---
product_id: 99334738
title: "CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box"
brand: "cnbtr"
price: "₩62844"
currency: KRW
in_stock: true
reviews_count: 6
category: "Cnbtr"
url: https://www.desertcart.kr/products/99334738-cnbtr-40t-brass-gear-wheel-and-5mm-hole-diameter-gear
store_origin: KR
region: South Korea
---

# 5mm hole diameter shaft 1:40 high reduction ratio 40T precision brass gear wheel CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box

**Brand:** cnbtr
**Price:** ₩62844
**Availability:** ✅ In Stock

## Summary

> ⚙️ Unlock next-level torque with precision brass gearing!

## Quick Answers

- **What is this?** CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box by cnbtr
- **How much does it cost?** ₩62844 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/99334738-cnbtr-40t-brass-gear-wheel-and-5mm-hole-diameter-gear)

## Best For

- cnbtr enthusiasts

## Why This Product

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

## Key Features

- • **High Reduction Ratio Power:** 1:40 gear ratio delivers significant torque multiplication for demanding applications.
- • **Compact & Lightweight Design:** Small footprint and just 30g for easy integration into your mechanical projects.
- • **Versatile Shaft Compatibility:** 5mm hole diameter shaft fits standard motor and drive shafts seamlessly.
- • **Precision Engineered Brass Gearing:** Durable brass construction ensures long-lasting, smooth power transmission.
- • **Optimized for Multi-Stage Transmission:** Ideal for setups requiring large transmission ratios with minimal complexity.

## Overview

The CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kit features a high-quality brass gear wheel with 40 teeth and a 5mm diameter shaft, delivering a 1:40 reduction ratio. Its compact, lightweight design and durable materials make it perfect for precise, high-torque mechanical transmissions in professional and hobbyist applications.

## Description

Free delivery and returns on all eligible orders. Shop CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box.

Review: unusable - What ever you do, do not purchase this item, it is not a worm and wheel. the worm has several straight groves in it, not a thread or spiral. It will not do anything as advertised. The worm will not turn the wheel as there is a fault in the manufacture. of the worm, ie it has groves not a spiral.
Review: Excellently machined worm pair. Exact to the specified dimensions.

## Features

- Set include one 0.5 modulus 5MM Hole Dia brass gear shaft and one 40 T brass gear wheel.
- The transmission structure of shaft is simple, compact, small volume and light weight.
- Shaft Z1=1, turn a round of gear T, can get a large transmission ratio, generally in the power transmission, the transmission ratio I=10-80, like big transmission ratio, if use with gear transmission, will need to take the multi-stage transmission.
- High quality material selection, carefully processing create high quality product.
- Made of brass, long time service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07G54YQL4 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 102,915 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 64 in Mechanical Worm Gears |
| Customer Reviews | 4.6 4.6 out of 5 stars (71) |
| Date First Available | 3 Aug. 2018 |
| Item Package Quantity | 1 |
| Item Weight | 30 g |
| Item model number | M6180801074 |
| Manufacturer | yqltd |
| Material | Brass |
| Package Dimensions | 7.7 x 7.4 x 1.3 cm; 30 g |
| Part Number | M6180801074 |

## Images

![CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box - Image 1](https://m.media-amazon.com/images/I/71P0hkWDqpL.jpg)
![CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box - Image 2](https://m.media-amazon.com/images/I/71bYR7jaA0L.jpg)
![CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box - Image 3](https://m.media-amazon.com/images/I/71ovCTWiJaL.jpg)
![CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box - Image 4](https://m.media-amazon.com/images/I/71uLZ2yr3vL.jpg)
![CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box - Image 5](https://m.media-amazon.com/images/I/71EUDgpmdZL.jpg)

## Customer Reviews

### ⭐ unusable
*by S***R on 13 October 2019*

What ever you do, do not purchase this item, it is not a worm and wheel. the worm has several straight groves in it, not a thread or spiral. It will not do anything as advertised. The worm will not turn the wheel as there is a fault in the manufacture. of the worm, ie it has groves not a spiral.

### ⭐⭐⭐⭐⭐ Review
*by P***N on 13 September 2025*

Excellently machined worm pair. Exact to the specified dimensions.

### ⭐⭐⭐⭐⭐ Review
*by P***P on 12 February 2024*

Buona manifattura. Come descritto dal venditore: corona da 40 denti e rapporto di riduzione 1:40 (40 giri di vite senza fine per 360° di rotazione del pignone). Sono compresi 2 grani brugola per il fissaggio sui rispettivi alberi.

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**Shop now:** [https://www.desertcart.kr/products/99334738-cnbtr-40t-brass-gear-wheel-and-5mm-hole-diameter-gear](https://www.desertcart.kr/products/99334738-cnbtr-40t-brass-gear-wheel-and-5mm-hole-diameter-gear)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-01*