Improved rotary expansion tool, expansion member and methods...

Details Improved rotary expansion tool, expansion member and methods... Improved rotary expansion tool, expansion member and methods...

E - Fixed Constructions

21

B

E21B 43/10 (2006.01) E21B 29/10 (2006.01)

Patent

CA 2563883

An expansion member for a rotary expansion tool comprises a spindle adapted to be supported at both ends, and a roller mounted concentrically on the spindle. A sealed lubrication system is contained within the spindle for supplying lubricant to a bearing or bearing surface at an interface between the spindle and the roller.

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