--- product_id: 134101803 title: "3Dman GT2 20 Toothless Bore 5mm Aluminum Idler Pulley for 6mm Width Timing Belt 3D Printers (10pcs)" brand: "3dman" price: "103.19 DT" currency: TND in_stock: true category: "3 Dman" url: https://www.desertcart.tn/products/134101803-3dman-gt2-20-toothless-bore-5mm-aluminum-idler-pulley-6mm store_origin: TN region: Tunisia --- # 5mm precision bore for perfect fit 20 toothless design for smooth belt glide Lightweight 3g aluminum alloy build 3Dman GT2 20 Toothless Bore 5mm Aluminum Idler Pulley for 6mm Width Timing Belt 3D Printers (10pcs) **Brand:** 3dman **Price:** 103.19 DT **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 Idler Pulley for 6mm Width Timing Belt 3D Printers (10pcs) by 3dman - **How much does it cost?** 103.19 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/134101803-3dman-gt2-20-toothless-bore-5mm-aluminum-idler-pulley-6mm) ## 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:** Includes 10 pulleys to keep your projects running without interruption—stock up and stay ahead. - • **Durable Aluminum Alloy:** Crafted from lightweight yet robust aluminum for long-lasting mechanical reliability. - • **Precision Fit Guaranteed:** 5mm bore diameter engineered for flawless alignment with GT2 6mm wide timing belts. - • **Seamless Belt Performance:** Toothless 20-tooth design ensures whisper-quiet, frictionless timing belt movement. - • **Versatile Industrial Compatibility:** Perfect for 3D printers, CNC machines, milling, drilling, and gear forming applications. ## Overview The 3Dman GT2 20 Toothless Bore 5mm Aluminum Idler Pulley is a high-precision, lightweight component designed for GT2 6mm wide timing belts. Made from durable aluminum alloy, this 10-pack of pulleys ensures smooth, quiet operation across a variety of mechanical transmission systems including 3D printers and CNC machines. ## Description Specification: Toothless Number:20 Bore Diameter: 5mm Net Weight: 3g/pcs Material: Aluminum Package Included: GT2 20Toothless Timing Belt Pulley Bore 5mm * 10 ## Features - Used for GT2 6mm Wide Timing Belt. - 20 Toothless timing belt idler pulley, bore 5mm. - Material:Aluminium alloy. - Widely used in 3D printer, CNC, milling machine, gear forming machine, drilling machine, CNC machine tool lathe, hobbing machine or other mechanical transmission occasions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07RV2T54M | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 84,337 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 39 in 3D Printer Timing Belts | | Colour | 20Toothless 5mm Bore | | Customer Reviews | 4.5 4.5 out of 5 stars (232) | | Date First Available | 14 May 2019 | | Guaranteed software updates until | unknown | | Item Weight | 40 g | | Manufacturer | 3Dman | | Manufacturer reference | 20-05-0514-10 | | Material | aluminum | | Measurement System | Metric | | Package Dimensions | 11.5 x 8.7 x 0.9 cm; 40 g | | Part number | 20-05-0514-10 | | Size | 20 Toothless Bore 5mm | ## Images ![3Dman GT2 20 Toothless Bore 5mm Aluminum Idler Pulley for 6mm Width Timing Belt 3D Printers (10pcs) - Image 1](https://m.media-amazon.com/images/I/41rkG1-A2xL.jpg) ![3Dman GT2 20 Toothless Bore 5mm Aluminum Idler Pulley for 6mm Width Timing Belt 3D Printers (10pcs) - Image 2](https://m.media-amazon.com/images/I/41cK1sajf8L.jpg) ![3Dman GT2 20 Toothless Bore 5mm Aluminum Idler Pulley for 6mm Width Timing Belt 3D Printers (10pcs) - Image 3](https://m.media-amazon.com/images/I/41RbGdrJ1QL.jpg) ![3Dman GT2 20 Toothless Bore 5mm Aluminum Idler Pulley for 6mm Width Timing Belt 3D Printers (10pcs) - Image 4](https://m.media-amazon.com/images/I/41gND6e6R1L.jpg) ![3Dman GT2 20 Toothless Bore 5mm Aluminum Idler Pulley for 6mm Width Timing Belt 3D Printers (10pcs) - Image 5](https://m.media-amazon.com/images/I/41DOHShlqhL.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" ## 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) - 3D Printing GT2 Timing Belt, Zeelo 10 Meters (32.8ft) GT2 Open Timing Belt 2mm Pitch 6mm Width Rubber Fiberglass Fit for RepRap Prusa Mendel Rostock CR-10 Ender 3 3D Printers - Black --- ## 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/134101803-3dman-gt2-20-toothless-bore-5mm-aluminum-idler-pulley-6mm](https://www.desertcart.tn/products/134101803-3dman-gt2-20-toothless-bore-5mm-aluminum-idler-pulley-6mm) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-02*