--- product_id: 454718594 title: "CNCTOPBAOS 8x11mm Stepper Motor Shaft Sleeve Adapter for NMRV030 Worm Gear" brand: "cnctopbaos" price: "€ 63.75" currency: EUR in_stock: true reviews_count: 3 category: "Cnctopbaos" url: https://www.desertcart.hr/products/454718594-cnctopbaos-8x11mm-stepper-motor-shaft-sleeve-adapter-for-nmrv030-worm store_origin: HR region: Croatia --- # Compact 20mm length Precision 8mm to 11mm fit Durable steel construction CNCTOPBAOS 8x11mm Stepper Motor Shaft Sleeve Adapter for NMRV030 Worm Gear **Brand:** cnctopbaos **Price:** € 63.75 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your drive with precision and power — don’t let your gear game lag behind! ## Quick Answers - **What is this?** CNCTOPBAOS 8x11mm Stepper Motor Shaft Sleeve Adapter for NMRV030 Worm Gear by cnctopbaos - **How much does it cost?** € 63.75 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/454718594-cnctopbaos-8x11mm-stepper-motor-shaft-sleeve-adapter-for-nmrv030-worm) ## Best For - cnctopbaos enthusiasts ## Why This Product - Trusted cnctopbaos brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged Steel Build:** Crafted from high-grade steel to ensure long-lasting durability and resistance under heavy mechanical loads. - • **Compact & Efficient:** At just 20mm length, it fits snugly without adding bulk, optimizing your gear reducer setup. - • **Plug & Play Upgrade:** Easy installation means you can upgrade your worm gear reducer shaft sleeve in minutes—no downtime, all gain. - • **Precision Engineering:** Tight tolerances guarantee minimal play and maximum torque transfer, elevating your machine’s performance. - • **Seamless Compatibility:** Perfectly adapts 8mm stepper motor shafts to 11mm NMRV030 worm gear bores for flawless integration. ## Overview The CNCTOPBAOS 8x11mm Stepper Motor Shaft Sleeve Adapter is a precision-engineered steel component designed to seamlessly connect 8mm stepper motor shafts to 11mm bore NMRV030 worm gear reducers. Compact and durable, it ensures efficient torque transfer and reliable performance in demanding mechanical applications. ## Description Package includes: 1 x 8mm to 11mm Shaft SleeveSpecification:Type: Turbine Reducer Shaft SleeveInner diameter: 8mm (0.31")Out diameter: 11mm (0.43")Length: 20mm (0.79")Inner height: 7.5mm (0.3")Overall height: 12mm (0.47")For RV30 RV030 Worm Gear Speed Reduce Stepper motor Review: Deception - Cette article n’est pas neuf il est tout rouillé Review: Sirve perfecto para el nema 8mm de salida - Perfecto encaje para el nema de 8mm de salida ## Features - Application: NMRV030 NMRV30 Worm Gear Reducer - Application size: Stepper motor 8 mm 0.31 inch to 11 mm 0.43 inch bore adapter - Inner diameter: 8 mm 0.31 inch; Out diameter: 11 mm 0.43 inch; Length: 20 mm 0.78 inch - Material: Steel - Turbine reducer shaft sleeve 8mm to 11mm bore adapter for worm gear reducer shaft sleeve ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | CNCTOPBAOS | | Manufacturer | CNCTOPBAOS | | Country of Origin | USA | | Model number | RV030 | | Item Weight | 20 g | | Package Dimensions | 18.2 x 16.3 x 1.2 cm; 20 g | | Item model number | RV030 | | Are batteries included? | No | ## Images ![CNCTOPBAOS 8x11mm Stepper Motor Shaft Sleeve Adapter for NMRV030 Worm Gear - Image 1](https://m.media-amazon.com/images/I/71DEdH4hBiL.jpg) ![CNCTOPBAOS 8x11mm Stepper Motor Shaft Sleeve Adapter for NMRV030 Worm Gear - Image 2](https://m.media-amazon.com/images/I/71+tDYVXupL.jpg) ![CNCTOPBAOS 8x11mm Stepper Motor Shaft Sleeve Adapter for NMRV030 Worm Gear - Image 3](https://m.media-amazon.com/images/I/716WrziU2kL.jpg) ![CNCTOPBAOS 8x11mm Stepper Motor Shaft Sleeve Adapter for NMRV030 Worm Gear - Image 4](https://m.media-amazon.com/images/I/71Af1rBCzxL.jpg) ![CNCTOPBAOS 8x11mm Stepper Motor Shaft Sleeve Adapter for NMRV030 Worm Gear - Image 5](https://m.media-amazon.com/images/I/81JNFyVXorL.jpg) ## Customer Reviews ### ⭐ Deception *by S***. on 9 April 2025* Cette article n’est pas neuf il est tout rouillé ### ⭐⭐⭐⭐⭐ Sirve perfecto para el nema 8mm de salida *by S***N on 25 February 2026* Perfecto encaje para el nema de 8mm de salida ### ⭐⭐⭐⭐⭐ Works ok but looks rough *by C***S on 21 April 2026* Seems to be machined from solid steel, the CNC left ridges and and there's a burr in the inner motor shaft area, this is a low quality piece but it works ## Frequently Bought Together - CNCTOPBAOS 8mm to 11mm Stepper Motor Shaft Sleeve 8x11mm Bore Adapter Turbine Reducer Shaft Sleeve for RV030 Worm Gear Speed Reduce RV30 NMRV030 Gearbox 0.31inch - CNCTOPBAOS Output Double Shaft Diameter 14mm 0.55" Dual Output Shaft Length 130mm Fit for Worm Reducer Gearbox NMRV030 RV030 Nema23 Stepper Motor with Gaskets S Ring Corner pin - CNCTOPBAOS NMRV30 Worm Gearbox Speed Reducer NMRV030 Worm Gear Reducer Speed Ratio 20:1 RV30 Square Type for Nema23 Stepper Motor Output Hole 14mm Shaft NMRV-030 --- ## 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.hr/products/454718594-cnctopbaos-8x11mm-stepper-motor-shaft-sleeve-adapter-for-nmrv030-worm](https://www.desertcart.hr/products/454718594-cnctopbaos-8x11mm-stepper-motor-shaft-sleeve-adapter-for-nmrv030-worm) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-07*