--- product_id: 545630257 title: "300mm Ball Screw SFU1605 300mm Ballscrew RM1605 300mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch)" brand: "guwanji" price: "€ 99.62" currency: EUR in_stock: true reviews_count: 8 category: "Guwanji" url: https://www.desertcart.hr/products/545630257-300mm-ball-screw-sfu1605-300mm-ballscrew-rm1605-300mm-with-ballnut store_origin: HR region: Croatia --- # 400mm length precision 5mm pitch smooth motion 16mm diameter robust shaft 300mm Ball Screw SFU1605 300mm Ballscrew RM1605 300mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) **Brand:** guwanji **Price:** € 99.62 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate Your CNC Game with Precision That Moves You ## Quick Answers - **What is this?** 300mm Ball Screw SFU1605 300mm Ballscrew RM1605 300mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) by guwanji - **How much does it cost?** € 99.62 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/545630257-300mm-ball-screw-sfu1605-300mm-ballscrew-rm1605-300mm-with-ballnut) ## Best For - guwanji enthusiasts ## Why This Product - Trusted guwanji brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete Mounting Kit Included:** BK12 & BF12 supports plus a 6.35x10mm coupler for effortless installation and stability. - • **Trusted in High-Stakes Industries:** Used in aerospace and automotive power steering—engineered for reliability where it counts. - • **Durability That Outlasts the Competition:** Shiny, wear-resistant surface extends lifecycle multiple times—built to endure heavy-duty use. - • **Precision Engineered for Peak Performance:** C7 grade accuracy ensures ultra-smooth, wear-resistant operation for CNC mastery. - • **Low Starting Torque for Effortless Control:** Minimal friction design means smoother starts and precise motion control every time. ## Overview The GUWANJI 400mm Ball Screw SFU1605 combines a 16mm diameter shaft with a 5mm pitch and C7 precision grade for exceptional accuracy and durability. Included are BK12 and BF12 end supports plus a coupler, ensuring easy installation and stable operation. Designed for low starting torque and extended lifecycle, this ballscrew is trusted in aerospace and automotive applications, making it the ultimate upgrade for professional CNC machining. ## Description GUWANJI 300mm Ball Screw SFU1605 300mm Ballscrew RM1605 300mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch): desertcart.com: Industrial & Scientific Review: Very accurate - excellent product. I built DIY CNC using this item with other items. Review: Heavy, solidly built unit. - Heavy and strong. These would be an upgrade to anyone looking to update their CNC. I couldn't believe the size and weight of these things. Included all parts and was a great value when you compare to other suppliers. ## Features - Ballscrew SFU1605 300 mm, BK/BF 12 End Support, 6.35x10 mm Coupler, DSG16H Ballnut Housing, RM1605 diameter 16 mm, pitch 5 mm overall length 11.8 inch/300 mm(including with end machined length) - SFU1605 ballscrew with shiny surface matching with C7 precision, more resistant to wear and tear, greatly extending the life cycle of the ball screw life increased several times - With end Machined ballscrew RM/SFU1605 with Ball nut Housing, minimum starting torque, you can easily use it. Compact design and easy to mount and dismount - Precision is assured because of thorough quality control system, do not remove the ball screw nut from the ball screw, because it is matched, or it will be difficult to install it again - The ball screws are widely used in aircraft and missiles to move control surfaces, especially for electric fly by wire, and in automobile power steering to translate rotary motion from an electric motor to axial motion of the steering rack ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.4 out of 5 stars 59 Reviews | ## Images ![300mm Ball Screw SFU1605 300mm Ballscrew RM1605 300mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) - Image 1](https://m.media-amazon.com/images/I/61JdHac95tL.jpg) ![300mm Ball Screw SFU1605 300mm Ballscrew RM1605 300mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) - Image 2](https://m.media-amazon.com/images/I/51ehGao7rEL.jpg) ![300mm Ball Screw SFU1605 300mm Ballscrew RM1605 300mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) - Image 3](https://m.media-amazon.com/images/I/51Bvb5E9ZrL.jpg) ![300mm Ball Screw SFU1605 300mm Ballscrew RM1605 300mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) - Image 4](https://m.media-amazon.com/images/I/610dwUHVMdS.jpg) ![300mm Ball Screw SFU1605 300mm Ballscrew RM1605 300mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) - Image 5](https://m.media-amazon.com/images/I/71602peAYUS.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very accurate *by O***G on July 17, 2025* excellent product. I built DIY CNC using this item with other items. ### ⭐⭐⭐⭐⭐ Heavy, solidly built unit. *by S***H on January 21, 2026* Heavy and strong. These would be an upgrade to anyone looking to update their CNC. I couldn't believe the size and weight of these things. Included all parts and was a great value when you compare to other suppliers. ### ⭐⭐⭐⭐⭐ Great ball screw set *by A***R on July 10, 2024* Great ball screw set. It's not aerospace grade $500 set but it's fine for what it is. The screw rod is SUPER HARD and I would try to design my project around the available sizes and avoid cutting it. Well packaged and ball screw rod and ball screw is double packed within a cardboard tube inside a cardboard box. The bearing blocks, aluminum mount and screws are well packed too. --- ## 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/545630257-300mm-ball-screw-sfu1605-300mm-ballscrew-rm1605-300mm-with-ballnut](https://www.desertcart.hr/products/545630257-300mm-ball-screw-sfu1605-300mm-ballscrew-rm1605-300mm-with-ballnut) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-25*