The radial seal may be a dual- lip seal.

Washer (05) is used between one of the plane surfaces of double lip seal (11 ) having metallic stiffener (15) and the needle surface (09).

The seal (10) has an axially inwarly extending lubricant lip (18) and an axially outwardly extending mud lip (20).

The radial seal may be a dual- lip seal.

double lip vacuum seal

A method of forming an elastomeric radial lip seal (Figs. 3-5) with a bonded solid, deformable, and non-moldable wear insert having a hydrodynamic surface positioned at the sealing lip through compression molding.

A double offset constant velocity (10) joint is provided.

A double offset constant velocity joint (10) is provided.

A double containment coupling is used to form a mechanical joint between double containment pipes.

Each of the refastenable side seams is a dual side seam (100) that includes a front lap seam and a back lap seam.

A portion (26) of the stiffener ring may be axially aligned with the lip portion (20) of the seal element.

A joint sealing structure (21) including an annular seal ring (23) having a sealing portion (28) provided with a sealing lip (31) having a dynamic seal engagement with a joint member sealing surface (18) at all times.

In the groove (150), a metal seal (140), which has an annular shape (O-ring shape) as a whole and a double structure, is arranged.

Double block and bleed valve arrangement (being equivalent to deck water seal

Said double-joint comprises two elementary joints (30A, 30B) axially connected to each other along a double-joint axis and including each an elementary break center.