Cylindrical Roller Bearings with Optimized Profile Taking into Account the Material Structure and Operating Temperature

The present paper proposes a method for an almost uniform pressure distribution between the rolling elements, based on the modification of the roller’s initial straight profile and accounting for material parameters related to the operating temperature. The optimization process is analyzed by including the possible misalignment and/or tilting angles of the roller due to operating conditions. A computer program was developed in the Borland C++ programming language. The contact pressure distribution is evaluated by using a three-dimensional contact analysis model based on the Boussinesq force-displacement relations for a half-space combined with the flexibility approach. For a fast analysis, the algorithm uses a Conjugate Gradient Method in deriving the contact pressures and the real contact area.