Patent ID: 8590149
Filing Date: 2013-11-26
Classification: F01L,Y10T

Abstract:
1. A method of manufacturing a lift transmitting component for a gas exchange valve train or a fuel pump drive of an internal combustion engine, the lift transmitting component comprising a housing, a bearing pin fixed in a reception bore of the housing and a roller mounted with a sliding or a rolling bearing on the bearing pin, the method comprising: core hardening the bearing pin over an entire axial length to a core hardness of at least 650 HV and the hardness of the bearing pin is at the most 780 HV; and radially widening pin ends of the core-hardened bearing pin relative to the reception bore to provide a connection of the bearing pin to the housing through positive engagement, the radial widening of one of the pin ends is realized via a shaping die which travels axially parallel to the bearing pin and applies a force to the pin end in a transition region between a periphery and a front end surface of the bearing pin.