Rotary oil seals-Contamination-leakage

Failure mode

leakage

Failure cause

dirt ingression

from outside

by the fluid

at installation

Remedial measures

clean installation

filtering of oil at refilling

cleaning of gear box

use of additional elements, e.g. dust lip, 

spinning ring or labyrinth

Failure mode

leakage

Failure cause

dirt ingression

from outside

by the fluid / lubricant

at installation

Remedial measures

clean installation

clean storage of seal according to DIN 7716

cleaning of components