Belt tension device with radial bearing sealed against friction component - has tension arm which by means of radial bearing is pivotably located against machine part in arm pivot direction

摘要

Between the tension arm (1) and the machine part (5) is at least one friction component (9) for damping the pivot movements of the tension arm. The radial bearing (3) is sealed against the friction component (9) by a sealed ring (10) of compressible elastomer. In fact, on both sides of the radial bearing is a sealing ring (10, 12) of compressible elastomer. Pref., the sealing ring is made of a cellular polyurethane elastomer. The pivot shaft (2) is guided via the radial bearing (3) in the hole (11) of a nave (4), which at its end turned away from the tension arm (1) is connected via a radial collar (6) with a hollow cylindrical housing (5) surrounding the nave. USE/ADVANTAGE - Used as a tension device for belts or chains. It has the radial bearing sealed against the friction component by a sealing ring of compressible elastomer.