--- product_id: 67801273 title: "WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack)" brand: "winsinn" price: "70.53 DT" currency: TND in_stock: true reviews_count: 8 category: "Winsinn" url: https://www.desertcart.tn/products/67801273-winsinn-gt2-idler-pulley-20-toothless-5mm-bore-for-10mm store_origin: TN region: Tunisia --- # 5mm bore for secure shaft fit 20 toothless grooves for smooth belt guidance Aluminum build with rust resistance WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) **Brand:** winsinn **Price:** 70.53 DT **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your 3D printing game with precision and durability! ## Quick Answers - **What is this?** WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) by winsinn - **How much does it cost?** 70.53 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/67801273-winsinn-gt2-idler-pulley-20-toothless-5mm-bore-for-10mm) ## 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 - • **Built to Last:** Durable aluminum with oxidation treatment resists rust and corrosion in any environment. - • **Rock-Solid Shaft Fit:** 5mm bore guarantees stable mounting, eliminating wobble and misalignment. - • **Perfect Compatibility:** Optimized for 10mm width GT2 timing belts, ideal for 3D printers and CNC machines. - • **Value Pack for Multiple Projects:** Five pulleys per pack to keep your machines running flawlessly or upgrade multiple setups. - • **Precision Engineered for Smooth Operation:** 20 toothless grooves ensure whisper-quiet, slip-free belt tensioning. ## Overview The WINSINN GT2 Idler Pulley is a high-quality, toothless aluminum pulley designed for 10mm GT2 timing belts. Featuring a 5mm bore for secure shaft fitting and 20 outer grooves for smooth belt guidance, this 5-pack is perfect for enhancing the performance and reliability of 3D printers and CNC machines. Its corrosion-resistant finish ensures long-lasting use in precision applications. ## Description Enhance Your 3D Printer with WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm 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 Features**Durable Aluminum: Crafted from high-quality aluminum with surface oxidation for rust and corrosion resistance.Toothless Design: Features 20 outer grooves, perfect for tensioning or guiding belts smoothly.5mm Bore: Fits standard 5mm shafts securely, minimizing slippage in small systems.10mm 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 toothless design reduces belt wear, while the sturdy build supports consistent operation in precision tasks.**Installation Tips**Clean 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 Includes**Five idler pulleys per pack, ideal for replacements or multiple projects. Upgrade your setup with this dependable component today. Review: Worth while pulley set - Pulley set is made of a high quality aluminum, spinners function well, diameter matches description. Bought it for an Ender 3 Pro 3D printer but found out it does not work to replace any of the toothless pulleys on it. Diameter is too wide for front and side belt toothless pulleys and the inner hole diameter does not fit the screw for the back pulley. Will use these though on a Kossel 3d printer for the top pulleys. Price is reasonable for the construction. Review: Fixed my CR10S4 instantly - I ordered this once I started hearing a crackling noise coming from my Y pulley on my CR10S4. This pulley was PERFECT. It took 2 minutes to install and now I'm back to perfect prints. THANK YOU desertcart! ## 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. - 【Toothless, 20 Design】Features a toothless design with 20 outer grooves, ideal for guiding or tensioning timing belts smoothly in precision applications 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 10mm Width Belts】Compatible with 10mm 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 | B07BPHRSN5 | | Belt Style | Timing Belt | | Best Sellers Rank | #17,179 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Mechanical Timing Pulleys | | Brand Name | WINSINN | | Color | 5mm Bore Toothless | | Customer Reviews | 4.7 out of 5 stars 153 Reviews | | Manufacturer | WINSINN | | Material Type | Aluminum | | Model | 10MMHL20T5N | | Number of Items | 5 | | Part Number | 10MMHL20T5N | | Size | 10mm Belt | | UPC | 686603768907 | ## Product Details - **Belt Style:** Timing Belt - **Brand:** WINSINN - **Color:** 5mm Bore Toothless - **Compatible Devices:** 3D Printer - **Material:** Aluminum ## Images ![WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) - Image 1](https://m.media-amazon.com/images/I/61UKpH3wohL.jpg) ![WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) - Image 2](https://m.media-amazon.com/images/I/51s+fhXiZ-L.jpg) ![WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) - Image 3](https://m.media-amazon.com/images/I/51dCrMCNvxL.jpg) ![WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) - Image 4](https://m.media-amazon.com/images/I/51OQUjUAuRL.jpg) ![WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) - Image 5](https://m.media-amazon.com/images/I/5169fHbOK+L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: How do you insert an axle into the bearing-- if it's too small it won't engage the bearing. Does one crimp it somehow?** A: The axel should be only slightly smaller in diameter of the inner hole on the pulley. Mine is held in place on my printer by the sidewall of the bracket and nylon bushings on either side of the pulley that holds it onto my printer and keeping it aligned with the drive motors pulley on the other end. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worth while pulley set *by T***. on January 29, 2020* Pulley set is made of a high quality aluminum, spinners function well, diameter matches description. Bought it for an Ender 3 Pro 3D printer but found out it does not work to replace any of the toothless pulleys on it. Diameter is too wide for front and side belt toothless pulleys and the inner hole diameter does not fit the screw for the back pulley. Will use these though on a Kossel 3d printer for the top pulleys. Price is reasonable for the construction. ### ⭐⭐⭐⭐⭐ Fixed my CR10S4 instantly *by C***N on March 9, 2020* I ordered this once I started hearing a crackling noise coming from my Y pulley on my CR10S4. This pulley was PERFECT. It took 2 minutes to install and now I'm back to perfect prints. THANK YOU AMAZON! ### ⭐⭐⭐⭐⭐ A good purchase if you need this type of item for a DIY project. *by A***T on October 2, 2019* These were purchased as part of a project to build a DIY CNC router. I have no complaints and they do what they need to do. No cosmetic defects, no mechanical issues. These rotate smoothly and don't have any issues that I have noticed. Overall, if you think you need something like this in your project, the WINSINN product is a good choice. Full disclosure: This review was made as part of the early reviewer program. If I reviewed this product without this program, I would have given the same rating. ## Frequently Bought Together - WINSINN GT2 Idler Pulley 20 Toothless 5mm Bore 10mm Width Timing Pulley Wheel Aluminum for 3D Printer (Pack of 5Pcs) - WINSINN GT2 Pulley 16 Teeth 5mm bore 10mm Width 16T Timing Belt Pulley Wheel Aluminum for 3D Printer (Pack of 5Pcs) - 5M GT2 Timing Belt, Upgrade Non-Slip Version, Width 6mm, Fit for 3D Printer and Most Belt Driven Printers --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/67801273-winsinn-gt2-idler-pulley-20-toothless-5mm-bore-for-10mm](https://www.desertcart.tn/products/67801273-winsinn-gt2-idler-pulley-20-toothless-5mm-bore-for-10mm) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-17*