Seals Parts Technician First Period Material Identification and Calculations 270103d.

Seals

Parts Technician

First Period

Material Identificationand Calculations

270103d

© 2012, Her Majesty the Queen in right of the Province of Alberta

Figure 1 - External and integral seals. (Courtesy SKF Canada Limited)


Figure 2 - Static seal - valve cover gasket.


Figure 3 - Dynamic seals.


Figure 4 - Gaskets.


Figure 5 - Single-lip seal.


Figure 6 - Single-lip spring-loaded seal.


Figure 7 - Double-lip seal.


Figure 8 - Dual-lip seal with a portion magnified.


Figure 9 - Stainless steel wear sleeve.


Figure 10 - Hydrodynamic seal.


Figure 11 - Split seal.


Figure 12 - Seal with replaceable sleeve.


Figure 13 - Piston rings allow a certain amount of leakage can be tolerated.


Figure 14 - Wind back seals.


Figure 15 - Face seal.


CAUTION

Faces seals cannot be stored on edge or dropped. Finger acid will destroy them.


Figure 16 - Parts of a face seal.


Figure 17 - Dust seal used on rear axle assembly.


Figure 18 - Static diaphragm seal in a vacuum motor.


Figure 19 - Brake chamber with dynamic diaphragm seal.


Figure 20 - Three grades of threadlockers.


Figure 21 - Teflon thread sealers.


Figure 22 - Static seal packing.


Figure 23 - Fabric packing.


Figure 24 - Fabric packing with a braided core.


Figure 25 - Exploded view of a wheel cylinder that uses cup-type seals (packings).


Figure 26 - V-ring seal. (Courtesy SKF Canada Limited)


Figure 27 - V-ring packing.


Figure 28 - U-cup packing.


Figure 29 - O-ring assortment kit.


Figure 30 - O-ring seal with a built-in sleeve.


Figure 31 - Felt seal. (Courtesy SKF Canada Limited)


Figure 32

a)

b)

c)

d)

e)

f)


Figure 33 - Identification number stamped on a seal.

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