---
product_id: 65860428
title: "WINSINN GT2 Idler Pulley - 20 Teeth, 5mm Bore, for 6mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack)"
brand: "winsinn"
price: "668626₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Winsinn"
url: https://www.desertcart.vn/products/65860428-winsinn-gt2-idler-pulley-20-teeth-5mm-bore-for-6mm
store_origin: VN
region: Vietnam
---

# 5mm bore for secure shaft fit 20 Teeth for precise power sync Aluminum with rust-resistant finish WINSINN GT2 Idler Pulley - 20 Teeth, 5mm Bore, for 6mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack)

**Brand:** winsinn
**Price:** 668626₫
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your precision game with WINSINN GT2 – where every tooth counts!

## Quick Answers

- **What is this?** WINSINN GT2 Idler Pulley - 20 Teeth, 5mm Bore, for 6mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) by winsinn
- **How much does it cost?** 668626₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/65860428-winsinn-gt2-idler-pulley-20-teeth-5mm-bore-for-6mm)

## Best For

- winsinn enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Pack Value:** Five pulleys per pack—ideal for upgrades, replacements, or scaling your projects without downtime.
- • **Rock-Solid Shaft Fit:** Engineered 5mm bore guarantees zero slippage, keeping your machine running with pinpoint accuracy.
- • **Durable Aluminum Build:** Premium aluminum with oxidation treatment resists rust and corrosion, built to last through countless print jobs.
- • **Perfect Belt Compatibility:** Optimized for 6mm GT2 timing belts, delivering seamless alignment and tension in compact mechanical systems.
- • **Precision Power Transmission:** 20-tooth design ensures flawless belt synchronization for ultra-smooth 3D printing and CNC operations.

## Overview

The WINSINN GT2 Idler Pulley is a high-quality, 20-tooth aluminum pulley designed for 6mm GT2 timing belts and 5mm shafts. Engineered for 3D printers and CNC machines, it offers precise power transmission, corrosion resistance, and reliable belt tensioning. Sold in a convenient 5-pack, it’s the go-to choice for professionals seeking durable, smooth, and accurate mechanical performance.

## Description

Enhance Your 3D Printer with WINSINN GT2 Idler Pulley - 20 Tooth, 5mm Bore, for 6mm Width Timing BeltImprove the performance of your 3D printer with this precision-engineered GT2 idler pulley. Designed for smooth operation, it ensures proper tension and alignment of timing belts in compact setups.Key FeaturesDurable Aluminum: Crafted from high-quality aluminum with surface oxidation for rust and corrosion resistance.With 20 Tooth: Features 20 Tooth for precise power transmission and accurate synchronization.5mm Bore: Fits standard 5mm shafts securely, minimizing slippage in small systems.6mm Belt Compatibility: Works seamlessly with 6mm width GT2 timing belts for optimal results.Why Choose This Pulley?This idler pulley delivers reliable performance for 3D printers and similar equipment. Its toothed design ensures precise movement, while the sturdy build supports consistent operation in precision tasks.Installation TipsClean the shaft before mounting to ensure a firm fit.Align the pulley with the belt path to prevent uneven wear.Check alignment periodically for best results.Package IncludesFive idler pulleys per pack, ideal for replacements or multiple projects. Upgrade your setup with this dependable component today.

Review: Great quality pulleys—perfect for my CNC build - I used these WINSINN GT2 idler pulleys as part of a custom CNC printer project, and they worked out better than expected. The aluminum feels solid and well-machined, and the 20-tooth profile lined up perfectly with my 6mm timing belts. Installation was quick—everything fit snugly on the 5mm shaft, and the movement stayed smooth without any wobble or noise. I’d definitely use them again on future builds. If you're working on a 3D printer or CNC system, this will do the trick. Reliable, clean finish, and no headaches.
Review: Worked Great! - Winsinn consistently makes great products. Does not matter the product. All well-made and work perfectly.

## Features

- 【Durable Aluminum Build】Made from high-quality aluminum with surface oxidation treatment for effective rust and corrosion resistance, ensuring reliable use in various settings.
- 【With 20 Tooth】Features 20 Tooth for precise power transmission, ideal for applications requiring accurate synchronization like 3D printers.
- 【5mm Bore Precision】Engineered with a 3mm bore to securely fit standard shafts, providing stability and reducing slippage during operation in compact equipment setups.
- 【For 6mm Width Belts】Compatible with 6mm width GT2 timing belts, ensuring proper alignment and performance in small-scale mechanical systems like 3D printers.
- 【Versatile Application】Perfect for 3D printers and similar devices needing consistent belt tension, offering dependable performance without complex maintenance needs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BPGYX3G |
| Best Sellers Rank | #12,255 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Mechanical Timing Pulleys |
| Date First Available | March 25, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.634 ounces |
| Item model number | 6MMHL20T5T |
| Manufacturer | WINSINN |
| Package Dimensions | 4.57 x 2.87 x 0.28 inches |

## Product Details

- **Belt Style:** Timing Belt
- **Brand:** WINSINN
- **Color:** 5mm Bore With Tooth
- **Compatible Devices:** 3D Printer
- **Material:** Aluminum

## Images

![WINSINN GT2 Idler Pulley - 20 Teeth, 5mm Bore, for 6mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) - Image 1](https://m.media-amazon.com/images/I/61-i1+yJSuL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality pulleys—perfect for my CNC build
*by D***R on July 18, 2025*

I used these WINSINN GT2 idler pulleys as part of a custom CNC printer project, and they worked out better than expected. The aluminum feels solid and well-machined, and the 20-tooth profile lined up perfectly with my 6mm timing belts. Installation was quick—everything fit snugly on the 5mm shaft, and the movement stayed smooth without any wobble or noise. I’d definitely use them again on future builds. If you're working on a 3D printer or CNC system, this will do the trick. Reliable, clean finish, and no headaches.

### ⭐⭐⭐⭐⭐ Worked Great!
*by A***Y on October 29, 2025*

Winsinn consistently makes great products. Does not matter the product. All well-made and work perfectly.

### ⭐⭐⭐⭐⭐ Needs a touch of oil
*by S***1 on November 2, 2025*

It idles fine I guess, and the dimensions were good. I did find that it spun better after I added a few drops of machine oil and let it soak into the bearing.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-26*