SKF Bearing FBSA 206 A/QBC

Product description of SKF Bearing FBSA 206 A/QBC

SKF Bearing FBSA 206 A/QBC, It belongs to SKF Bearing > Super-precision bearings > Angular contact thrust ball bearings for screw drives > Cartridge units with a flanged housing > Super-precision. Machine tools require screw drives that can position a work piece or machine component quickly, efficiently, and precisely. To meet these requirements, screw drives can be supported at both ends by SKF super-precision angular contact thrust ball bearings. The bearings provide a high degree of axial stiffness, high axial load carrying capacity, accommodate high speeds and rapid accelerations, and offer very high running accuracy.

SKF Bearing FBSA 206 A/QBC, Angular contact thrust ball bearings for screw drives are well suited for screw drive applications, but are also beneficial in other applications, where reliable radial and axial support is required, together with extremely precise axial guidance of the shaft.

SKF Bearing FBSA 206 A/QBC, Single direction bearings
Are available in the BSA and BSD series.
Are available for shaft diameters from 12 to 75 mm
Are non-separable
Have a 62° contact angle
The transition radius between the raceway and shoulder on both rings is ground. This reduces edge stresses by approximately 30%, enabling these bearings to accommodate heavy axial loads and incidental overloading better than conventional designs.

SKF Bearing FBSA 206 A/QBC, Single direction bearings are designed to accommodate axial loads in one direction only and are therefore adjusted against a second bearing or mounted as sets. The bearings are universally match-able, as standard, and can be mounted in sets of up to four bearings for a variety of bearing arrangements, reaching the performance level of matched sets. Universally match-able bearings are specifically manufactured so that when mounted in random order, but immediately adjacent to each other, preload within a predetermined range and effective load sharing will result without the use of shims or similar devices. They have very tight tolerances for the bore and outside diameter as well as for radial run-out.
A unique heat treatment helps to maintain a constant bearing preload over the entire service life of the bearings.
Matched bearing sets
Single direction bearings can be supplied as matched sets on request. However, because the standard bearings are universally match-able, SKF recommends reducing inventory by ordering single bearings only and arranging them in sets as required.

The SKF assortment of super-precision angular contact thrust ball bearings for screw drives can accommodate virtually any requirement placed on support bearings for screw drives. The main criteria used when selecting bearings to support screw drives are axial stiffness and load carrying capacity, running accuracy, speed, and frictional moment. Other factors to consider can be the moment stiffness of a bearing arrangement or the ability to cope with misalignment between the shaft and housing. Mounting and seal requirements also need to be considered. It provides an overview of the criteria and to what extent the different bearing series fulfil the requirements.

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