--- product_id: 438164265 title: "CNBTR 40T Brass Worm Gear Wheel & 5mm Hole Diameter Worm Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box" brand: "cnbtr" price: "VT12084" currency: VUV in_stock: true reviews_count: 5 category: "Cnbtr" url: https://www.desertcart.vu/products/438164265-cnbtr-40t-brass-worm-gear-wheel-and-5mm-hole-diameter store_origin: VU region: Vanuatu --- # 1:40 high reduction ratio 40 teeth precision brass gear 0.5 modulus, 5mm bore shaft CNBTR 40T Brass Worm Gear Wheel & 5mm Hole Diameter Worm Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box **Brand:** cnbtr **Price:** VT12084 **Availability:** ✅ In Stock ## Summary > ⚙️ Unlock precision power with every turn — don’t get left behind in the gear game! ## Quick Answers - **What is this?** CNBTR 40T Brass Worm Gear Wheel & 5mm Hole Diameter Worm Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box by cnbtr - **How much does it cost?** VT12084 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/438164265-cnbtr-40t-brass-worm-gear-wheel-and-5mm-hole-diameter) ## 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 Torque Reduction:** Achieve a powerful 1:40 gear ratio for efficient speed control and torque multiplication. - • **Premium Material Quality:** Crafted from corrosion-resistant brass for long-lasting performance and minimal maintenance. - • **Compact & Lightweight Design:** Streamlined worm gear shaft with 0.5 modulus fits tight spaces without compromising strength. - • **Versatile Industrial Application:** Ideal for mechanical projects requiring precise, high-ratio gear reduction in compact setups. - • **Precision Engineered Brass Gearing:** Durable 40-tooth brass wheel ensures smooth, reliable power transmission. ## Overview The CNBTR 40T Brass Worm Gear Wheel & 5mm Hole Diameter Worm Gear Shaft Kit offers a compact, high-performance 1:40 reduction ratio drive solution. Made from premium brass with a 0.5 modulus shaft and 40-tooth gear wheel, this set delivers durable, precise power transmission ideal for industrial and mechanical applications requiring efficient torque control in a lightweight form factor. ## Description Specifications: Material: Brass Modulus:0.5 Reduction Ratio: 1:40 Brand name: CNBTR Weight: 28g Worm Gear Wheel: Teeth:40 Teeth Dia: 21.2MM Height: 12MM/0.47 Inch Outer Diameter: 21MM/0.82 Inch Hole Diameter: 5MM/0.2 Inch Step Size: 15x7MM/0.59x0.27 Inch (Dia x H) Overall Size: 12x21x5MM/0.47x0.82x0.2Inch(H x OD x ID) Worm Gear Shaft: Height: 20MM/0.79 Inch Outer Diameter: 9.7MM/0.38 Inch Inner Diameter: 5MM/0.2 Inch Size: 20x9.7x5MM/0.79x0.38x0.2 Inch(H x OD x ID) Features: 1.Set include one 0.5 modulus 5MM Hole Dia brass worm gear shaft and one 40 teeth brass worm gear wheel. 2.The transmission structure of worm shaft is simple, compact, small volume and light weight. 3.Worm Shaft Z1=1, turn a round of worm gear teeth, 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. 4.High quality material selection, carefully processing create high quality product. 5.Made of brass, long time service. Package Content: 1 x Brass Worm Gear Shaft 1 x Brass Worm Wheel 2 x Screws The unique MPN label on each inner package, which confirm it passed the quality inspection and it is genuine item sold from our shop. Please offer it to us. Review: 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. - If the product you receive does not match the size or quantity, please feel free to contact us and we will be happy to solve the problem for you. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07G54YQL4 | | Best Sellers Rank | #134,948 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in Mechanical Worm Gears | | Item Weight | 30 g | | Item model number | M6180801074 | | Manufacturer | yqltd | | Package Dimensions | 7.7 x 7.4 x 1.3 cm; 30 g | ## Images ![CNBTR 40T Brass Worm Gear Wheel & 5mm Hole Diameter Worm 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 Worm Gear Wheel & 5mm Hole Diameter Worm 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 Worm Gear Wheel & 5mm Hole Diameter Worm 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 Worm Gear Wheel & 5mm Hole Diameter Worm 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 Worm Gear Wheel & 5mm Hole Diameter Worm 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 ### ⭐ Review *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. ## Frequently Bought Together - CNBTR 40T Brass Gear Wheel & 5mm Hole Diameter Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box - uxcell 6mm x 250mm 304 Stainless Steel Solid Round Rod for DIY Craft - 5pcs - WINSINN GT2 Idler Pulley - 20 Toothless, 5mm Bore, for 10mm Width Timing Belt, Aluminum - Ideal for 3D Printers, CNC Machines (5-Pack) --- ## 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.vu/products/438164265-cnbtr-40t-brass-worm-gear-wheel-and-5mm-hole-diameter](https://www.desertcart.vu/products/438164265-cnbtr-40t-brass-worm-gear-wheel-and-5mm-hole-diameter) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-15*