From simple structural bolts to bicycle bearings, microGLEIT ensures the predictability and reliability of threaded connections, providing dry film lubricants, sealants and solid film lubricants for the European manufacturing market—all from its Bavarian plant.

As part of the Coventya Group, microGLEIT Spezialschmierstoffe GmbH develops and produces dry film lubricants and sealants for all types of fasteners-pastes, lubricants and greases with microWHITE solid lubricants; solid lubricant films, also known as Anti-friction coatings; and dry alternatives to oil and grease lubrication. "The special lubricants we developed can solve any problems that users may encounter," commented Christian Kaiser, Regional Business Director for Central and Eastern Europe at MacDermid Enthone Industrial Solutions, which recently acquired the Coventya Group. 

The microGLEIT product portfolio also includes "black" products containing molybdenum disulfide, graphite and other special solid lubricants; advanced lubricants for fasteners; high-quality lubricating fluids; special high-temperature resistance and environmental inert resistance based on silicone Grease; and other high-quality special lubricants for spray cans. Special dry lubricants include the DF and DCP series, which are specially developed for the coating of small parts and frames in the electroplating industry.

Wide range of applications

Bearings are one of the most widely used components in various types and complex machines because they can reduce friction between two objects moving together. Due to its inherent design, this friction in rolling bearings is significantly lower than in sliding bearings. In turn, rolling bearings can be subdivided into ball bearings, roller bearings and gear bearings according to the type of their intended application. They need to meet certain structural and performance characteristics based on the functions they must perform in the application. The system they are plugged into.

For example, in ordinary bicycles and their steering heads, bearings are used as a movement link between the front wheel and the rear. Their functions are essential to the riding experience and safety. Even small movements of the handlebars can change the direction of the moving vehicle. Most bicycles use ball bearings, which are a fairly inexpensive type that are easy to assemble and have low friction. In some cases, especially high-end bicycles, higher-quality thrust cylindrical roller bearings are used, which are more resistant to fake frost. Both types require good lubrication, but, especially for roller bearings, the lubricant used can have a significant impact on wear behavior and maintenance intervals.

"In the axial direction, the bearing must be able to'carry' all loads, that is, the weight of the bicycle and the rider. Then all dynamic shocks are transmitted from the front wheel/fork, including any shocks and vibrations. Small oscillating movements and specific high loads Combined, the bearing is susceptible to fretting corrosion and false indentation. This will have a negative impact on the accuracy of the vehicle direction, and may also cause safety problems during riding. In order to avoid this situation, frequent maintenance is required, including necessary Replace the bearings at the time."

microGLEIT stated that its GSV 791 lubricant is very suitable for these applications because it minimizes wear problems. This not only solves the key problems of roller bearings in any bicycle headset, but also solves key problems in applications such as sliding guides, ball joints, and power transmission. "It is a state-of-the-art high-performance white lubricant based on a special soap base containing lithium complex, synthetic oil and synergistic solid lubricant-microWhite," Christian commented.

In order to determine the suitability of this lubricant, the SNR FEB2 test was performed, and its configuration was close to the tribological environment of the steering bearing. In this test, a small oscillating motion was applied to the two ball bearings under high axial load. In other words, the difficult operating conditions of bearings and lubricants are recreated. If the lubricant functions normally in the test, it will also perform the same function in the steering head.

The test results clearly show that the bearings lubricated with microgleit GSV 791 have no wear. The contact area has a very thin tribochemical reaction layer, which protects the bearing from wear and improves smooth operation. The choice to use a high-quality "reference grease" with a white solid lubricant in the test also supports the results. For example, the grease is used in the bearings of wind power stations to prevent false indentation and other caused by vibration or oscillation damage.

"The microGLEIT GSV 791 lubricant is superior to the reference product in all aspects. After the test distance, the amount of wear detected is much lower. The consistency of the grease is also still good, while the reference is completely worn, broken, and shows deep Signs of wear, including red salt particles caused by fretting corrosion." 

Claire joined the magazine in 2012 and developed her industry knowledge through numerous company visits, exhibitions and conferences she participated in in the UK and abroad.

Claire is proud to keep readers up to date with the latest industry news.

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