The type for unpressurised conditions or where the pressure is only slightly above atmospheric pressure.This model has an extremely flexible sealing lip and an additional protective lip.Characteristics: Extremely flexible sealing lip; Improved frictional properties; Defined seal path width.Operating limits: Max. peripheral speed: 30m/s; Temperature range : -60 to 220°CMax. pressure: 0.05MpaMax. Centre offset: 0.2mmMax. concentricity tolerance: 0.3mm