Articulated pin joint for a track chain

Joints and connections – Articulated members – Pivoted

Reexamination Certificate

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Details

C403S037000, C403S159000, C305S117000, C305S118000, C184S105300

Reexamination Certificate

active

06869244

ABSTRACT:
An improved articulated pin joint for a track chain used on track laying work machines is provided. The articulated pin joint includes a plug positioned in a central cavity of a track pin. The plug includes an axial passage in which a needle can be inserted to inject grease into the central cavity. The invention facilitates replenishing grease in the field without removing the track chain from the track laying work machine.

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