Linear Guideway

Your Professional Linear Guideway Manufacturer!

Kunshan Devotec Automation Co., Ltd. was established in 2012, but its origins trace back to an initial investment by the German company WMH HERION in Qingdao, Shandong Province in 2007. Since then, we have accumulated extensive experience in engineering, manufacturing, and quality control. As a specialist in drive technology, Kunshan Devotec Automation focuses on the production of high-precision gear racks, gears, pinions, gearboxes, linear guideways, and other linear transmission components. The company also serves as a partner for several European manufacturers in China, including , Graessner, and Hönger, providing localized sales and after-sales services.

Linear Guideway V Rail Series
A V-type guide rail is a type of linear guide component with a V-shaped groove on its surface, designed to cooperate with V-shaped sliding blocks or rollers for linear motion transmission.
read more
Ball Linear Slide RO Series
RO series linear slide rails, which are four-row single arc-arc contact linear slides, and integrate the optimized structure design of the heavy-duty precision linear slide rails. Compared with...
read more
Low Assembly Ball Linear Slide PO Series
The PO series uses four rows of steel balls to withstand the load design, so that it has high rigidity and high load characteristics. It also has four-direction load characteristics and...
read more
Ball Linear Slides KO Series
KO series linear slide rails, which are four-row single arc-arc contact linear slides, and integrate the optimized structure design of the heavy-duty precision linear slide rails. Compared with...
read more
Miniature Linear Slide GOL/GOU Series
Small size and light weight, especially suitable for use in miniaturized equipment.
Stainless steel linear slides, including sliders, slides and other metal fittings such as steel balls,...
read more
Roller Linear Slide TO Series
The TO series linear slides replace the steel balls with roller-type rolling elements, designed for ultra-high rigidity and heavy-duty load. The rolling elements are in line contact with the slide...
read more
Linear Guideway Flat Rail Series
A square rail, also known as a square linear guide rail, is a type of precision linear motion component characterized by its rectangular or square cross-sectional profile, with guide grooves...
read more
Linear Guideway Flat Rail Heavy-duty Series
A heavy-duty guide rail is a robust linear motion component designed to withstand extremely high loads, harsh operating conditions, and continuous heavy-duty cycles.
read more

Why Choose Us

Our Factory
Our company boasts a factory area of approximately 5,000 square meters, with nearly all production processes performed in-house. This enables us to strictly control product quality and delivery times.

Advanced Equipment
Our company boasts advanced equipment such as machining centers, surface grinders, milling machines, straightening machines, and high-precision rack milling and grinding machines imported from KESEL and HABRAMA in Germany. These machines are among the world's leading. We also have our own heat treatment facilities, equipped with induction hardening, quenching and tempering machines, and case hardening equipment.

High Quality
To ensure consistently high quality standards and DIN 5 and DIN 4 accuracy, we have invested heavily in high-precision inspection and testing equipment, including coordinate measuring machines (CMM), spectrometers, and flaw detectors. As a high-tech enterprise, we are ISO 9001 certified.

RO series linear slide size table

Model	Slide size (mm)						Weight (kg/m)
Model	WR	HR	S	H	P	E	Weight (kg/m)
ROT15A	15	15	M5 x 0.8P	8	60	20	1.48
ROT20A	20	17.5	M6 x 1P	10	60	20	2.29
ROT25A	23	22	M6 x 1P	12	60	20	3.35
ROT30A	28	26	M8 x 1.25P	15	80	20	4.67
ROT35A	34	29	M8x1.25P	17	80	20	6.51
ROT45A	45	38	M12 x 1.75P	24	105	22.5	10.87
ROT55A	53	44	M14 x 2P	24	120	30	15.67
ROT65A	63	53	M20 x 2.5P	30	150	35	21.73

Advantages of Linear Guideway

High positioning accuracy and high repeatability

Because linear guideway utilize rolling motion with a low-friction coefficient. This means that “stick/slip” will not occur during submicron feeding, so users can count on high levels of positioning accuracy over and over again.

Low-frictional resistance

The frictional resistance of a linear guideway is minimal when it is presented in a slide guide. Additionally, with a properly designed linear guideway, lubrication can be easily supplied through the grease nipple on the carriage or by using a centralized oil pumping system, further decreasing frictional resistance and maintaining accuracy for long periods.

High rigidity and high strength

With an optimal four-way load design, linear guideway is capable of bearing loads in all four directions: radial, reversed radial, and two lateral directions. Furthermore, carriages can be equipped with preloading or joined together to enhance system rigidity.

Suitability for high-speed operation

Due to the low-frictional resistance, the required driving force is low, so high speeds can be accommodated without a lot of power consumption. Additionally, linear guideway is not prone to temperature increases, even during high-speed operation.

Simplified installation

Linear guides offer high precision, even if the mounting surface is machined by milling or grinding, making them simpler to install than conventional slide guides and they are often easily interchangeable for maintenance purposes.

Applications of Linear Guideway

CNC Machines

They provide precise motion control in CNC machining centres, ensuring accurate tool positioning and cutting.

Robotics

They enable smooth and precise movement in robotic arms and automation systems, facilitating tasks such as pick-and-place operations.

Packaging Machinery

Linear rails are used in packaging equipment for precise product handling and packaging processes.

Medical Devices

They are employed in medical equipment such as scanning devices and surgical robots, enabling accurate movement and positioning during procedures.

3D Printers

Linear rails play a crucial role in 3D printers by guiding the movement of print heads or build platforms, ensuring precise layer-by-layer deposition of materials.

Components of Linear Guideway

A linear guideway usually consists of three main components:

Guide rail

The guide rail is a straight bar or profiled rail that is fitted along the desired direction of movement. It has a precisely ground or rolled surface on which the moving element of the guide is supported.

Carriage

The carriage is the moving element of the linear guideway. It is equipped with bearings that slide on the guide rail. The carriage can have a plain bearing or a roller bearing to ensure low-friction movement.

Drive system

The drive system is responsible for moving the carriage along the guide rail. It can take various forms, such as an electric motor with toothed belt or ball screw drive, a pneumatic or hydraulic device or even manual operation.

Types of Linear Guideway

Profile Rail Guides
Profile rail guides are made of precision-ground rails and ball-bearing or roller-bearing carriages. They are the actuators for applications requiring high-stiffness, precision and substantial weight capability.

Ball Bearing Linear Guides
This model is mainly used in high-speed machining centres, aerospace systems and robotics fields.Ball bearings linear guides are commonly used in various industries due to their versatility. These ball guides fit those searching for exact guides with smooth, low-friction motion.

Roller Bearing Linear Guides
Roller bearings are often used for heavy-duty applications and higher weight capacities, as they possess more weight capacities than ball-bearing guides. Large machine tools, automation equipment and material handling systems are some industries where this model can be utilised.

Needle Roller Linear Guides
Needle roller linear guides offer a compact design and high radial load capacity, allowing them to be used in limited spaces. Their slender design makes them an ideal solution for small linear stages, positioning tables, and precision instruments.

Slide Linear Guides
Similar to Needle Roller Guides, Slide Guides are often utilised where space is finite and the environment calls for high precision. There are various applications for these compact miniature guides, including electronic equipment, optical instruments and small-scale positioning systems.

Packaging and Shipping

1) Inner packing: rust-preventive oil application,vacuum packaging bag

2) Outer packing: wooden case or pallet

3) Customized packing is also available

4) Production Lead Time: 15-35 days after approved

Our certificates

FAQ

Q: How long is your delivery time?

A: If the item is in stock, it's usually 5-10 days. If the item is not in stock, it's 15-20 days, depending on the quantity.

Q: Do you provide samples? Are they free or additional?

A: Yes, we can provide free samples, but we don't cover the shipping costs.

Q: What are linear guideways?

A: A linear guide is a machine element that utilizes bearings, which were developed for rotary motion, in order to move heavy objects easily in a straight line.

Q: How do you install a linear guide rail?

A: Bolt on the rail at the both ends lightly, and position a straightedge beside it. Set the straightedge parallel to the rail measuring distance A1 and A2 by a dial indicator. Using the straightedge as the reference, with a dial indicator, check parallelism with the rail, and adjust the rail. Then tighten the bolts.

Q: Are linear guide rails noisy?

A: Linear guide rails and bearings are essential components in various mechanical systems, facilitating smooth and precise motion. However, they can often generate noise during operation, which can be a significant concern in many applications, especially in environments where noise levels need to be minimized.

Q: What is the best type of linear rail?

A: Linear ball rail systems offer higher precision, impressive load capacity, and superior flexibility compared to bushing-based designs. The raceways are typically mounted directly onto a machine base or frame, making proper alignment essential for optimal performance.

Q: What is the load capacity of a linear rail?

A: The dynamic load capacity of the bearing within the linear guide rail is a measure of the bearing's ability to endure repeated stress and strain during operation without failing prematurely. Fundamentally the dynamic load capacity tells you how much payload you can carry for a certain lifespan or distance.

Q: What are the parts of a linear rail?

A: A linear rail's main components are the carriage, bearings, and guide rails. The system can also include drive units, sensors, controllers, lubrication systems, and additional components, depending on the application.

Q: How to clean a linear rail carriage?

A: Disassemble and remove anything attached to the carriage of the rail you wish to clean. Move the carriage to one end of the linear rail. Apply a small amount of 99% isopropyl alcohol to a lint-free paper towel. Wipe down the length of the rail with the paper towel, ensuring that you grip the sides of the rail tightly.

As one of the leading linear guideway manufacturers and suppliers in China, we warmly welcome you to buy high quality linear guideway for sale here from our factory. For customized service, contact us now.