Linear Motion Bearing LM12UU (12mm Dia)

Overview

The Linear Motion Bearing LM12UU is a precision-engineered component designed for smooth, low-friction linear movement along a 12mm hardened steel shaft. Whether you're building a CNC router, a 3D printer, or an automated sliding mechanism, the LM12UU delivers reliable, cost-effective linear guidance. Its compact design and high load capacity make it a staple in the maker community and industrial applications alike.

Key Features

• Smooth Linear Motion: Ball-bearing design ensures minimal friction and consistent, quiet operation.
• High Load Capacity: Rated for dynamic loads up to 510 N and static loads up to 784 N, suitable for medium-duty applications.
• Compact & Durable: Measures 30mm long with a 21mm outer diameter, built with hardened steel for long-lasting performance.
• Versatile Compatibility: Fits 12mm shafts, a common size for many DIY and industrial projects.
• Easy Installation: Simple press-fit or set-screw mounting into standard bearing blocks or housings.

Technical Specifications

• Inner Diameter (ID): 12mm
• Outer Diameter (OD): 21mm
• Length: 30mm
• Dynamic Load Rating (C): 510 N
• Static Load Rating (Co): 784 N
• Bearing Type: Linear ball bearing (open type)
• Material: Hardened steel (bearing steel)

Applications & Use Cases

• 3D Printers: Ideal for guiding the X, Y, and Z axes on Cartesian-style printers.
• CNC Machines: Essential for smooth movement in router and milling machine axes.
• Automation Equipment: Used in pick-and-place machines, sliding tables, and robotic arms.
• DIY Projects: Perfect for linear slides, drawer slides, and custom motion systems.

What's Included

• 1x LM12UU Linear Motion Bearing (12mm ID)

Compatibility

• Works with any 12mm hardened steel shaft (sold separately).
• Commonly used with bearing housings or blocks (SC12UU, SK12, etc.) for easy mounting.

MOKWN Recommendation

For a complete linear motion system, pair the LM12UU with a hardened shaft and an appropriate bearing block. If you need higher load capacity or a sealed version, consider the LM12LUU (long type) or LM12UUAJ (sealed). For Egyptian makers, this bearing is an excellent choice for building cost-effective CNC and 3D printing projects. Order now and get fast delivery anywhere in Egypt!