Abstract: A cone crusher may include a crushing cone held on a driven eccentric bushing. The eccentric bushing may rotate in a radial direction about a spindle. The spindle may be fixedly clamped in a spindle receptacle provided in a housing lower part. The spindle may comprise a cylindrical upper bearing portion that is braced in a bore that forms the spindle receptacle by way of an upper mechanical clamping device.

Abstract: The invention relates to a gyratory crusher for comminuting material to be crushed, comprising a crusher housing, in which a crusher shaft is arranged, said shaft being held in the crusher housing so that it can tumble about a vertical axis. To accommodate the crusher shaft, the crusher is provided with a cross member which extends diametrically across the crusher housing and the cross member ends of which are connected to the crusher housing. According to the invention, the connection of the cross member ends to the crusher housing has at least one hydraulic tensioning device.

Abstract: The invention relates to a gyratory crusher for comminuting material to be crushed, comprising a crusher housing, in which a crusher shaft is arranged, said shaft being held in the crusher housing so that it can tumble about a vertical axis. To accommodate the crusher shaft, the crusher is provided with a cross member which extends diametrically across the crusher housing and the cross member ends of which are connected to the crusher housing. According to the invention, the connection of the cross member ends to the crusher housing has at least one hydraulic tensioning device.