Advanced modeling stress levels in bearing
The problem
For oil and gas drillers alike, the bearings in a mud motor at the end of a drill string have a direct impact on productivity and reliability. These mud motor bearings must endure extreme operating conditions – not only severe axial and shock loads, but also continuous exposure to highly abrasive mud.
The solution
Using advanced modeling techniques utilizing proprietary , SKF engineers could observe stress levels within the bearing, as well as identify and correct problems involving cracked rings and sheared balls – two common problems with mud motor bearings. These findings enabled them to:
- Accurately define the behavior of a bearing stack
- Redesign the bearing to minimize stresses and optimize load carrying capacity
- Test new designs and materials
The result
Using the SKF virtual test rig, engineers developed mud motor bearing solution that provided:
- Improved wear-resistance
- Increased load carrying capacity
- Optimized load distribution
- Increased robustness
- Improved reliability
- Customized design
