MENU EU/ENEU/EN Search NSK - Motion & Control
Damage Condition Possible Causes Countermeasures
When debris such as small metallic particles are caught in the rolling contact zone, Denting occurs on the raceway surface or rolling element surface. Denting can occur at the rolling element pitch interval if there is a shock during the mounting (brinell dents).
  • Debris such as metallic particles are caught in the surface
  • Excessive load
  • Shock during transport or mounting
  • Clean the housing
  • Improve the sealing mechanism
  • Filter the lubrication oil
  • Improve the mounting and handling methods

 

Click a photo to enlarge it

Denting 1

Part: Inner ring of a double-row tapered roller bearing
Symptom: Frosted raceway surface
Cause: Debris caught in the surface

Denting 2

Part: Outer ring of a double-row tapered roller bearing
Symptom: Indentations on raceway surface
Cause: Debris caught in the surface

Denting 3

Part: Inner ring of a tapered roller bearing
Symptom: Small and large indentations occur over entire raceway surface
Cause: Debris caught in the surface

Denting 4

Part: Tapered rollers of damage “Denting 3“
Symptom: Small and large indentations occur over the rolling surface
Cause: Debris caught in the surface

Downloads

Contact Search

Please select your options to view your contact.

Your result

Cookies on the NSK website

We use cookies to ensure that we give you the best experience on our websites and web applications. By continuing without changing your browser settings, we assume you give your consent to receive cookies. However, you can change your browser cookie setting at any time.