Best Linear Ball Bearings 2026

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Last Updated - 27.03.2026

Best Choice

01

QWORK

QWORK® Sliding Block, 4 Pieces SBR20UU 20 mm CNC Linear Ball Bearing Block Aluminium Alloy Plummer Block Bearing, Linear Ball Bearing, Movable Ball Sliding Units for 3D Printers, Engraving Machine

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Size - Shank Diameter: 20mm Total size: 1.9" (48mm) x 2"(50mm) x 1.5"(38mm).
Package - Our package includes 4 pieces. SBR20UU Aluminum Slide Block
High quality - With an excellent movement ball, it moves smoothly and low friction. You can use it for a long time.
Compatible - This sliding block is suitable for the 20 mm linear guide rail SBR20
100% Satisfied Service - Enjoy a smooth and frustration-free experience with our 100% satisfied service in one month!

19,99 €
Value for Money

02

Akozon

Akozon Linear Motion Bearing, LM8UU Linear Motion Bearing, 8 mm Linear Motion Ball Bearing Bushing for 8 mm Rod, 3D Printer, CNC Parts

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Use: these are the big ones for small projects with tree/strut from Hobby of 8 mm such as the 3D printer, punching and engraving
Size: the ball bearings have an inner diameter of 8 mm, an outer diameter of 15 mm and a height of 24 mm
Low noise: provides a sleeve safe and reliable for the sleeve running surface and the cage bearing, much more smooth and quiet, that the rings in the plastic belt buckle: ball The cage for a silky smooth surface
Improve efficiency: they are double seal prevents the ingress of impurities and save the lubricant, replace the damaged ball bearings in your devices to improve efficiency and save energy
High quality: these linear motion ball bearings are made of high quality steel with ball bearings for low noise and a long service life.

16,34 €
03

DollaTek

DollaTek 4 x SCS8UU linear motion ball bearings, aluminium alloy, CNC sliding bushing, 34.5 mm slider

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Surface oxidation treatment, beautiful and corrosion resistant. Easy to install, high-precision, fast speed.
Suitable for fast, quiet and high precision equipment, construction machinery and gearboxes.
Model: SC8UU
Linear bearing is widely used on electronic equipment, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, machinery, equipment, robots, tools, machinery, machine tools, automotive and digital three-dimensional coordinate measuring equipment and other precision equipment or special machinery industry
Inner diameter: 8 mm / 0.315 inches, length: 34.5 mm / 1.36

9,99 €
04

Walfront

8 pieces LM6UU linear bearing 6 mm CNC linear motion ball bearing bushing double-sided rubber sealed for 3D printer CNC parts

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

WIDELY USE SLIDE Bushing It comes with a total of 8 CNC rail bushings for different projects. It is a perfect addition to your industrial, commercial or DIY project. They are suitable for small hobby projects with 6mm shank/rod projects, such as 3D printers, engraving machines, CNC and other applications, etc.
SUITABLE SIZE - This linear motion ball bearing has a suitable size for easy installation and replacement. It is designed with a 6mm inner diameter, a 12mm outer diameter, and a 19mm height, which is ideal for 6mm shank/bar projects, such as 3D printer, engraving machine.
Premium Material These linear motion bearings are made of high quality steel for durability and wear resistance for long lasting use. At the same time, the high-quality steel material is made with low noise for a more comfortable environment.
Easy Installation - These linear ball bearings provide better performance during the working process, the ball in the cage loop runs a smooth ball guide surface to ensure low noise even when operated at a high speed speed.
DOUBLE SEALED - These LM6UU bearings are designed with a double rubber seal to protect the bearing from dust, water and foreign matter or possible contaminants, and it holds lubricant for long time use.

8,16 €
05

ZYLARUM

LM16UU Linear Ball Bearing 16 mm x 28 mm Accurate & Low Friction Motion for CNC / 3D Printer / Automation Robust Bearing Steel, 37 mm Width, Set of 2

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile Industrial Application - LM16UU bearings suit 3D printers, CNC machines, and factory automation. Their standard size (ID 16mm, OD 28mm) allows easy integration for consistent motion control in various industrial equipment.
Smooth, high-speed functioning - Experience fast running speeds with low noise and minimal friction. The high bearing exactness ensures smooth linear motion for accurate CNC cuts and consistent 3D prints, enhancing your project quality and efficiency.
Extended Service Life & Cost Savings - These linear bearings offer increased resilience for hard-to-service equipment. They reduce replacement frequency and minimize functional disruptions, providing long-term value for your workshop or factory automation needs.
Accurately Engineered Bearing Steel - LM16UU ball bearings use high-grade steel with special heat treatment for exceptional hardness. This ensures consistent performance in demanding CNC and 3D printer applications, helping avoid costly component failure and machine downtime.
Accurate Low-Friction Motion - This bearing provides consistent, accurate low-friction movement essential for exact instruments. It maintains stable performance in robotic arms and automated systems, ensuring consistent functioning during high-speed use.

8,99 €
06

NutriEss

Linear Motion Ball Bearing Busting High-Quality Stainless Steel LMK6LUU LMK8LUU LMK10LUU for CNC Machines Automation Industry

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[High load capacity] Despite its compact design, the linear guide can hold amazingly high loads. The special ball guide distributes the forces optimally and minimises wear. vivid performance even with intensive use in industrial environments.
Universal use: suitable for CNC machines, electronic devices, sports equipment, medical machines, packaging machines, food industry, printing machines and automation systems. The versatile usability makes this product ideal for industrial applications.
Robust steel construction: made of high-quality stainless steel with chrome coating for maximum wear resistance and durability. Resistant to corrosion and high loads. The special surface treatment ensures a lifetime even under extreme operating conditions.
High precision linear guide: Our linear motion ball bearing socket ensures extremely precise and low-friction movement nk pinpoint of the steel balls with the shaft. Ideal for applications where you need to work with millimetre precision. The low friction allows for sustained smooth movement without loss of performance.
Easy installation: the square flange design allows easy and safe installation on different surfaces. With the stanrdized dimensions, integration into existing systems is possible without any problems. No elaborate adjustment required.

10,64 €
07

ZYLARUM

Linear Motion Ball Bearing Set of 10, Alloy Steel Construction for Abrasion and Environmental Resilience, Low Noise Linear Bearing for Solar Equipment, CNC Machines, Automation

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile Industrial Application - Linear ball bearings are for uses including solar equipment systems, wind electricity generation, and electronic machinery. Their dependable performance suits engineers and technicians across various industrial sectors.
Enhanced Strength & Durability - These alloy steel linear bearings provide higher hardness than common materials, with excellent environmental, corrosive, and oxidation resilience. This robust construction ensures long service life in demanding industrial environments.
Dependable Quality Assurance - Manufactured with uniform hardness and high abrasion resilience, each bearing meets strict standards. Trust these components for critical applications in aerospace and robotics without performance concerns.
Cost-Effective 10-Piece Set - This package includes 10 identical linear bearings for multiple replacement projects. This bulk offering saves time and cost on reordering, streamlining your inventory management.
Accurate Low-Friction Performance - The smooth bearing face and exact dimensional accuracy result in minimal friction. This efficient design delivers consistent, high-performance motion for CNC machine tools and automated equipment, enhancing workflow.

13,09 €
08

REXVTNS

Linear Ball Bearing, GCR15 Steel Flange Bearing, Low Noise & High Performance, Alternative for Gear Box/Instrumentation/Motors, 10 mm - 50 mm Options (D12)

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile Compatibility - Linear bearing fits 12+ equipment types including gear boxes (15-35mm shafts), instrumentation (10-25mm), and household appliances. Temperature-tolerant from -30°C to 120°C.
Thermal Management - Innovative heat dissipation design maintains exterior temperature below 45°C during continuous use. 100% tested for overload protection in motors and transport vehicles.
Quality Assurance - Each bearing undergoes optical measurement for ±0.01mm consistency. Comes with 18-month coverage against production flaws. Alternative for SKF/LM series bearings.
Industrial-Strength Performance - GCR15 bearing steel undergoes 3-stage heat treatment to achieve 62HRC hardness, delivering 2X longer service period than typical carbon steel bearings. Certified for 50,000+ load rotations.
Exceptionally Quiet Function - Linear ball bearing features 30dB low noise design with finely-polished exterior, reducing friction by 60% compared to standard bearings. Ideal for noise-sensitive environments like offices and laboratories.

9,69 €
09

ZYLARUM

V625ZZ V Groove Ball Bearings 5 x 16 x 5 mm | 10 Pieces 90° Pulley Rail Bearings for Linear Motion Systems | High Speed/Heavy Load/CNC Applications

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile 10-Piece Set for Multiple Projects - This pack of 10 V Groove Bearings offers excellent value, allowing you to tackle various DIY, robotics, or industrial automation applications with consistent components.
Proven Consistency for Linear Motion Systems - Engineered for specific linear motion applications, these bearings deliver steady performance, reducing friction and abrasion in your crucial builds.
Heat-Treated for High Performance - Each integral bearing is quenched and heat-treated, then finely ground to achieve elevated hardness and accuracy, capable of withstanding high speeds and heavy loads.
Enhanced Bearing Steel Construction - These V Groove Ball Bearings are crafted from resilient bearing steel, ensuring robust durability and a long service life for demanding projects.
Accurate 0.75mm V Groove Design - The 0.75mm deep V groove rides smoothly on rails or tracks, providing stable and exact linear motion for CNC routers, 3D printers, and sliding doors.

10,19 €
10

KANASI

Round linear bearing, low noise, flange, linear ball bearing for high demand applications (D12)

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[HEAT]: SUITABLE FOR HIGH DEMAND APPLICATIONS, ENSURING SAFETY AND STABILITY WITHOUT OVERHEATING ISSUES.
[GCR15 BEARING STEEL]: MADE FROM GCR15 STEEL WITH HEAT-TREATED PROCESS FOR EXCELLENT HARDNESS AND DURABILITY.
Strong bearing capacity: designed with details for high strength and reliable performance in gear boxes, motors, and more.
Smooth surface: precise fit repair part with and smooth surface for sturdy performance.
Low noise: experience a quiet operation environment with high speed and low friction characteristics.

14,29 €