--- product_id: 605619144 title: "12PCS LM8UU Linear Ball Bearings, 8mm Bore Dia Linear Motion Bushing with Double Side Rubber Seal Great for CNC Machine 3D Printer" brand: "melife" price: "€ 18.13" currency: EUR in_stock: true reviews_count: 8 category: "Melife" url: https://www.desertcart.pt/products/605619144-12pcs-lm8uu-linear-ball-bearings-8mm-bore-dia-linear-motion store_origin: PT region: Portugal --- # Long-lasting durability Double side rubber seal 8mm precision bore 12PCS LM8UU Linear Ball Bearings, 8mm Bore Dia Linear Motion Bushing with Double Side Rubber Seal Great for CNC Machine 3D Printer **Brand:** melife **Price:** € 18.13 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your motion game with precision and protection! ## Quick Answers - **What is this?** 12PCS LM8UU Linear Ball Bearings, 8mm Bore Dia Linear Motion Bushing with Double Side Rubber Seal Great for CNC Machine 3D Printer by melife - **How much does it cost?** € 18.13 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/605619144-12pcs-lm8uu-linear-ball-bearings-8mm-bore-dia-linear-motion) ## Best For - melife enthusiasts ## Why This Product - Trusted melife brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **12-Pack Value Bundle:** Stock up and never worry about downtime—perfect for professionals who demand consistency. - • **Carbon Steel Strength:** Robust material ensures high rigidity and reliable performance under heavy loads. - • **Precision Engineered 8mm Bore:** Fits seamlessly into your CNC or 3D printer setup for flawless linear motion. - • **Smooth, Low-Friction Movement:** Experience whisper-quiet, efficient motion that boosts your machine’s precision and speed. - • **Double Sealed for Ultimate Protection:** Keeps dust, dirt, and moisture out to extend bearing life and maintain smooth operation. ## Overview This 12-pack of LM8UU linear ball bearings features an 8mm bore diameter and double side rubber seals to prevent contamination. Made from durable carbon steel, these bearings deliver smooth, low-friction linear motion ideal for CNC machines and 3D printers. Designed for long life and high rigidity, they offer a reliable, standardized solution for professionals seeking consistent performance and easy maintenance. ## Description Introduction of Linear Bearing 1.Made of Carbon Steel material, Double Side Rubber Seal Linear Motion Ball Bearing Bushing. 2.Great for linear motion on 3D printer, cnc, and other applications. 3.These ball bearing are fitted with two rubber dust sealed to prevent ingress of dirt, water and foreign matter. 4.Bearings may require lubrication and break in period. 5.Smooth moving, low friction, high rigidity and long life. Economical, easy to maintain replace. Review: Good replacement for my Prusa MK4 - I broke one of the new bearings when assembling the printer so I purchased these as a replacement. You can feel a difference between the originals that feel more qualitative compared to these bearings but the one I replaced it's on for about 6 months and had no issues. Review: Expected product - Arrived as expected. Haven't used yet ## Features - Specifications: LM8UU, Bore Diamter (dr): 8mm, Outer Diameter (D): 15mm, Total Length (L): 24mm. - Standardized production: Smooth moving, low friction, high rigidity and long life characteristics make it suitable for bearing various parts of various sizes, which are standardized and interchangeable. - Double sealed design: Our Slide Bearing are carefully designed to be double sealed to prevent foreign particles from entering and preserve the quality of lubricant. - Applications: It is generally used on 3D printers and CNC machines. As a design tool for linear motion products, it collaborates with linear bearing to guarantee superior sports performance under high load or long stroke environments. - Buy with confidence: We consistently provide top-notch products and excellent services to our valued customers. If you encounter any issues with your purchase, please don't hesitate to reach out to us. We are committed to providing you with the best support possible. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CL3WD28D | | Bearing Number | 12 | | Bearing Type | Ball Bearing | | Best Sellers Rank | #36,427 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Linear Ball Bearings | | Brand | MELIFE | | Brand Name | MELIFE | | Compatible Lubricant | Oil, Grease | | Customer Reviews | 4.3 out of 5 stars 40 Reviews | | Included Components | Linear Ball Bearings | | Item Dimensions | 0.94 x 0.59 x 0.59 inches | | Item Thickness | 15 millimeters | | Item dimensions L x W x H | 0.94 x 0.59 x 0.59 inches | | Manufacturer | MELIFE | | Material | Carbon Steel | | Material Type | Carbon Steel | | Number of Items | 12 | | Outside Diameter | 15 millimeters | | Part Number | LM-12 | | UPC | 687117734358 | ## Product Details - **Brand:** MELIFE - **Material:** Carbon Steel - **Item dimensions L x W x H:** 0.94 x 0.59 x 0.59 inches - **Bearing Number:** 12 - **Item Thickness:** 15 Millimeters ## Images ![12PCS LM8UU Linear Ball Bearings, 8mm Bore Dia Linear Motion Bushing with Double Side Rubber Seal Great for CNC Machine 3D Printer - Image 1](https://m.media-amazon.com/images/I/71CoS3q8pGL.jpg) ## Available Options This product comes in different **Size, Item Package Quantity** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good replacement for my Prusa MK4 *by R***T on November 27, 2024* I broke one of the new bearings when assembling the printer so I purchased these as a replacement. You can feel a difference between the originals that feel more qualitative compared to these bearings but the one I replaced it's on for about 6 months and had no issues. ### ⭐⭐⭐⭐⭐ Expected product *by M***5 on July 12, 2026* Arrived as expected. Haven't used yet ### ⭐⭐⭐⭐ Worked as intended. *by M***E on April 18, 2025* Be careful as several very small ball bearings fell out of one of them when mounting it on the rail. Only slight issue is that there was a little play (a bit larger than the shaft they were on) that worked out ok when I mounted two of them in my carrier. ## Frequently Bought Together - MELIFE 12PCS LM8UU Linear Ball Bearings, 8mm Bore Dia Linear Motion Bushing with Double Side Rubber Seal Great for CNC Machine 3D Printer - 2Pcs 8mm x 350mm (0.315 x 13.78 inches) Vigorous Linear Motion Rods, Case Hardened Chrome Shaft Linear Rail Guide Shaft for 3D Printer, DIY, CNC - Metric h8 Tolerance - Linear Motion Rods 2PCS 8mmx 400mm (0.315 x 15.748 inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide for 3D Printer, DIY, CNC - Metric h8 Tolerance --- ## 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.pt/products/605619144-12pcs-lm8uu-linear-ball-bearings-8mm-bore-dia-linear-motion](https://www.desertcart.pt/products/605619144-12pcs-lm8uu-linear-ball-bearings-8mm-bore-dia-linear-motion) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-15*