[Specification] Non contact seal made of synthetic rubber [Advantage/Disadvantage] No friction Very good protection against contamination [Design] 
Rubber seal
N o s e a l s
M e t a l s h i e l d s
R u b b e r s e a l
P T F E s e a l s
P T F E s e a l s w i t h m e t a l s h i e l d s
V i t o n s e a l s