Flaking

Condition

Raceway surface is flaked. Surface after flaking is very rough

Cause

Rolling fatigue. Flaking may be caused early by over-load, excessive load due to improper handling, poor shaft or housing accuracy, installation error, ingress of foreign objects, rusting, etc.

Solution

  • Find the cause of the heavy load
  • Examine operating conditions and adopt bearings with larger capacity as necessary
  • Increase viscosity of oil and improve lubrication system to form an adequate lubricating oil film
  • Eliminate installation errors