Guia Linear

Linear guides (linear guide rails and blocks) are key motion components that support and guide the moving parts of CNC machines in a straight line. Compared with traditional round shafts or slide ways, linear guides provide:

EGR Linear Guide

EGR Linear Guide is a precision linear motion component designed with a self-lubricating structure to achieve low friction, smooth movement, and reduced maintenance. By using ball rolling motion and a special lubrication layer, it effectively lowers energy loss while ensuring stable and quiet operation.

With high rigidity, strong wear resistance, and reliable performance under continuous operation, EGR linear guides are suitable for CNC machines, automation equipment, medical devices, and precision instruments that require high accuracy and long service life.

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TBR Support Rail

SBR linear guide rails are essential linear motion components used in CNC machining parts and automatic systems to support and guide moving assemblies along a stable straight path. Compared with traditional unsupported shafts or simple slide structures, SBR linear guide rails provide higher running stability, improved accuracy, and more reliable performance for continuous linear motion applications.

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SBR Support Rail

SBR linear guide systems (supported linear rails and shafts) are essential linear motion components designed to support and guide mechanical assemblies in stable, long-stroke straight-line movement. Compared with traditional unsupported round shafts or slide structures, SBR linear guides provide higher load capacity, improved rigidity, and more reliable performance in heavy-duty and long-span applications.

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Guia linear miniatura MGR

As guias lineares miniatura MGR são componentes de movimento linear compactos concebidos para guiar peças móveis com elevada precisão e estabilidade em equipamentos automatizados. Em comparação com os métodos de guiamento convencionais, tais como veios redondos ou mecanismos de deslizamento simples, as guias lineares miniatura MGR combinam um design que poupa espaço com elevada rigidez, forte capacidade de carga, baixo ruído e desempenho fiável a longo prazo, tornando-as adequadas para aplicações de precisão.

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Linear Shaft Rod

Linear shaft rods are linear motion components used with sliding bearings to guide straight-line movement, offering a simple structure, precise diameter and surface control, high durability from heat treatment, and low maintenance compared with conventional guiding solutions.

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Guia Linear HGR

HGR linear guide are precision linear motion components designed to provide smooth, accurate, and reliable movement under high loads, featuring high interchangeability, durable steel construction, and long service life for CNC and industrial applications.

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Linear Guide Rails & Blocks for CNC Machines

What Is a Linear Guide?

Stable Quality & Accurate Dimensions
Smoother motion with low friction
Better positioning accuracy and repeatability

Why Choose Longqiao Linear Guides?

Full Series Coverage

From standard HGR rails for CNC routers and laser machines to miniature MGR guides and SBR / TBR support rails, you can find matching models for different machine structures.
Stable Quality & Accurate Dimensions

Rails and blocks are processed and measured carefully to ensure good straightness, smooth motion and interchangeability between blocks and rails of the same series.
Practical Options for Different Budgets

We can provide higher-precision guides for demanding applications, and also cost-effective supported rails for economic CNC machines or DIY projects.
Fast Delivery from Stock

Many common sizes and lengths are kept in our warehouse, allowing quick shipment for urgent machine orders or maintenance needs.
One-Stop Matching with Other CNC Parts

We not only sell linear guides, but also ball screws, motors, drivers and spindle motors, so you can build complete axes from one supplier.

Linear Guide Rails & Blocks for CNC Machines

When the block moves along the rail:

A linear guide consists of a rail and one or more blocks (carriages). Inside each block, rows of steel balls or rollers circulate along precision-ground raceways.

The rolling elements carry the load between rail and block, greatly reducing friction compared with sliding contact.
The rectangular rail shape and multiple contact points provide high rigidity in all directions.

Applications

Applications of Linear Guides Longqiao linear guides are used in many types of equipment, for example:

By combining different series of rails and blocks, we can help you choose suitable linear guides for both new machines and retrofit projects.

FAQ About Linear Guides

How do I choose the right linear guide size for my CNC machine?

You need to consider load, stroke length, installation space, required speed and accuracy. If you tell us your machine type (e.g. woodworking CNC router, laser cutter) and axis length, we can recommend suitable rail size and block number.
What is the difference between HGR square rails and SBR/TBR support rails?

HGR square rails with blocks provide higher rigidity, precision and load capacity, suitable for most industrial CNC machines. SBR/TBR supported round rails are more economical and easier to install, often used in light-duty or entry-level equipment.
Do linear guides need regular lubrication?

Yes. Proper lubrication reduces wear and noise and extends service life. You can use grease through the lubrication holes on the block or apply oil to the rail surface at regular intervals depending on working hours and environment.
Can I replace only the blocks and keep the existing rails?

In many cases, blocks of the same series and size are interchangeable with existing rails, as long as the rail is not damaged. Please provide your current model or dimensions and we will check compatibility.
How long can linear guides last?

Service life depends on load, speed, environment, lubrication and installation quality. Under normal working conditions with proper lubrication and protection against dust, linear guides can run for many years in CNC applications.