Abstract: A method and apparatus for smooth-rolling and deep-rolling the journal pins of multi-crank crankshafts divides the crank pins into two groups, each including alternating crank pins, since the space between neighboring crank pins is insufficient for simultaneously rolling all of the pins including the main bearing pins in one operation. Each group of crank pins is then rolled separately in succession, whereby one group includes the main bearing pins. Thus, a crankshaft, including any number of closely spaced crank pins, can be completely machined in two rolling operations. In order to carry out this method a rolling apparatus includes crank pin rolling devices for each of the pins of one group. The rolling devices are axially slideably adjustable in unison between two determinable positions in which they may be fixed or locked after adjustment.

Abstract: Surface-hardening and smoothing rolling apparatus includes at least one movable rolling device at least including a die carrier with at least one backing element, as well as at least one additional rolling device, the movable and additional rolling device being carried by a standard disposed on a slide, the movable rolling device being arranged so that the position thereof is changeable relative to that of the additional rolling device in a radial plane of a crankshaft to be rolled.

Abstract: A rolling apparatus with a driving mechanism for a workpiece to be rolled and with at least one movable rolling device includes at least a die carrier with one rolling element and a die carrier with one backing element and including at least an additional one of the elements carried by at least one of the die carriers, the rolling element being changeable from one position thereof to at least another position thereof, one of the positions being a working position, at least one of the elements consisting of the rolling element in the working position thereof and at least one backing element associated therewith being kinematically connectible to a power actuating device.

Abstract: Surface-hardening and smoothing rolling machine for rolling at least eccentrically disposed surfaces on a workpiece, having equipment for seating and rotatably driving the workpiece, and comprising at least one movable rolling device at least including a die carrier with at least one rolling element and a die carrier with at least one backing element, the movable rolling device being movable together with the workpiece, and being arranged in a position which is linearly changeable in a radial plane of the workpiece.

Abstract: A crankshaft rolling machine includes a pair of model crankshafts mounted for synchronous rotation. One or more crankshaft rolling units are coupled to the model crankshafts in a manner enabling adjustment of the units along a linear path to adapt the device to the stroke length of a crankshaft to be rolled. The apparatus may be rapidly changed for rolling of crankshafts having different stroke lengths by linearly sliding the individual rolling units relative to the model cranks and thereafter locking the individual rolling units to the model cranks at positions corresponding with the stroke length of the crankshaft to be rolled.

Abstract: A method and apparatus for smooth-rolling and deep-rolling the journal pins of multi-crank crankshafts divides the crank pins into two groups, each including alternating crank pins, since the space between neighboring crank pins is insufficient for simultaneously rolling all of the pins including the main bearing pins in one operation. Each group of crank pins is then rolled separately in succession, whereby one group includes the main bearing pins. Thus, a crankshaft, including any number of closely spaced crank pins, can be completely machined in two rolling operations. In order to carry out this method a rolling apparatus includes crank pin rolling devices for each of the pins of one group. The rolling devices are axially slideably adjustable in unison between two determinable positions in which they may be fixed or locked after adjustment.