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What factors affect the service life of linear guides?

What factors affect the service life of linear guides?

The lifespan of a linear guide is related to the following factors: • Load: The load capacity of the linear guide directly affects its lifespan. Exceeding the design load capacity will cause premature wear of the guide. • Lubrication: Regular lubrication can reduce friction and wear. Insufficient lubrication or the use of improper lubricants will shorten the lifespan of the guide. • Installation: Installation quality affects the lifespan of the guide. Improper installation can lead to problems such as uneven guide surfaces. • Operating Environment: High temperatures, humidity, corrosive gases, etc., will accelerate the wear of the guide and the fit of the guide slider. • Material: Different materials have different wear resistance, strength, and corrosion resistance. Choosing the right material can extend the lifespan of the guide. For example, different brands of linear guides, such as THK and Koyo, use different processes and materials, which will also have an impact. • Usage: Excessive use, frequent starts and stops, and improper use will all increase the wear of the guide. In addition, the hardness coefficient, temperature coefficient, and load coefficient will also affect the lifespan of the linear guide.

07

2024

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12

In what industries are guide clamps used?

In what industries are guide clamps used?

06

2024

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12

Introduction to Kate Precision Machinery Company

Introduction to Kate Precision Machinery Company

Kate Precision Machinery, established in 1993, is a national high-tech enterprise integrating the independent research and development, production, and service of rolling functional components. It is currently a standing director unit of the China Machine Tool Industry Association and vice chairman unit of the Rolling Functional Components Branch of the China Machine Tool Industry Association. Kate Precision Machinery has passed ISO9001 International Quality Management System Certification*, ISO45001 Occupational Health and Safety Management System Certification*, and ISO14001 Environmental Management System Certification*. Its metal division has passed ISO13485 Medical Device Management System Certification*. It has successively won the titles of "Guangdong Provincial High-tech Enterprise", "Guangdong Provincial Specialized, Refined, and Special Small and Medium-sized Enterprise", "Top Ten Enterprises in Careful Brand Creation", "Top Ten Enterprises in Independent Innovation", "Star Enterprise of Small and Medium-sized Enterprises in the Revitalization of Equipment Manufacturing Industry", "Specialized, Refined, and Special "Little Giant" Enterprise", and national-level key "Little Giant" enterprise. Relying on a highly professional R&D team, high-quality products, and high-efficiency production lines, Kate Precision Machinery continues to expand the breadth of innovation and explore the depth of technology, cultivating the rolling functional components industry. It has obtained 45 patent authorizations* and presided over or participated in the drafting and release of 22 industry standards*. After years of independent research, Kate Precision Machinery has successfully developed and put into production rolling linear guideways and their key functional components, ball screw pairs, linear modules, and other products. These products are widely used in CNC machine tools, equipment manufacturing, photovoltaics, lithium batteries, semiconductors, automotive industry, flat panel displays, industrial automation, electronic information, medical machinery, aerospace, and other fields. Since its establishment, Kate Precision Machinery has won numerous honors: it has been listed as a "National Torch Plan Project" by the State Science and Technology Commission, selected as a "National Key New Product", and won the "First Prize of China Machinery Industry Science and Technology Award". It has been awarded "Top Ten User Satisfaction Brands", "Top Ten Product Quality", "Top Ten Independent Innovation", and "Chunyan Award" by the China Machine Tool Industry Association. Simultaneously, in the comprehensive evaluation organized by the Ministry of Industry and Information Technology, the performance of Kate's products in many aspects surpasses that of benchmark enterprises, receiving widespread recognition from the state, the industry, and customers. Kate Precision Machinery has a group of experts and scientific and technological personnel who have been engaged in the research of rolling functional components for a long time. It has been certified by the Guangdong Provincial Department of Science and Technology as the "Guangdong Provincial Precision Guideway Engineering Technology Research Center" and the "Guangdong Provincial Rolling Functional Components Engineering Technology Research Center". Kate Precision Machinery aims to become a leading enterprise in China's rolling functional components industry and is committed to revitalizing the national industry. Looking to the future, Kate Precision Machinery will continue to be bold and innovative, creating a well-known Chinese brand with high-end positioning to promote the development of the rolling functional components industry.

04

2024

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12

What are the differences between Kate and THK's guide rails?

What are the differences between Kate and THK's guide rails?

What are the main differences in brand and features between THK and Kate guides?

26

2024

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11

The importance of water separation for THK linear guides

The importance of water separation for THK linear guides

The importance of THK linear guides in water separation. When using THK linear guides, they often come into direct contact with water, such as in machining centers and lathes. During use, water often splashes onto the THK linear guides. If the water separation performance of the THK guide lubricant is not good, it will be directly decomposed by water, and the oil will drip into the cutting fluid, thus seriously polluting the cutting fluid. Therefore, the water separation performance of the THK linear guide is very important. Many precision machine tools are more convenient to use, so the linear THK guide and the hydraulic system will use the same oil. In fact, the editor suggests that it is best to use a dual-purpose oil for hydraulic actuators. If hydraulic oil is used alone, it will result in poor wear resistance, leading to serious wear of the linear guide or being directly washed away by water. However, if only THK guide lubricant is used, it may cause excessive oil sludge in the hydraulic system, resulting in pressure failure to meet the requirements. Most machinery prefers to use a centralized lubrication method to lubricate THK guides. In fact, THK guide oil and extreme pressure grease are directly installed in the same transparent container, and the machine will automatically replenish it wherever it is. For this oil, the grease used in THK linear guides is unrecoverable in terms of wear, and many guides are basically directly exposed to the outside and cannot be recovered or recycled. Micromotion wear is the appearance of pitting on the same channel. The spacing between them is mainly based on the entire diameter of the steel ball, mainly due to the lack of oil film, and during shorter forming and operation, vibration will accelerate and eventually be oxidized.

22

2023

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08

THK Japan imported genuine linear guide slide SRG45LR2SSCOE+2100LP-II arrived today

THK Japan imported genuine linear guide slide SRG45LR2SSCOE+2100LP-II arrived today

28

2022

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09

THK Japan imported genuine linear guide slide block SRG65C in stock

THK Japan imported genuine linear guide slide block SRG65C in stock

22

2022

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09

Dalian Kate HTPM manufacturer introduces the service life of Kate Precision HTPM linear guide.

Dalian Kate HTPM manufacturer introduces the service life of Kate Precision HTPM linear guide.

The lifespan of a linear guide is defined as the total running distance until surface peeling occurs on the raceway surface and steel balls due to material fatigue. Under the same working conditions, a batch of guide components with the same structure and size are run separately. Before 90% of the guide components show fatigue damage, the sum of the distances the slider moves relative to the guide or the number of working hours at a certain speed. The lifespan of linear guides has a large degree of dispersion. Even products from the same batch, used under the same motion state, will have different lifespans. Therefore, when selecting linear guides, we can estimate their lifespan based on the basic dynamic rated load and working load. (1) Hardness coefficient (fh) In actual guide systems, in order to fully utilize the rolling linear guide, the hardness of the raceway surface in contact with the steel balls should be between HRC58～64. If the hardness of the raceway surface is low, the rated dynamic load will decrease, and the rated lifespan of the guide will decrease. Therefore, the rated dynamic load and rated static load of the guide should be multiplied by the hardness coefficient fH. The following figure shows the hardness coefficient fH corresponding to different raceway surface hardnesses. (2) Temperature coefficient (ft) When the temperature of the guide system exceeds 100℃, compared with use at normal temperature, the rated dynamic load decreases, and the rated lifespan is shortened. Therefore, the rated dynamic load and rated static load of the guide should be multiplied by the temperature coefficient fT. The following figure shows the temperature coefficient fT corresponding to different temperatures. (3) Load coefficient (fw) When calculating the rated lifespan, the influence of external loads and usage conditions should also be considered, including changes in the weight of the object and inertial forces caused by the speed of movement. For this reason, a load coefficient fW is introduced. The value of fW varies under different usage conditions.

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2022

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