SK8UU Linear Rail Shaft Support
The SK8 Linear Rail Shaft Support is a precision-machined aluminum alloy bracket designed to securely hold 8 mm linear shafts in CNC, 3D printer, and linear motion systems. Featuring an M3 clamping bolt for a firm grip on the shaft and a 32 mm mounting hole spacing for M5 base screws, it provides stable, vibration-free support. Compact, lightweight (58 g), and finished in a clean silver tone — ideal for DIY automation and motion projects.
حامل المحور الخطي SK8 هو قاعدة مصنوعة بدقة من سبيكة الألمنيوم، مصممة لتثبيت محاور خطية بقطر 8 ملم في أنظمة CNC والطابعات ثلاثية الأبعاد وأنظمة الحركة الخطية. يحتوي على برغي تثبيت M3 لإحكام القبضة على المحور، ومسافة بين فتحات التثبيت 32 ملم لبراغي قاعدة M5، مما يوفر دعماً ثابتاً وخالياً من الاهتزاز. تصميم مدمج وخفيف الوزن (58 جرام) بلون فضي أنيق — مثالي لـمشاريع الأتمتة والحركة الخطية.
The SK8 Linear Rail Shaft Support is an essential mechanical component for any project involving linear motion systems. It is designed to securely hold a standard 8 mm diameter linear shaft in a fixed, horizontal, or vertical orientation, providing a stable mounting point that resists vibration, deflection, and shaft rotation under load.
Machined from high-quality aluminum alloy, the SK8 combines lightweight construction with excellent rigidity — critical for accurate linear motion in CNC routers, 3D printers, laser cutters, and DIY automation rigs. The body is precision-finished and anodized in a clean silver tone, giving it both durability and a professional appearance.
A central 8 mm bore accepts standard linear shafts (such as those used with LM8UU linear bearings), and an M3 clamping bolt on the side compresses the bore around the shaft for a firm, slip-free grip. The base features two mounting holes spaced 32 mm apart (center to center), designed for M5 mounting bolts (sold separately). This standard footprint makes the SK8 a drop-in match for T-slot aluminum extrusion, standard threaded plates, and the bases of most popular DIY CNC and 3D printer designs.
Typically used in pairs to support both ends of a linear shaft, the SK8 ensures the rod remains perfectly parallel to the motion axis, allowing the linear bearings sliding on it to move smoothly without binding. It is fully compatible with LM8UU, LM8LUU, and similar 8 mm linear bearings, as well as SBR8 and SCS8UU bearing blocks when used with appropriate shafts.
Whether you're building a 3D printer from scratch, designing a custom CNC machine, or assembling a precision linear stage for a laboratory or workshop project, the SK8 provides the mechanical foundation for reliable, repeatable linear motion.
Specifications
- Model: SK8
- Type: Linear Rail Shaft Support (End Mount)
- Material: Aluminum Alloy (anodized)
- Color: Silver Tone
- Shaft Bore Diameter: 8 mm
- Clamping Bolt: M3 (included)
- Recommended Mounting Bolt: M5 (not included)
- Mounting Hole Distance (Center to Center): 32 mm / 1.26"
- Overall Dimensions (L × W × H): 41 × 14 × 33 mm (1.6" × 0.6" × 1.3")
- Net Weight: 58 g
- Compatible Bearings: LM8UU, LM8LUU, SCS8UU, and similar 8 mm linear bearings
- Orientation: Horizontal or vertical mounting
Applications
- 3D Printers — Prusa, Mendel, RepRap, and DIY custom builds
- CNC Routers and Mills — small to medium-sized DIY machines
- Laser Cutters and Engravers
- Plotters and Drawing Machines
- Linear Motion Stages for lab and prototyping work
- Camera Sliders and Motion Rigs for photography and filmmaking
- Pick-and-Place Machines
- Automated Workshop Tools and conveyor systems
- Educational Robotics and Mechatronics Projects
- XY/XYZ Gantry Systems
- Custom Linear Actuators