An improved rotary roller reamer

Details An improved rotary roller reamer An improved rotary roller reamer

E - Fixed Constructions

21

B

E21B 10/30 (2006.01)

Patent

CA 2720411

The invention relates to a roller assembly (20) for a rotary roller reamer (10). The roller assembly (20) includes a roller pin (22) and a crushing roller (24). The crushing roller (24) is arranged to be mounted on the roller pin (22) and to rotate thereabout. The roller assembly (20) is connected together so as to form a single cartridge which can be inserted into a pocket (18) of the rotary roller reamer (10) and secured thereto using a single fastener device.

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