Roller Bearing Cage Compound Radius Stress Concentration

The pocket holes are contoured with a compound radius featuring different radius values at different locations. The first radius is larger than the second radius, creating localized stress distribution optimization at the corner portions where pocket holes intersect with cylindrical bores. This local geometric modification reduces stress concentrations specifically at the most vulnerable regions without altering the overall cage structure.

The corner portions of the pocket holes are rounded with compound radii instead of sharp corners or simple fillets. This curvature modification eliminates stress concentration points by creating smooth transitions in the geometry, allowing stress to distribute more evenly throughout the cage structure under high centrifugal loading conditions.

The compound radius contour applies different radius values at different locations of the pocket hole corner portions. The larger first radius provides enhanced stress relief at the primary stress concentration zone, while the smaller second radius maintains adequate structural integrity. This localized geometric optimization extends the service life of the cage under high-speed operational conditions.

By rounding the corner portions with compound radii, the design eliminates sharp geometric discontinuities that would otherwise act as stress concentration points. The smooth curved transitions allow the cage to withstand repeated cyclic loading at high rotational speeds without premature fatigue failure, thereby extending service life.