For many years, Schaeffler has made a decisive contribution to the development and current level of rolling bearing technology, particularly through its compact needle roller bearings, high load capacity cylindrical roller bearings and its diverse range of track rollers for rotary and linear motion. These machine elements have proved themselves many times over; they have high load carrying capacity, a versatile range of applications and are highly cost-effective.
Due to their design, a single bearing can reliably support radial,axial and tilting moment loads. It is therefore possible in many cases to replace bearing arrangements comprising a combination of radial and axial bearings by a single bearing. This reduces, in some cases considerably, the costs and work required in the design of the adjacent construction and the fitting of bearings.Slewing rings are sealed on both sides, lubricated with a high quality grease, can be relubricated via lubrication nipples and are particularly easy to fit. The bearing rings are supplied without gear teeth or,in order to achieve simple drive solutions, are available with external or internal gear teeth.
Four point contact bearings– these slewing rings without preload are robust and proven under very demanding operation; they place only slight demands on the flatness and perpendicularity of the adjacent construction– they are suitable for applications with low requirements for accuracy and rigidity of the bearing arrangement, for example in simple metalworking machines, wind power equipment and construction machinery crossed roller bearings– these preloaded slewing rings can support higher loads than four point contact bearings.
They have proved themselves particularly where bearings are subjected to high radial forces and moderate axial and tilting moment loads– they are suitable for applications with uniform running free from stick-slip, low rotational resistance and high requirements for axial and radial runout accuracy and rigidity, for example in robots,handling systems and machine tools.Catalogue 404 presented here gives comprehensive information on the reorganised standard range of these slewing rings.Any information in editions that does not concur with the information is this edition is therefore invalid.