Wishlist
The products are limited
The products are limited
Linear motions have the advantages of low friction and high stability. They are used in almost all machinery and are a commonly used component. Linear motions are divided into two series, namely LM linear bearings and LME linear bearing series. Its code name, LM series, is used in Asia, Southeast Asian countries, Japan, South Korea, China, etc. LME linear bearing series are mostly used in Europe, the United States, Germany, Italy and other regions. The structural characteristics of the two series are roughly the same except for different sizes and hole diameter tolerances. There are countless brands of linear motions, and it is often difficult to choose when purchasing. Today, we will take stock of the characteristics of the world's top ten linear motion brands. Understanding these brands will help you make targeted choices.
THK brand was the first company to develop and commercialize linear motion (LM) guides for the world in 1972. Using THK brand linear motion systems can quickly improve the accuracy and speed of advanced electromechanical instruments, thereby saving manpower investment.
Since the bearing ball is in point contact with the shaft, the operating load is small. The steel ball rotates with minimal frictional resistance, resulting in a smooth motion with high precision. THK is the leading brand in the linear bearing industry. The price is relatively high, but the quality of linear bearings is top-notch.
THK linear bearings are used in conjunction with linear drive shafts. Because the load ball and the transmission shaft are in point contact, the allowable load is small, but during linear motion, the friction resistance is minimal, the precision is high, and the movement is fast. THK LM guides enable ultra-high-precision operation of machine tools and industrial robots and enable semiconductor manufacturing equipment to operate within submicron devices. Therefore, THK linear bearings are more and more widely used in general or special machinery industries such as electronics, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, machinery, instruments, robots, tool machinery, CNC machine tools, automobiles, etc. Recently, the system has also been used in LCD production lines, railway coaches, assistive vehicles for disabled people, medical equipment, skyscrapers and residences, and entertainment facilities. The scope of use of LM rolling guides has broken through previous limitations.
HIWIN linear bearing guide is a rolling guide. By using steel balls to perform an infinite rolling cycle between the slide block and the slide rail, the load platform can easily move linearly with high precision along the slide rail. Compared with the traditional sliding guide, the friction coefficient of the rolling guide can be reduced to 1/50 of the original. Since the starting friction is greatly reduced, there is less invalid movement, so μm-level feed and positioning can be easily achieved. Coupled with the design of the binding unit between the slide block and the slide rail, the linear slide rail can simultaneously bear loads from up, down, left, and right directions. The above display characteristics are not comparable to traditional sliding guides. Therefore, if the machine can be equipped with ball screws, using linear slide rails as guides will greatly improve equipment accuracy and mechanical efficiency.
HG series: grinding machines, milling machines, lathes, drilling machines, comprehensive processing machines, electrical discharge machines, boring machines, wire cutting machines, measuring instruments, woodworking machines, handling machines, and transportation devices.
EG series: industrial automation machines, semiconductor machinery, laser engraving machines, packaging machines.
MGN/MGW series: printers, robot arms, electronic instruments and equipment, semiconductor equipment.
RG series: CNC processing machines, heavy chip processing machines, CNC grinders, injection moulding machines, electrical discharge machines, wire cutting machines, and large gantry machine tools.
IKO Bearing is a Japanese professional bearing manufacturer with a history of more than 50 years and is famous for the production of linear guides. Its products include linear guides, linear sliders, ball screws, couplings, etc., which are widely used in automated machinery, robots, machine tools and other fields.
IKO linear bearings have a self-lubricating function. The lubricating oil in the self-lubricating tube maintains lubrication performance for a long time. Even if the original lubricating oil in the tube has been exhausted, its capillary lubrication body can continue to provide lubricating oil, making the linear bearing maintenance-free (5 years or more 20000km). Self-lubricating linear bearings can achieve lubrication effects even under long-term use.
Because the work of the guide rail system involves the simultaneous work of several components, the basic components are a moving component and a fixed component. There are various forms of moving elements, which will be introduced in detail later. The fixed elements are generally rail-type, which guarantees the accuracy of the linear guide. If the linear guide is bent and deformed, the moving elements or sliding elements will lose their precise guidance.
Taiwan PMI linear sliders have high positioning accuracy and good reproducibility. Their models are divided into several commonly used types:
heavy-duty all-steel ball-type
low-assembly all-steel ball type
micro-miniature all-steel ball-type
heavy-duty all-roller type
It also includes chain-type silent slider guide rails, etc. The appropriate size and type can be selected according to needs. It is widely used and has reliable quality. It is a mid-to-high-end guide rail brand.
1. The automatic alignment capability of the Taiwan PMI linear guide comes from the DF combination of arc grooves. During installation, through the elastic deformation of steel balls and the transfer of contact points, even if the installation surface slightly deviates, It can also be absorbed by the inside of the slide rail to produce automatic centring capability, resulting in high-precision, stable and smooth motion.
2. Interchangeability - due to strict control over manufacturing accuracy, the dimensions of the linear guide rails can be maintained within a certain level, and the slider is designed with a retainer to prevent the steel balls from falling off, so some series of accuracy are interchangeable, customers can order guide rails or sliders as needed, or store guide rails and sliders separately to reduce storage space.
3. High rigidity in all directions - using four rows of arc grooves and a 45° contact angle with four rows of steel balls, the steel balls achieve an ideal two-point contact structure and can withstand loads from up and down and left and right directions; when necessary Preload can be applied to improve rigidity.
PMI linear guides are mainly used in automated machinery, such as machine tools imported from Germany, paper bowl machines, laser welding machines, etc. Of course, linear motions and linear guides are mainly used in mechanical structures that require relatively high precision. There is no intermediate medium between the moving element and the fixed element of the guide rail, but rolling steel balls. Because rolling steel balls are adapted to high-speed motion and have small friction coefficients and high sensitivity, they meet the working requirements of moving parts, such as tool holders of machine tools, machining editing and analysis carriages, etc.
The German Rexroth Company and the former Bosch Automation Technology Department merged to form the Bosch Rexroth Company in 2001. It is wholly owned by the Bosch Group, providing electronic transmission and control, linear transmission and assembly technology, hydraulic transmission services and walking services. Transmission and control solutions for mechanical hydraulics.
German Rexroth linear blocks are widely used in CNC machine tools. Compared with ordinary sliding guide rails, it has the following advantages:
1. High positioning accuracy. The linear rolling guide can reduce the friction coefficient to 1/50 of that of the sliding guide. Since the difference between dynamic friction and static friction coefficients is very small, the movement is flexible, and the driving torque can be reduced by 90%. Therefore, the positioning accuracy of the machine tool can be set to the ultra-micron level.
2. Reduce the cost of machine tools and significantly save electricity. Machine tools using linear rolling guides have small friction resistance and are especially suitable for repeated starting and stopping reciprocating motions. The required power source and power transmission mechanism can be miniaturized, and the weight can be reduced. It reduces the power required by the machine tool by 90% and has a significant energy-saving effect.
3. It can increase the movement speed of machine tools. Due to its small friction resistance, linear rolling guides generate less heat and can achieve high-speed movement of machine tools and improve the working efficiency of machine tools by 20 to 30%.
4. The high precision of machine tools can be maintained for a long time.
Since NSK produced bearings in 1916, it has gradually formed unique bearing precision processing technology. NSK linear bearings are made of pure materials and high product precision. They are used in different environments and machinery. With more than 80 years of experience in bearing production, NSK improves existing products, researches and develops new products, and always maintains a leading edge in technology. With the widespread application of CNC machine tools and machining centres, industrial machinery has entered a new stage of mechatronics. This technological progress is inseparable from NSK-bearing products represented by ball screws and linear guides. Its high-precision positioning technology is particularly useful in cutting-edge fields such as semiconductor manufacturing equipment and industrial robots.
* Able to withstand combined radial and thrust loads;
* Compact structural design, lightweight, reduced axial size;
* High precision, high speed, low wear and extended service life;
* Small friction resistance, low power consumption, high mechanical efficiency and easy starting;
* Standardized dimensions, easy interchangeability, simplified installation and disassembly process, and convenient maintenance;
* Bearing performance is relatively insensitive to fluctuations in load, speed and operating speed;
* Its unique design ensures excellent performance across load and speed ranges.
NSK linear bearings play an important role in many application fields. Whether it is precision instruments such as electronic equipment, tensile testing machines, digital three-dimensional coordinate measuring equipment, or sliding parts of industrial machinery such as multi-axis machine tools, punch machines, tool grinders, automatic gas cutting machines, printers, card sorters, food packaging machines, etc. You can see it everywhere.
MISUMI has more than 20 million products and 80 part configurations worldwide for automation, stamping dies, and plastic mould applications. Linear bearings are just a small part of the many products.
MISUMI linear bearing is a bearing designed to provide free movement in one direction. They are highly accurate and very tolerant of misalignment. MISUMI linear guides are ruggedly constructed and can be precisely configured to suit a variety of needs, including length, height, load rating and threaded hole machining. Linear guides utilize steel balls rolling on precisely ground raceways. The steel balls are recirculated through a return cover to reduce friction and sliding.
* Interchangeable type where slider and rail are sold separately
* Various styles of miniature linear rails designed for lighter loads
* Medium and heavy-duty types, including extra-heavy loads
* Low-temperature treated black chrome plating type, a corrosion-resistant, durable surface treatment that is not prone to cracking and damage.
MISUMI can save you time and improve efficiency throughout the entire product life cycle, from design to construction and ongoing maintenance.
TBI was established in 1986 as a professional manufacturer of transmission components. TBI MOTION masters core technologies and focuses on innovative R&D and design. It has multiple product design patents and has passed ISO9001, ISO14001, and ISO45001 certifications. Since its establishment, it has been distributed in China, the United States, the United Kingdom, France, etc., and its quality and delivery time are guaranteed. It has been widely recognized by customers from all over the world.
TBI MOTION has a complete product line. Its main products include ball screws, linear slide rails, ball splines, rotary ball screws/splines, single-axis robots, linear bearings, couplings, screw supports, etc. The product has a very wide range of applications. It is often used in the following industries: automation industry, semiconductor industry, industrial-grade machinery, medical-grade industry, green energy industry, machine tool machinery, robot industry, automatic warehousing systems and other related industries.
Common models are as follows: SFNH/SFH Series Ball screw, SFNI/SFI Series Ball Screw, TRH/TRS/TRC Series Linear motions, SLF008 SOF013, etc.
South Korea's SAMICK precision linear bearing is a low-cost linear motion system for use with unlimited strokes and cylindrical shafts.
1. Straight cylinder type (shaped like a cylinder, generally installed with a circlip, used for occasions with small installation dimensions)
2. Flange type (there is a mounting flange at the end or in the middle, which can be installed with screws. The flange is generally divided into three types: round, square and trimmed)
3. Open type (shape is like a straight tube, with axial slits on the outside. It is used when gap adjustment is required. It is divided into two types: large opening and small opening)
1. Since the flow contact can minimize the starting friction resistance and dynamic friction resistance, energy can be saved, and higher movement speed can be easily obtained.
2. When the load increases, the friction coefficient does not change sensitively. Therefore, under heavy load, the friction coefficient is extremely small, and the accuracy remains unchanged for a long time, which can extend the service life of the machine.
3. Linear motion bearings have good interchangeability, are easy to install and use, save time, and make the mechanical structure small and lightweight.
4. Save oiling procedures and achieve the purpose of simplifying lubrication and maintenance. Linear motions are all electroplated to prevent rust.
5. Bearings with additional oil seals on both sides are also suitable for places with much dust or where foreign matter is easy to invade.
Round flange type LMF6UU LMF80UU (extended type LMF6LUU LMF60LUU)
Square flange type LMK6UULMK80UU (extended type LMK6LUULMK60LUU)
Oval flange LMK6UU-LMK40UU (extended type LMK6LUU-LMK40LUU)
INA linear bearings are one of the German bearing brands, enjoying an excellent reputation and high trust. As one of the leaders in the bearing industry, INA linear bearings are widely used in different fields and industries with their excellent quality and reliability. In the modern industrial automation industry, INA linear bearings play a key role. They are widely used in various mechanical and textile equipment, shipbuilding, and petroleum and electric power fields. Moreover, many experimental equipment used in university laboratories and scientific research institutes are also inseparable from these high-quality products. Whether in terms of positioning accuracy, operational stability or long service life, INA linear bearings meet the needs of industrial control automation systems.
1. High load capacity: INA linear bearings can withstand large radial and thrust loads to ensure stable system operation;
2. High precision: After rigorous testing and calibration, INA linear bearings have excellent positioning accuracy and smoothness;
3. Low friction coefficient: INA linear bearings use high-quality materials and unique designs to achieve lower friction, thereby improving efficiency
4. Super long life: INA linear bearings use wear-resistant materials and are optimized for design, so they have a long service life.
INA linear bearings are widely used in but not limited to the following industries: all aspects of the automobile manufacturing production line, rail transit, food processing and pharmaceutical equipment, environmental testing equipment, etc.
Linear bearings are ideal for transmitting motion. Each linear bearing has design features that make it particularly suitable for a specific linear arrangement. In general, the principles for selecting a rail system can only be reduced to one point, as you need to consider more and more factors and weigh the pros and cons. In addition to load, acceleration, speed, and stroke, factors such as temperature, lubrication, vibration, installation, and maintenance also need to be considered. Shandong TFL Bearing is a professional bearing company that represents the sales of these brands. If you have any questions about linear motion bearings, please do not hesitate to contact us. We will give professional advice and quality services.
