--- product_id: 89760392 title: "550mm Ball Screw SFU1605 550mm Ballscrew RM1605 550mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch)" price: "$137.32" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/89760392-550mm-ball-screw-sfu1605-550mm-ballscrew-rm1605-550mm-with-ballnut store_origin: US region: United States of America --- # 550mm length precision 5mm pitch for smooth motion 16mm diameter robust shaft 550mm Ball Screw SFU1605 550mm Ballscrew RM1605 550mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) **Price:** $137.32 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your CNC game with precision that professionals trust! ## Quick Answers - **What is this?** 550mm Ball Screw SFU1605 550mm Ballscrew RM1605 550mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) - **How much does it cost?** $137.32 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/89760392-550mm-ball-screw-sfu1605-550mm-ballscrew-rm1605-550mm-with-ballnut) ## Best For - Customers looking for quality international products ## Why This Product - 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. - • **Precision Engineered for CNC Mastery:** C7 grade accuracy ensures ultra-smooth, wear-resistant performance that lasts. - • **Effortless Motion with Minimal Torque:** Low starting torque design means smoother startup and less strain on your machine. - • **Durability That Outlasts the Competition:** Shiny, wear-resistant surface extends lifecycle multiple times over standard screws. - • **Trusted by Aerospace & Automotive Innovators:** Used in aircraft control systems and power steering for reliable, precise motion control. ## Overview The 550mm SFU1605 Ball Screw with RM1605 shaft and DSG16H ballnut housing delivers C7 precision and exceptional durability. Featuring a 16mm diameter and 5mm pitch, it includes BK12/BF12 end supports and a coupler for seamless CNC integration. Engineered for minimal starting torque and extended lifecycle, this ballscrew is a proven choice in aerospace and automotive applications, now available to elevate your DIY or professional CNC projects. ## Description Product description 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 550 mm, BK/BF 12 End Support, 6.35x10 mm Coupler, DSG16H Ballnut Housing, RM1605 diameter 16 mm, pitch 5 mm overall length 21.7 inch/550 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 ![550mm Ball Screw SFU1605 550mm Ballscrew RM1605 550mm 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) ![550mm Ball Screw SFU1605 550mm Ballscrew RM1605 550mm 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) ![550mm Ball Screw SFU1605 550mm Ballscrew RM1605 550mm 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) ![550mm Ball Screw SFU1605 550mm Ballscrew RM1605 550mm 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) ![550mm Ball Screw SFU1605 550mm Ballscrew RM1605 550mm 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. ## Frequently Bought Together - GUWANJI 700mm Ball Screw SFU1605 700mm Ballscrew RM1605 700mm with a Ballnut + 1 Set BK12 and BF12 Support, and Coupler for CNC Machine(Diameter 16mm, 5mm Pitch) - ANWOK 2Pcs Linear Guide Rail HGR20-800mm with 4Pcs HGH20CA Square Type Carriage Bearing Block Linear Rail Set Slide Guide Rod Overall Length 31.5 inch(800mm) for DIY CNC Routers Lathes Mills - ANWOK Ball Screw RM/SFU1605-600mm 16mm with Metal Deflector Ball Screw Nut Housing Bracket and End Supports Bearing BK/BF10 for CNC Project DIY, 92337D14T5W917AB11RJLVU --- ## 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.us/products/89760392-550mm-ball-screw-sfu1605-550mm-ballscrew-rm1605-550mm-with-ballnut](https://www.desertcart.us/products/89760392-550mm-ball-screw-sfu1605-550mm-ballscrew-rm1605-550mm-with-ballnut) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-21*