What the LM8LUU linear bearing does

The LM8LUU (8 x 15 x 45 mm) Linear Bearing is a high-precision long-type linear motion bearing made for smooth, efficient travel along an 8 mm shaft. The extended 45 mm length adds support and stability for linear systems that need more consistent guidance than a standard-length bearing can provide.

This linear bearing is suited to motion assemblies where smoother movement, reduced vibration, and accurate travel are important to overall machine performance.

Key features of the LM8LUU bearing

  • High-precision design: Supports smooth and accurate linear motion with minimal friction.
  • Durable bearing steel construction: Built from high-quality bearing steel for strength, wear resistance, and long service life.
  • Double-extended length: The 45 mm body improves stability and load distribution compared to standard LM8UU linear bearings.
  • Sealed ball circuits: Multiple ball circuits help distribute loads evenly and reduce operating noise during motion.

Where an LM8LUU linear bearing is commonly used

The LM8LUU linear bearing is commonly used in 3D printers, CNC machines, robotics, and other linear motion systems that require precise guided movement.

For builds and repairs where extended support matters, this long linear bearing is a practical choice for carriages, sliding assemblies, and motion axes that benefit from smoother travel and better stability under load.

Specifications

Technical specifications

ModelLM8LUU
Inner Diameter8 mm
Outer Diameter15 mm
Length45 mm
TypeLong-type linear motion bearing
MaterialBearing steel
Compatibility

Will it work with my printer?

Works with 8 mm smooth shafts

The LM8LUU linear bearing is designed for linear motion along an 8 mm shaft.

Common machine compatibility

This long-type linear bearing is commonly used in 3D printers, CNC machines, robotics, and other linear motion systems that require precise movement.

FAQ

Frequently asked

What is an LM8LUU linear bearing used for?

The LM8LUU linear bearing is used to provide smooth, accurate linear motion on an 8 mm shaft. Common applications include 3D printers, CNC machines, robotics, and other guided motion systems.

What size shaft fits an LM8LUU linear bearing?

An LM8LUU bearing is designed to run on an 8 mm shaft. The listed bearing size is 8 x 15 x 45 mm.

What is the difference between LM8LUU and LM8UU?

The LM8LUU is a longer version of the standard LM8UU. At 45 mm long, the LM8LUU provides improved stability and load distribution for applications that need more support.

Is an LM8LUU bearing good for 3D printer upgrades or repairs?

The LM8LUU bearing is commonly used in 3D printers where smooth linear travel and reduced vibration are important. Its extended length can help improve support in motion systems that benefit from a longer bearing.

How does the LM8LUU bearing reduce noise and vibration?

The bearing uses multiple sealed ball circuits to distribute loads more evenly during movement. That design helps reduce friction, support smoother motion, and lower operating noise.

Reviews

What printers are saying

  • LM8LUU (8 x 15 x 45 mm) Linear Bearing
Product image
/
Add to Wishlist Remove from Wishlist

LM8LUU (8 x 15 x 45 mm) Linear Bearing

USD

All orders are shipped from and processed in Canada. Duties, taxes, tariffs, and credit card foreign transaction fees may apply.

In Stock Restocking soon Temporarily Out of Stock
  • Visa
  • Mastercard
  • American Express
  • PayPal
  • Apple Pay
  • Google Pay
  • Shop Pay