SKF Bearing FBSA 205/DB

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Specifications of SKF Bearing FBSA 205/DB

SKF Bearing FBSA 205/DB
SKF Bearing FBSA 205/DB

Dimensions

d 25.0mm Bore diameter
H 120.0mm Height
A 52.0mm Overall height
A1 50.26mm Distance over distance ring side faces
A2 32.0mm Distance flange position from side face
A3 15.0mm Flange width
d1 34.0mm Shoulder diameter of laminar ring
D1 88.0mm Cartridge outside diameter at flange side
D2 80.0mm Cartridge outside diameter at housing seat
D3 36.0mm Lock nut innner diameter

Calculation data

Basic dynamic load rating C 22.4kN
Basic static load rating C0 52.0kN
Fatigue load limit Pu 1.93kN
Attainable speed for preload class A 7200.0r/min
Attainable speed for preload class B 3600.0r/min
Contact angle u03b1 62.0u00b0
Preload class A 1580.0N
Preload class B 3160.0N
Frictional moment for preload class A 0.069Nm
Frictional moment for preload class B 0.12Nm
Static axial stiffnes for preload class A 725.0N/u00b5m
Static axial stiffnes for preload class B 925.0N/u00b5m

Mass

Mass cartridge unit 2.3kg

Mounting information

Through hole diameter for attachment bolts 9.2mm
Pitch diameter of attachement bolt holes 102.0mm
Cartridge half diameter without flange 44.0mm

Product description of SKF Bearing FBSA 205/DB

SKF Bearing FBSA 205/DB, 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 205/DB, 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 205/DB, 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 205/DB, 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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