Long LM8LUU Long Type Linear Motion Slider Linear Bushing, Bearing for 8mm Shaft

LM8LUU Long Type Linear Bushing — Linear Motion Ball Bearing for 8mm Shaft

The LM8LUU is a long-type linear motion ball bushing designed to slide smoothly along an 8mm precision shaft, converting rotary ball-bearing technology into linear travel. Compared to the standard LM8UU, the extended body length gives greater contact area along the shaft, improving stability, resistance to tilting, and load-bearing capacity — ideal where extra rigidity or reduced play is needed.

Internally, recirculating ball bearings run along the shaft surface inside the bushing, allowing smooth, low-friction linear movement with minimal wobble. It’s commonly used in 3D printing and CNC builds where the standard-length bushing isn’t rigid enough for the application.

Product Details

Features

• Smooth, low-friction linear travel along an 8mm precision shaft
• Extended body length for greater rigidity and reduced tilting/play vs. standard type
• Recirculating ball design for consistent, repeatable motion
• Higher load capacity and stability than the standard LM8UU
• Compact cylindrical housing, easy to mount in standard linear bearing blocks

Applications

• 3D printer X/Y/Z axis linear motion, especially heavier gantries or longer unsupported spans
• CNC machines and engraving tools needing extra axis rigidity
• Robotics arms and sliding mechanisms under higher load
• General linear motion and automation projects requiring reduced wobble

Usage Note

• Requires a smooth (unthreaded), precision-ground 8mm shaft for proper operation — not compatible with threaded rod or rough-surfaced shafts
• Keep the shaft clean and lightly lubricated for smooth, long-lasting performance
• Confirm mounting bracket/block compatibility, as the longer body may require a bracket sized for the long-type bushing

Package Includes

• 1 x LM8LUU Long Type Linear Bushing

Note: Product images are for illustrative purposes; actual product may vary slightly in finish or packaging.