Rolling Element Bearings

The COBRA software package is capable of evaluating all types of rolling-element bearings. Practically any bearing or bearing system available in the industry can be simulated.

The ROLLING-ELEMENT bearing module [COBRA] predicts the performance of up to six bearings of different types mounted on a shaft and experiencing radial, thrust and moment loading. 

Bearing types include:

  • Conrad (radial) ball
  • Angular contact ball
  • Cylindrical roller
  • Tapered roller
  • Spherical roller

The program allows the evaluation of misalignment, offsets, preload, clearance or end-play on bearing performance. Bearing preload from spacer grinding or shimming as well as preload springs is included. Individual bearings can be made to "float". Bearing performance results with COBRA include:

  • Ball load distribution
  • Stress distribution
  • Bearing reaction loads and displacements
  • System  reaction loads and displacements
  • Hertz contact stress
  • B10 life
  • Contact angles
  • Spring/stiffness rate