(under subclass 100) Apparatus wherein the dustproof and waterproof elastomeric element is located between a usually cylindrical element used to fasten the two inflexible belt components and the recess formed in one of the two belt components itself.
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103+, for a seal between bushing and track link.
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74, Machine Element or Mechanism,
18+, for a flexible sealing diaphragm attached to a moving rod and to a casing.
384, Bearings, 138, for a unitary bearing and seal; and subclass 256 foran adjustable roller end support.
411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener,
353, for a securing means rotatable about fastener element and having opposed ramp surfaces; and subclass 517 for a resilient metallic retainer ring. [figure] [caption]A - Side link; B - Connector pin; C - Bushing or sleeve; D - Link opening for pin; E - Annular recess in link for sleeve; F - Link opening for sleeve; G - Annular recess in link for seal; H - Seal assembly; J - Seal ring; K - Annular resilient member
