Grease filling arrangement in a cutter for a boring head
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United States of America Patent
Stats
-
Nov 4, 2008
Grant Date -
Jan 3, 2008
app pub date -
Sep 14, 2007
filing date -
Mar 20, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement for replenishing lubricating grease in drill cutters (3) that include a conical outer barrel (7) which is rotatable about a shaft (5) disposed centrally in the cutter, wherein there is provided in the cutter shaft (5) a passageway (16) that extends along the shaft from the cutter end of largest diameter and that connects with a transverse passageway (18) which opens into a bearing-accommodating space (13) in the cutter for delivering lubricating grease to the space (13), and wherein a lubricating nipple (19) is provided on the cutter end wall of largest diameter and functions to allow lubricating grease to be released from the bearing-accommodating space (13).
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