SKF
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 10 | 0,75 € | 14,32 € |
| 25 | 1,50 € | 13,57 € |
| 50 | 2,26 € | 12,81 € |
The SKF 1726205 -2RS1 tension bearing, measuring 25x52x15 mm and featuring a ground seal on both sides, offers a compact solution for housings with a spherical seat.
This SKF 1726205 -2RS1 clamping bearing is based on the geometry of conventional deep-groove ball bearings and is made from 100Cr6 rolling-element bearing steel. Unlike many other bearing units, this design has no widened inner ring and no additional fasteners such as grub screws or eccentric rings. It is secured directly via a suitable shaft fit. The roller bearing primarily absorbs radial forces and operates within a temperature range of -20 to +120 degrees Celsius.
Design engineers primarily use this bearing where there is limited axial space available on the shaft. Thanks to the spherical shape of the outer ring, the unit compensates for static misalignment when fitted in a suitable housing with a spherical bore. In this way, the system compensates for shaft misalignment caused during assembly or by frame distortion. Typical applications can be found in general mechanical engineering as well as in bearing arrangements with spherical housing mounts.
The spherically ground outer ring allows for angular misalignment within the bearing housing without the risk of edge pressure or premature wear on the raceways. The 2RS1 seal, which seals on both sides, effectively protects the interior against the ingress of dirt particles and splash water. At the same time, the lubricant remains within the bearing chamber. Manufacture to tolerance class P0 (ABEC 1) ensures dimensional accuracy in accordance with standards for standardised fits.
The unit has an internal diameter of 25 mm, an external diameter of 52 mm and a total width of 15 mm. Both the inner ring and the outer ring are the same width, which is why the dimensions correspond to those of a standard deep-groove ball bearing.
The bearing has no additional means of fastening, such as eccentric clamping rings or threaded pins. It is secured on the 25 mm shaft by means of a cylindrical fit or axial shaft shoulders, as the inner ring is not widened.
The 2RS1 version features sliding seals fitted on both sides. This design keeps dust, dirt and moisture out of the bearing and minimises lubricant leakage across the entire operating range.
A spherical outer ring surface serves to compensate for static misalignment between the housing seat and the shaft. As soon as the bearing is fitted into a housing with a spherical mating surface, the outer ring aligns itself flexibly, thereby preventing stress build-up in the ball set.
The permissible operating range is between -20 and +120 degrees Celsius. Within this temperature range, both the 100Cr6 roller bearing steel and the sealing materials retain their functional dimensional stability and strength under normal operating loads.
P0, or ABEC 1, refers to the standard tolerance class for rolling bearings in accordance with ISO and ABEC specifications. It defines specific manufacturing limits for concentricity, dimensional accuracy and axial run-out, which meet the requirements of the vast majority of standard industrial applications.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
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