

Stainless steel sheet
(JIS* SUS304)
The material of the sealing lip is chosen according to the liquid to be sealed and the rotational speed. For larger shafts, an NBR sealing lip can cope with surface speeds of up to 10-12 m/s, while an FKM lip is suitable for speeds of up to 35-38 m/s.
For details on shaft and housing design, please see the following:
Examples of allowable total eccentricity for oil seals