Tunnel boring machine

Details Tunnel boring machine Tunnel boring machine

E - Fixed Constructions

21

D

E21D 9/10 (2006.01)

Patent

CA 2056763

Abstract: Tunnel boring machine whose driving shaft (4) adjacent to the boring head (6) is journalled in a bearing (12) which is intended to take up only radial forces. Shaft (4) is at its other end journalled in bearings (13,14) which take up both radial and axial forces. 90011.ut1

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