MENU Buscar NSK - Motion & Control
Damage Condition Possible Causes Countermeasures
Wear occurs due to repeated sliding between the two surfaces.
Fretting occurs at fitting surface and also at contact area between raceway ring and rolling elements.
Fretting corrosion is another term used to describe the reddish brown or black worn particles.
  • Poor lubrication
  • Vibration with a small amplitude
  • Insufficient interference
  • Use a proper lubricant
  • Apply a preload
  • Check the interference fit
  • Apply a film of lubricant to the fitting surface


Click a photo to enlarge it

Fretting 1

Part: Inner ring of a deep groove ball bearing
Symptom: Fretting on the bore surface
Cause: Vibration

Fretting 2

Part: Inner ring of an angular contact ball bearing
Symptom: Fretting over entire circumference of bore surface
Cause: Insufficient interference fit

Fretting 3

Part: Outer ring of a double-row cylindrical roller bearing
Symptom: Fretting on the raceway surface at roller pitch intervals

Cookies no site da NSK

Nós usamos cookies para garantir que nós damos-lhe a melhor experiência em nossos sites e aplicações web. Ao continuar sem alterar as configurações do navegador, vamos supor que você deu o seu consentimento para receber cookies. No entanto, você pode alterar a configuração de cookies do navegador a qualquer momento.