The Schaeffler Group's INA and FAG brands stand for the development and manufacture of high-quality rolling bearings, plain bearings, linear guidance systems, and engine components for mechanical engineering, aerospace and the automotive industry worldwide.
Together we have a broad range of products, which is among the most comprehensive in the rolling bearing industry. We can supply products for applications in around 60 industrial sectors and numerous automotive applications with approximately 40,000 volume produced catalog products. In addition, we develop with our customers a wide variety of special solutions with which complex tasks involving bearings can be managed reliably and economically. This means that for the Industrial division alone, we can supply nearly 225,000 products.
What’s more, we can offer our customers a wide range of services including support, diagnostics, and maintenance and assembly for rolling bearings and systems.
FAG Rolling and Plain Bearings
Rolling bearings generally comprise two bearing rings with integral raceways. Rolling elements are arranged between the rings and roll on the raceways. Rolling elements can be balls, cylindrical rollers, needle rollers, tapered rollers or barrel rollers. The rolling elements are generally guided by a cage that keeps them at a uniform distance from each other and prevents them coming into contact with each other. In needle roller bearings and ribless spherical roller bearings, the cage also ensures that the rolling element axis is positioned correctly. Where bearings can be dismantled, the cage holds the rolling elements together and gives easier fitting of the bearings. For particular applications, rolling bearings with a full complement of balls, cylindrical rollers or needle rollers may be used.
The function of plain bearing arrangements, like rolling bearing arrangements, is to support or guide parts that are movable relative to each other. They must support and transmit the forces occurring in this case. Whereas the bearing arrangement elements in rolling bearing arrangements are separated from each other by means of rolling parts - rolling elements - the movable component in plain bearing arrangements - normally a shaft, stud or strip - slides on the sliding surface of a static bearing bush, bearing cup or sliding strip. The sliding motion occurs directly between the sliding layer of the bearing body and the part that is supported. Lubrication is ensured by embedded lubricants or a solid layer applied to a supporting body. In radial motion, the clearance between the shaft and sliding layer ensures the mobility of the sliding partners.
FAG Deep groove ball bearings
FAG Deep groove ball bearings are versatile, self-retaining bearings with solid outer rings, inner rings and ball and cage assemblies. These products are of simple design, durable in operation and easy to maintain; they are available in single and double row designs and and in open and sealed variants. Due to the production technology used, open bearings can still have turned recesses on the outer ring for seals or shields.
Due to their low frictional torque, they are suitable for high speeds.
FAG Spindle bearings
Spindle bearings are single row angular contact ball bearings comprising solid inner and outer rings and ball and cage assemblies with solid window cages. They cannot be dismantled. The bearings are available in open and sealed versions.
FAG Four point contact bearings are single row angular contact ball bearings and therefore require significantly less space in an axial direction than double row designs.
The bearings comprise solid outer rings, split inner rings and ball and cage assemblies with brass or polyamide cages. Due to the two-piece inner rings, a large number of balls can be accommodated. The halves of the inner ring are matched to the specific bearing and must not be interchanged with those of bearings of the same size. The outer ring with the ball and cage assembly can be fitted separately from the halves of the inner ring.
FAG Thin section bearings have high precision, are very quiet and have high load carrying capacity. These ball bearings are available in three different designs and have an extremely small, predominantly square cross-section. Within each series, the cross-section remains constant even for larger shaft diameters and housing bores. The bearings are therefore also described as Constant Section (CS). This special feature distinguishes thin section bearings from conventional bearings as standardised in ISO series.
FAG Self-aligning ball bearings are double row, self-retaining units comprising solid outer rings with a concave raceway, inner rings with a cylindrical or tapered bore and ball and cage assemblies. The bearings are available in open and sealed versions.
FAG ball roller bearing, a new and promising bearing series, has been developped 100 years after the invention of the ball bearing and 50 years after volume production readiness of the needle roller bearing.
FAG tapered roller bearings are characterized by high radial and axial load carrying capacity and by a large usable speed range. They are efficient at supporting forces and ensure a precise and rigid shaft guidance system due to the large effective distance between the bearings. They are adjustable, can be dismantled, and are therefore easy to fit.
FAG Spherical Roller Bearings:
Schaeffler’s spherical roller bearings are designed in such a way that they can easily be integrated into any system regardless of its level of complexity – for example into wind turbines. The spherical roller bearing in the rotor shaft is perfectly matched to the bearings in the gearbox and the generator, as well as the spherical roller bearings installed in the yaw system.
FAG bearing housings are predominantly made from flake graphite cast iron. Housings made from cast steel and spheroidal graphite cast iron can be supplied by agreement. Since the bearings are normally lubricated with grease and the initial charge is effective for a long period, most housings do not have relubrication holes. However, gates or marks are present so that lubrication holes can be made if required. When relubrication is carried out, it must be ensured that excess grease can escape.
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