema23 Servo Motor/Stepper MotorGoods Color:BlueAdvantages:High-quality aluminum alloy enclosurethermal performancelarge carrying capacityThe multi-faceted installationSmooth transmissionLow noiseSleeve and output shaft are not included in the package,these accessories are also sold in my desertcart store.

Review: 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: 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:NMRV030-40
- Speed Ratio:40:1
- Input Bore Size:11mm, 0.43" ; Output Bore Size:14mm, 0.55"
- Input Flange Model:Nema23 ; Application:Matched with Nema23 Servo/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 | B09HGS2SSG |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 272,750 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 177 in Gearboxes, Gearheads & Speed Reducers |
| Customer Reviews | 4.5 4.5 out of 5 stars (33) |
| Date First Available | 29 Sept. 2021 |
| Horsepower | 40 Watts |
| Item Package Quantity | 1 |
| Item Weight | 1.27 kg |
| Item model number | 6 |
| Manufacturer | CNCTOPBAOS |
| Material | Aluminium |
| Package Dimensions | 14.2 x 11.99 x 10.21 cm; 1.27 kg |
| Part number | 6 |
| Style | I=40 |

## Product Details

- **Brand:** CNCTOPBAOS
- **Horsepower:** 40 Watts
- **Item weight:** 1.27 Kilograms
- **Manufacturer:** CNCTOPBAOS
- **Material:** Aluminium

## Images

![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor NMRV30 Output Bore/Hole 14mm Shaft - Image 1](https://m.media-amazon.com/images/I/416hhvSPP5L.jpg)
![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor NMRV30 Output Bore/Hole 14mm Shaft - Image 2](https://m.media-amazon.com/images/I/41LEEBBDyTL.jpg)
![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor NMRV30 Output Bore/Hole 14mm Shaft - Image 3](https://m.media-amazon.com/images/I/41h1I+9qo3L.jpg)
![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor NMRV30 Output Bore/Hole 14mm Shaft - Image 4](https://m.media-amazon.com/images/I/51GvkHbnscL.jpg)
![CNCTOPBAOS NMRV030 Worm Gear Reducer Speed Ratio 40:1 RV30 NMRV-030 Worm Gearbox Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor NMRV30 Output Bore/Hole 14mm Shaft - Image 5](https://m.media-amazon.com/images/I/51VXzt8hGDL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Review
*by P***T on 1 December 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.

### ⭐⭐⭐⭐⭐ Review
*by L***E on 19 August 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.

### ⭐⭐⭐⭐⭐ Review
*by T***S on 24 April 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 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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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-24*