Abstract: A crusher may include a crushing member that is driven in an operatively connected manner by way of an eccentric element such that material to be crushed can be comminuted by way of a crushing movement generated at least in part by the eccentric element. At least one eccentric bushing may be connected by way of an active surface to the eccentric element by way of frictional engagement. The eccentric bushing may have a pressure medium chamber that uses pressure to vary the frictional engagement between the eccentric element and the eccentric bushing. In some examples, the crusher may be of a jaw type or a cone type.

Abstract: A rotor of an impact crusher may include a crushing roll body and at least one holding device that is mounted on the crushing roll body and is configured to hold a blow bar. The holding device may have a guide frame and at least one guide element. The guide element may be connected to the blow bar and may be movably mounted on the guide frame such that movement of the guide element relative to the guide frame in a radial direction results in movement of the blow bar relative to the crushing roll body in the radial direction. The guide element can be arranged so as to be movable in an axial direction relative to the blow bar.

Abstract: A crusher may include a crushing member that is driven in an operatively connected manner by way of an eccentric element such that material to be crushed can be comminuted by way of a crushing movement generated at least in part by the eccentric element. At least one eccentric bushing may be connected by way of an active surface to the eccentric element by way of frictional engagement. The eccentric bushing may have a pressure medium chamber that uses pressure to vary the frictional engagement between the eccentric element and the eccentric bushing. In some examples, the crusher may be of a jaw type or a cone type.

Abstract: An example arrangement on a crushing roller of a crusher may be configured to receive a crusher tooth that is used to generate a crushing action. The crusher tooth may project at least partially out of a surface of the crushing roller. In some examples, the crushing roller may include a receiving pocket that receives a tooth root of the crusher tooth. Moreover, at least one bracing means may be disposed in the receiving pocket substantially or completely recessed beneath the surface of the crushing roller. The bracing means may help brace the tooth root in the receiving pocket. In some cases, a fastener may be used to secure the bracing means in the receiving pocket.