Cup Gasket - Provides secondary sealing around
the seat and maintains the position of the seat so
that it properly mates with the seal face.

Stationary Face - The mating ring against which
the seal face runs. Must be fi nished in the same
manner as the rotary face.

Rotary Face - The rotary face is fi nished to a
specifi ed degree of fl atness and smoothness and
provides a leak-proof running joint.

Bellow -
Type A & B - provides a seal at the shaft.
Type C, D & E - provides a seal at the shaft surface
and a friction-drive connection between the
shaft and seal assembly.

Spring Retainer - Positions and centres the
spring, aiding the concentricity between the
spring and shaft.

Spring - Provides positive pressure for the
sealing between the sealing faces.

Drive Ring - Controls fi t of the bellow to the
shaft for proper friction drive. Type A Drive Ring
mates against the shaft for friction drive.

Retainer - Maintains contact with the bellow and
provides positive drive to the Rotary Face.

Drawing Codes
D1 Shaft Size
D2 Seal Head O.D.
D3 Counterbore or Seat O.D.
L1 Seal Head Operation Height (OP. HT.)
L2 Seat Thickness