35mm linear rail

Types of 35mm linear rails

A linear rail guide provides a way for moving parts to slide smoothly in a straight line. They are most often used with linear motion systems. Usually, these rails are used alongside matching linear slide rails. The 35mm linear rail guide is part of a set of components that help machine parts move in one direction.

Linear rails are made in a variety of configurations to suit different needs. Here are some common types of linear rails:

• Guideway with GCr15 bearing steel

  GCr15 bearing steel is a common special steel. GCr15 bearing steel linear rails and guides possess high rigidity, high running accuracy, and high load-carrying capacity.

• Carbon steel guideway and Q235

  This type of linear rail guide adopts carbon steel, Q235, which is a structural steel commonly used for general construction projects.

  Typically, low-grade carbon steel has good weldability and machine properties.

• 304 Stainless steel

  Stainless steel linear guide rails are designed to support motion system applications. For example, they support environment applications where corrosion, chemicals, or cleaning fluids are present, and need to be a clean low particulate solution.

• Aluminum alloy

  LM guides made of aluminum alloy are available for lightweight applications. This type of linear guide has a significantly reduced burden.

• Heavy-duty linear guideways

  Heavy-duty linear guideways are typically for larger loads and harsher environments. They often feature solid, robust sections to enhance rigidity and load-carrying capacity. Heavy-duty linear guideways are usually used in demanding applications such as CNC machinery, large-scale automation equipment, heavy industrial machines, etc.

35mm Linear Rail Specification & Maintenance

• Load Capacity:

  35mm linear rails support different loads, from light to heavy loads, depending on the material and design.

• Length Options:

  35mm linear rails come in various length options ranging from short to long to accommodate different application requirements.

• Material:

  Linear rails are usually made from material with good strength and corrosion resistance, such as alloy steel, stainless steel, etc.

• Lubrication System:

  Linear rails use various lubrication systems, like grease nipples, oil grooves, etc., to ensure smooth movement and reduce wear.

• Accuracy Class:

  35mm linear rails have different precision levels to meet different application requirements, such as C0, C1, C2, etc.

  Usually, C0 is in high precision, C1 is in medium precision, and C2 is in low precision. C0 linear rails are generally used in applications where high accuracy is essential, such as precision machining equipment, while C1 rails may be used in general machine tool applications. Because of their lower accuracy requirements, C2 rails can be used in factories and assembly lines.

Generally speaking, 35-mm linear rail needs to be regularly lubricated and cleaned to ensure its smooth operation, wear resistance, and long service life. The maintenance process is as follows:

• Regular Cleaning:

  Remove dust, dirt, and debris from linear rails. Use a clean rag or soft brush to gently wipe the surface of the rails, ensuring no foreign matter remains on the working surface.

• Lubrication:

  After cleaning, grease or lubricant should be applied to the rails to ensure smooth movement and low friction. Apply the lubricant evenly along the rails with a brush or cloth, then move the slider back and forth along the rails several times to help the lubricant penetrate and coat the working surface.

• Inspection:

  During maintenance, the linear rail can be inspected for signs of damage, wear, or misalignment. If any issues are found, they should be repaired in a timely manner to avoid further damage or affecting the linear rail's performance.

Application scenarios of 35mm linear rails

35mm linear rails have diverse application possibilities since they offer guidance and support for linear motion in different machinery and industries.

• Laser cutting machines: 35mm linear rails are used in the support system of laser cutting machines for guiding and supporting cutting heads for precise linear motion.
• Automotive and assembly lines: in the automotive industry and assembly lines, 35mm linear rails are used in robotic arms for direction and support as the machines/robots perform various tasks like assembly, painting, welding, and picking and placing.
• Conveyor systems: these types of rails offer guidance and support for various components/parts in a conveyor system to enable smooth and straight motion. The components include conveyors belts, slides, and transfer units.
• Industrial printing equipment: 35mm linear rails are mainly used in printing machines to enable the smooth and precise motion of print heads and paper feed mechanisms. This applies to large format printers, inkjet printers, and gravure printers.
• Medical equipment: some medical equipment devices, such as MRI machines, CT Scans, and pet scans, use 35mm linear rails to provide guidance and support for precision motion of imaging sensors and patient beds.
• Packaging machines: in the packaging industry, 35mm rails are used in the machineries' smooth and precise motion systems. This includes diseases such as filling, labeling, and sorting lines. The rails ensure the package handling equipment operates precisely and smoothly.
• Aerospace applications: the aerospace industry uses 35mm linear rail systems for support and guidance for precision machining centers and aserver mechanisms in the assembly of fuselage, wings, and other components.
• Food processing: in the food processing industry, the 35mm linear rails are used in the bed and sorting mechanically system's guidance and support unit. Also, packaging food products with conveyor systems can employ 35mm linear rails for smooth transfer and motion.

How to choose 35mm linear rails

Several factors should be considered when selecting linear rail guides. First, the dimensional accuracy and positioning accuracy of the dimension rail guidance system must be assured. The straightness and flatness of the guide rail must be confirmed, and the amount of rail and carriage play should be minimized. Also, the load-carrying capacity of a linear bearing guide rail carriage, including its static load and dynamic load, must be appropriate for the weight or force of the objects they will move.

It is also crucial to consider the ease of installation. The linear guide rail support system should be mounted with minimal alignment, machining, or assembly requirements. Linear rails and bearings must lock securely and reliably in place once installed.

Think about whether an anti-backlash mechanism is necessary or desired. These mechanisms are more complex than others, but they help to eliminate play between the rail and bearing.

Finally, a linear guide rail system's environmental suitability and service life must be considered. Factors such as dirt, moisture levels, temperature, fumes, gasses, vibrations, and static and dynamic loads must be evaluated and accounted for when choosing linear guides and their materials to ensure their long-term usability and compatibility.

35mm linear rail Q & A

Q1: What are 35 mm linear rails made of?

A1: Linear rails are made of material combinations that are suited to their applications. For example, aluminum alloy creates a lightweight rail ideal for 3D printers. Steel makes a sturdy 35 mm linear rail suited to machine tools and robotics.

Q2: What is the support type used in linear rails?

A2: Linear rails commonly use block supports. However, pillow supports are also used in applications where the linear rail support cannot be aligned precisely. Another alternative is the flange support, which is used in short linear rails.

Q3: What are linear guides or rails compatible with?

A3: The linear guides or rails are usually compatible with rod-type motors. For example, a common motor coupling design used in CNC machines is an NEMA 23 stepper motor. Other motors include NEMA 17 and NEMA 24.

Q4: How do linear rails work?

A4: A linear rail works by allowing an attached component to move in one direction. This unhindered motion occurs along the rail's path. The component can be a block, carriage, or slider. Linear motion systems usually combine the linear rail with a guide. This combination increases load capacity and creates greater stability.