Linear Motion Bearing LM20UU (20mm Dia)

Overview

Achieve precise, low-friction linear motion in your CNC machines, 3D printers, and automation projects with the LM20UU linear ball bearing. Designed to slide smoothly along a 20mm hardened steel shaft, this compact bearing provides reliable support and high rigidity for demanding mechanical applications. Its cost-effective design makes it an excellent choice for both hobbyist builds and professional prototypes.

Key Features

• Smooth, Low-Friction Motion: Ball bearings reduce friction for effortless linear movement.
• Self-Aligning Design: The bearing's floating ball retainer compensates for slight shaft misalignment.
• Compact and Lightweight: Fits easily into tight spaces without adding unnecessary bulk.
• Durable Construction: Made from high-quality bearing steel for long-lasting performance.
• Versatile Compatibility: Works with standard 20mm linear shafts (hardened and ground recommended).

Technical Specifications

• Inner Diameter: 20 mm
• Outer Diameter: 32 mm
• Length: 42 mm
• Dynamic Load Rating (C): 860 N
• Static Load Rating (C0): 1370 N
• Housing Material: Bearing Steel
• Ball Material: Chrome Steel
• Weight: Approx. 85 g

Applications & Use Cases

• CNC Routers and Mills: Ideal for linear motion on X, Y, and Z axes.
• 3D Printers: Perfect for smooth, accurate print bed and gantry movement.
• Robotics: Provides reliable linear guidance for robotic arms and actuators.
• Automation Equipment: Used in pick-and-place machines, conveyors, and linear actuators.
• DIY Projects: Great for building custom linear slides, camera sliders, and more.

What's Included

• 1x LM20UU Linear Motion Bearing

Compatibility

• Designed for use with 20mm linear shafts (hardened and ground recommended for best performance).
• Compatible with common linear bearing housings and mounts for the LM20UU size.

MOKWN Recommendation

For a complete linear motion system, pair this LM20UU bearing with a hardened 20mm linear shaft from MOKWN. Ensure the shaft is clean and lightly lubricated for optimal performance and longevity. Whether you're upgrading your CNC or building a new project, this bearing is a reliable, cost-effective choice.