LM12LUU 12mm Bushing Longer Linear Ball Bearing

(1 customer review)

Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 293527
  1. Model: LM8LUU
  2. Ball Circuit: 4
  3. Inner Diameter (mm): 12
  4. Outer Diameter (mm): 21
  5. Outer Casing: Chromium Steel
  6. Linear bearing ball cage, hardened coat of both ends ring.
  7. Safe and reliable operation


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Out of stock

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1 Year Warranty
15 Days Warranty
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Category: Bearings
Tags: cnc, 3D Printer Accessories, 3D Printer Parts, Chromium Steel

This LM12LUU 12mm Bushing Longer Linear Ball Bearing is a longer version of our standard LM12LUU linear slide bush for 12mm hardened steel shafts.

The Bearings gives you very precise, safe and reliable linear motion system. Such linear motion bearings are mostly used in 3D printers and CNC(Computer Numerical Control) machines. This Linear Ball Bearing can provide low friction motion along a single axis, hence find a wide range of applications in DIY and robotics prototyping.

This LM12LUU 12mm Bushing Longer Linear Ball Bearing closed type ball bushing has a 12mm bore and 21 mm outer diameter is suitable for use in a mounted slide unit to carry components.

Balls in the cage loop run along a smooth ball guide surface to ensure low noise even in the high-speed operation.

Since Linear Motion bearings slide along the round shaft, for the reliable and smooth motion the shaft must be lubricated. The quality of the shaft directly influences the quality of linear motion we get. So, using a chrome plated and hardened shaft may serve beneficial.

The linear motion bearings are available in more varieties as below


Features :

  1. Linear bearing ball cage, hardened coat of both ends ring.
  2. Made of carbon chromium bearing steel, safe and reliable.
  3. Ball in the cage loop to run a smooth ball guide surface to ensure stability even if high-speed.

Package Includes :

1 x LM12LUU 12mm Bushing Longer Linear Ball Bearing

Ball Circuits




Length (mm):




Outer Casing

Chromium Steel

Outer Diameter(mm)


Shaft ID(mm)


Weight (g):


Shipping Weight 0.057 kg
Shipping Dimensions 6.5 × 2.5 × 2.5 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 1 review

5.0 overall

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  1. pereira.joey (verified owner)

    Packed well


LM-LUU Dimensional Details

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Country Of Origin: China