Mechanical self-centring pullers MSP-2/3-120 to MSP-2/3-440 are among the products included in the expanded product range and have the task of ensuring that small to medium-sized bearings, couplings and rings can be removed safely and with ease. The extractors, which are available in six different sizes and for a workpiece outside diameter of up to 440 mm, can be used as two or three-arm extractors. Hydraulic extractors HSP-43 to HSP-303, which can also be used as two- or three-arm extractors, are suitable for large bearings, couplings and rings with high extraction forces. The dismounting of workpieces up to an outside diameter of 620 mm is possible courtesy of six different extractor sizes with a maximum extraction force of 294 kN.
Both the mechanical and hydraulic extractors of series MSP, HSP and HXP have a self-centring function to enable easy and safe positioning on the workpiece. The uniform inward and outward adjustment of the arms makes the extractors easy to use, and the adjustment mechanism in the form of a thread ensures that the arms are securely seated on the workpiece and cannot become detached.
Oliver Massa, director of sales & partner management for smart maintenance tools at Schaeffler, said: “With the inclusion of self-centring extractors in the expanded product portfolio, we are creating the basis for smart and accelerated handling in the dismounting of rolling bearings, couplings and other components. A further advantage is the ergonomic design, which allows maintenance personnel to operate the extractors single-handedly.”
According to Schaeffler, the three-piece plate Tri-section-plate-xx provides a gentler means of dismounting rolling bearings, bearing inner rings and other components. In order to avoid damage to the bearings during dismounting, the plates engage with the inner ring of the rolling bearing and prevent the extraction force from being introduced over the rolling bearings. The three-piece extraction plate, available in four different sizes, can be used for shaft diameters from 26 mm to 495 mm.