---
product_id: 155381282
title: "3Dman GT2 20 Toothless Bore 5mm Aluminum Timing Belt Idler Pulley for 6mm Width 3D Printers (10pcs)"
brand: "3dman"
price: "24297CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "3 Dman"
url: https://www.desertcart.sn/products/155381282-3dman-gt2-20-toothless-bore-5mm-aluminum-timing-belt-idler
store_origin: SN
region: Senegal
---

# 5mm precision bore for perfect fit 20 toothless design for smooth belt glide Aluminum alloy for lightweight durability 3Dman GT2 20 Toothless Bore 5mm Aluminum Timing Belt Idler Pulley for 6mm Width 3D Printers (10pcs)

**Brand:** 3dman
**Price:** 24297CFA
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your 3D printing game with precision and style!

## Quick Answers

- **What is this?** 3Dman GT2 20 Toothless Bore 5mm Aluminum Timing Belt Idler Pulley for 6mm Width 3D Printers (10pcs) by 3dman
- **How much does it cost?** 24297CFA 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/155381282-3dman-gt2-20-toothless-bore-5mm-aluminum-timing-belt-idler)

## Best For

- 3dman enthusiasts

## Why This Product

- Trusted 3dman brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Pack Advantage:** 10-piece set ensures you’re always ready for maintenance or upgrades—never miss a beat.
- • **Durable Yet Lightweight:** Crafted from premium aluminum alloy to withstand mechanical stress without adding bulk.
- • **Precision Fit Guaranteed:** 5mm bore diameter engineered for exact compatibility with GT2 6mm wide belts.
- • **Versatile Industrial Use:** Ideal for 3D printers, CNC machines, milling, drilling, and other high-precision equipment.
- • **Seamless Belt Performance:** Toothless 20-tooth design ensures whisper-quiet, frictionless timing belt movement.

## Overview

The 3Dman GT2 20 Toothless Bore 5mm Aluminum Timing Belt Idler Pulley is a high-quality, lightweight component designed for GT2 6mm wide timing belts. Made from durable aluminum alloy, it offers smooth, quiet operation across various mechanical applications including 3D printers and CNC machines. Sold in a convenient 10-pack, it’s perfect for professionals seeking reliable performance and easy maintenance.

## Description

Specification: Toothless Number:20 Bore Diameter: 5mm Net Weight: 3g/pcs Material: Aluminum Package Included: GT2 20Toothless Timing Belt Pulley Bore 5mm * 10

Review: Works as needed - Worked very well on my printer
Review: Quality Product and Timely Delivery - A well-made product. Timely delivery (overnight than the expected time). Packaged well. Will recommend.

## Features

- Used for GT2 6mm Wide Timing Belt.
- 20 Toothless timing belt idler pulley, bore 5mm.
- Widely used in 3D printer, CNC, milling machine, gear forming machine, drilling machine, CNC machine tool lathe, hobbing machine or other mechanical transmission occasions.
- Material: Aluminium alloy

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 436 Reviews |

## Images

![3Dman GT2 20 Toothless Bore 5mm Aluminum Timing Belt Idler Pulley for 6mm Width 3D Printers (10pcs) - Image 1](https://m.media-amazon.com/images/I/513l8BxCfQL.jpg)

## Available Options

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

## Questions & Answers

**Q: What's the difference between the seventh and ninth choices in this listing?**
A: The seventh is - 40 teeth/8mm bore, the ninth 60 teeth/8mm bore. The 60 teeth is bigger diameter than 40 teeth.

**Q: What is the inside bore size of the idler pulley?**
A: The drawing shows 5mm

**Q: Can I use this for a Velec electric bike chain?**
A: This is a Timing Belt Idler Pulley made from Aluminum. I did not use it on my project, but used pair of flanged ball bearings for the pulley I need. If your bike chain made from steel metal I wouldn't recommended to use as a pulley for it. Aluminum will be worn out very quick.

**Q: What is the flange diameter on these?**
A: Flange diameter is 0.704"
Flange thickness is 0.039"
Belt Hub diameter is 0.473"
Belt Hub width is 0.255"

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as needed
*by M***E on January 12, 2026*

Worked very well on my printer

### ⭐⭐⭐⭐⭐ Quality Product and Timely Delivery
*by J***U on March 11, 2024*

A well-made product. Timely delivery (overnight than the expected time). Packaged well. Will recommend.

### ⭐⭐⭐⭐⭐ They seem to work as stated
*by T***N on August 31, 2025*

These work like they're supposed to. Thumbs up

## Frequently Bought Together

- 3Dman GT2 20 Toothless Bore 5mm Aluminum Timing Belt Idler Pulley for 6mm Width 3D Printers (10pcs)
- WINSINN GT2 Timing Belt Pulley 20 Teeth, 5mm Bore, for 6mm Width Belt - Ideal for 3D Printers, CNC Machines, Robotics (5-Pack)
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**Shop now:** [https://www.desertcart.sn/products/155381282-3dman-gt2-20-toothless-bore-5mm-aluminum-timing-belt-idler](https://www.desertcart.sn/products/155381282-3dman-gt2-20-toothless-bore-5mm-aluminum-timing-belt-idler)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-18*