STC-Steyr® extends its product range to include products with functionalities that complement roller bearings and ball bearings.
STC-Steyr® produces rod ends requiring maintenance as well as maintenance-free versions, sealed and non-sealed. In addition, we distinguish between standard rod ends and rod ends for hydraulic applications. On request, we can of course produce special versions from special materials or with special threads, as well as products for particularly heavy loads.
Slewing rings are complete, ready-to-install bearings with integrated wire-race bearings. They are designed as a four-point bearing, take the same high loads in all directions and are proven to be resistant to impacts and vibrations. The slewing rings are sealed on both sides and set as clearance-free with preload.
Track rollers, yoke-type and stud-type track rollers
Trak rollers, yoke-type and stud-type track rollers are suitable for direct use in all types of cam mechanisms, guide tracks, conveying equipment, etc. These bearings have a thick-walled outer ring that allows them to withstand high shock loads and reduce tensions and bending stresses.
The outer ring has a crowned running surface as standard. This is especially advantageous where the possibility of axial misalignment to the track exists, or edge stresses have to be minimised. Except for single-row units, track rollers, yoke-type and stud-type track rollers are also available with a cylindrical (flat) bearing surface on the outer ring.
Spherical plain bearings
Spherical plain bearings are not rolling bearings but plain bearings. These bearings have an inner ring with concave, outwardly curved outer diameter and concave, fittingly inward-curved outer ring. Spherical plain bearings are suitable for arrangements in which compensatory movements between shaft and housing have to be corrected, or where vibrational, rotational and tilting movements occur at relatively low rotational speeds and edge loading has to be avoided.
Like rolling bearings, plain bearings have the task of supporting or guiding parts that move in relation to each other. In doing so, they have to absorb and transfer the generated forces. However, if the bearing elements in rolling bearings are separated by rolling parts – the rolling elements – then the moveable element in plain bearings – normally a shaft, stud or strip – slides on the sliding surface of a static bearing bush, bearing cup or sliding strip. The sliding motion thus occurs directly between the sliding layer of the bearing body and the supported component. Lubrication is provided by embedded lubricants or a solid layer is applied to a supporting body. In case of radial movement, the bearing clearance between the shaft and the sliding layer ensures the mobility of the sliding partners.
Plain bearings are available as radial bearings, axial bearings, strips, half-shells and many other designs. They run quietly and are particularly suitable when high loads with relatively slow rotational and tilting movements have to be absorbed, as well as under high and low-temperature conditions. Due to their wide variety of specific characteristics, they are therefore used in almost all areas of industry, especially when only a very limited installation space is available.