SKF
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 10 | 7,42 € | 141,03 € |
| 20 | 14,84 € | 133,61 € |
The SKF 51124 single-direction axial deep groove ball bearing, with dimensions of 120 × 155 × 25 mm, accommodates high axial loads in one direction.
The 51124 axial deep-groove ball bearing guides shafts in the axial direction and supports pure thrust loads. As a single-direction design, this model specifically absorbs thrust forces from one direction. SKF manufactures the components from hardened standard rolling-element bearing steel (100Cr6), ensuring that the raceways remain resistant to mechanical wear. The integrated sheet steel cage keeps the rolling elements in order and maintains a stable lubricating film. The bearing is primarily used in vertically or horizontally mounted shaft systems that have to withstand defined thrust forces.
This component is used when shaft guides need to support unilateral axial thrust forces in the absence of radial loading. Typical applications include axially loaded shaft lines with a clearly defined load direction. The bearing is not angularly adjustable, which is why the design requires precisely perpendicular contact surfaces on the shaft and housing. As it is designed to tolerance class P0 or ABEC 1, the unit is suitable for standardised fits in mechanical engineering.
This version does not include a separate shim and features a flat housing flange. The mating surfaces in the housing must therefore be perfectly flat, as the component does not compensate for misalignment. The permissible temperature range is from –30 to +150 degrees Celsius, which allows for a wide range of applications. During assembly, the direction of action must be observed: the shaft disc with a 120 mm bore sits firmly on the shaft, whilst the housing disc with an outer diameter of 155 mm rests against the housing.
With an internal diameter of 120 mm, an external diameter of 155 mm and a width of 25 mm, the bearing is suitable for standardised mounting spaces. The component must not be subjected to radial forces. Before installation, the connecting diameters of the shaft and the housing bore must be checked to ensure they correspond to these values.
As a single-direction axial bearing, this model supports only axial compressive forces acting in one direction. The bearing must not be subjected to radial loads; a separate radial bearing arrangement must be provided for this purpose. The shaft disc transmits the load via the ball and cage assembly to the housing disc, which is firmly supported in the housing.
The bearing washers and the rolling elements are made from standard 100Cr6 bearing steel. This through-hardened material withstands high compressive stresses and ensures the raceways are wear-resistant. The guided set of rolling elements is housed in a stamped sheet steel cage, which keeps the balls at a consistent distance from one another and ensures even load distribution.
The permissible operating temperature range is from -30 to +150 degrees Celsius. The dimensional stability of the components made from roller bearing steel and the robust sheet steel cage ensure compliance with this range. Match the lubricant used – whether grease or oil – to the actual operating temperature of the system to prevent lubricant film breakdown.
No, this axial bearing is not angle-adjustable. The housing washer has a flat bearing surface and is designed without a shim. Misalignment during installation or shaft deflection will result in uneven load distribution across the raceways. The contact surfaces must therefore be machined so that they are exactly perpendicular to the axis of rotation.
Tolerance class P0, also known as standard tolerance or ABEC 1, is the standard accuracy class for industrial roller bearings. It specifies limit dimensions for bore diameter, outer diameter and radial run-out. This level of accuracy is sufficient for the vast majority of applications in general mechanical engineering and allows the use of standard ISO fits on shafts and in housings.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
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