Lubrication-free bearing material

Lubrication-free bearing material

Looking for free lubrication is extremely low coefficient of friction, but also has high strength and long life of wear-resistant materials in the process, the polymer material has attracted the attention of designers. In the mechanical manufacturing, the most interesting casting polyamide. This material has the advantage of particularly notable, because the addition of lubricant can make it a special sliding bearing materials.

In the design and use of sliding bearings, the friction and wear is the most important criteria for selection of material. In addition, such bearings are usually also consider the maintenance costs. So designers want to design a maintenance without bearings, with little or no maintenance costs. Over the years, a class of polyamide material is to be a popular choice material. Because of this material has the basic features and performance, making the manufacture of sliding bearings using it in the technology sector gained wide recognition.
Polyamide casting itself has many sliding bearing materials must possess properties. It has the impact toughness, low coefficient of friction and wear, good self-lubricating properties and dry running properties and high strength. On the whole, it has the best prerequisites for high-quality materials, and by adding the lubricant mixing can further improve its performance. In this regard, the traditional MoS2 and oil additives, slide bearing but can also be used thermoplastic based reactive solid lubricants and other lubricating additives. In the new product on the use of the latter. Mixed with the lubricant of these mix, sliding friction (sliding friction pairs) may, in its entire lifetime without maintenance, and no additional lubrication, even under normal conditions, even the installation of lubrication can also be no longer needed.
Lubricating effect of the active layer occurs immediately
Lubricant contained in the materials formed at the beginning stage of activity of a lubricating wear layer. The wear layer is passed to the match, usually a metal sliding surface, and because of its roughness and adhesion to the metal surface. Where it assumed the lubricant is usually supplied by an external task, but also filled the recesses of the rough metal surface. On the one hand, this further reduces the surface fill the wear and bearing wear, so to maintain lubrication; the other hand, the sliding surface in the contact pair to form a layer of plastic surface layer, thereby forming a from the perspective of a favorable bearing plastic / plastic material matching. It is clear that the lubricant materials, one of the greatest advantages. The traditional use of oil or grease lubrication, the lubricating film formed at the beginning of operation only. The active layer of lubricating material to form after starting the campaign full effect immediately. This would reduce the traditional lubrication methods and began operations in the starting stages of a very high degree of wear occurs. Another advantage is that the solid lubricant is used in delicate, evenly distributed throughout the material. Usually due to the movement of bearing journal in the overflow from the lubricant is separated from the material soon replaced by the lubricant. Matrix material and the lubricant completely uniform dispersion and blending operation to ensure the lubrication from the beginning to the last hour can be uniformly and stably maintained.
Material properties and the use of field
By adding the lubricant and the composition of a focus on the sliding performance of precise and careful selection, and the material of the sliding friction coefficient of 0.15μ a particularly low value. In this way, and no additives PA 6G or add oil Oilamid material compared to the friction and wear properties are much better. In addition, a negative tendency to stick-slip effects are reduced to a minimum.
Additives and lubricants evenly distributed in the material to self-lubricating effect and sliding performance can be sustained throughout life and even during the period remained steady. In addition, basic materials, PA 6G has excellent wear resistance, and has good machinability. So far all of the cast polyamide with standard manufacturing requirements of high sliding and wear resistance of components can now be used Lubramid material. This allows a longer life, less wear and lower costs.
Versatile material
If the lubrication of some parts is very difficult, impossible or not satisfactory, then has a good overall performance Lubramid is the most suitable material. If you want to achieve the PE 1000's sliding performance, and requires a good wear resistance and high mechanical strength, then Lubramid also the most suitable material. The main application areas are machinery and equipment manufacturing, automotive manufacturing and the crane driver and transportation technology. This material can be used as the base material for the manufacture of bearing bushes, cam guide device, sliding and guide plate, pulley, gear or sprocket. In the other needs a good performance sliding and friction applications, this material is an alternative material.