Component for connection to a crankshaft and method for its manufacture

A divided flywheel for a motor having at least a primary part having a first flywheel mass, a secondary part having a second flywheel mass and at least a damping device acting circumferentially in the force flow between the two parts, the divided flywheel comprising a one-piece, disc-shaped component which:

• a) at an outer circumference of the disc-shaped component, has at least one first axially oriented mounting surface for a first ring-shaped component which is to be attached later in a centered position;
• b) at an axial distance from the first axially oriented mounting surface, has a second axially oriented mounting surface for a second ring-shaped component;
• c) has a radially formed shoulder within a region comprising the second axially oriented mounting surface, the radially formed shoulder being formed from a material thickening which is shaped when shaping the second axially oriented mounting surface, wherein the one-piece component is connected to a bearing flange mounted on the crankshaft and holding the primary mass part, wherein the bearing flange is riveted to the primary flywheel mass part by means of at least one nipple which is axially formed in the primary flywheel mass part and engages through at least one corresponding opening provided in the bearing flange, whereby the at least one nipple is biased with pressure at its end engaging through the bearing flange and is pressed together with the edge of the at least one opening.

A divided flywheel for a motor having at least a primary part having a first flywheel mass, a secondary part having a second flywheel mass and at least a damping device acting circumferentially in the force flow between the two parts, the divided flywheel comprising a one-piece, disc-shaped component which:

• a) at an outer circumference of the disc-shaped component, has at least one first axially oriented mounting surface for a first ring-shaped component which is to be attached later in a centered position;
• b) at an axial distance from the first axially oriented mounting surface, has a second axially oriented mounting surface for a second ring-shaped component;
• c) has a radially formed shoulder within a region comprising the second axially oriented mounting surface, the radially formed shoulder being formed from a material thickening which is shaped when shaping the second axially oriented mounting surface, wherein at least one radially inwardly open chamber adapted in the circumferential direction to the extension of the energy accumulators is provided on the outer circumference of the primary flywheel disc part out from the one-piece component whereby the flange part connected rotationally secured to the secondary flywheel disc part for biasing the energy accumulators engages through the chamber from radially inwards, whereby the chamber holds the energy accumulators and is filled at least in part with lubricant for lubricating same.

A divided flywheel for a motor having at least a primary part having a first flywheel mass, a secondary part having a second flywheel mass and at least a damping device acting circumferentially in the force flow between the two parts, the divided flywheel comprising a one-piece, disc-shaped component which:

• a) at an outer circumference of the disc-shaped component, has at least one first axially oriented mounting surface for a first ring-shaped component which is to be attached later in a centered position;
• b) at an axial distance from the first axially oriented mounting surface, has a second axially oriented mounting surface for a second ring-shaped component;
• c) has a radially formed shoulder within a region comprising the second axially oriented mounting surface, the radially formed shoulder being formed from a material thickening which is shaped when shaping the second axially oriented mounting surface, wherein at least one radially inwardly open chamber adapted in the circumferential direction to the extension of the energy accumulators is provided on the outer circumference of the primary flywheel disc part connected to the one-piece component whereby the flange part connected rotationally secured to the secondary flywheel disc part for biasing the energy accumulators engages through the chamber from radially inwards, whereby the chamber holds the energy accumulators and is filled at least in part with lubricant for lubricating same.