Roller cutting tool with improved sealing

Roller cutting tool with improved sealing

A roller cutter for a drill head for raise boring said roller cutter having a shaft with a longitudinal centre line; a hub rotatably mounted on the shaft; a seal retainer located between the axial ends of the hub and the shaft at least arranged at one end of the roller cutter; the seal retainer supp...

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Hauptverfasser: LINDBLOM, Anders, LOIKKANEN, Joona
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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creator LINDBLOM, Anders
LOIKKANEN, Joona
description A roller cutter for a drill head for raise boring said roller cutter having a shaft with a longitudinal centre line; a hub rotatably mounted on the shaft; a seal retainer located between the axial ends of the hub and the shaft at least arranged at one end of the roller cutter; the seal retainer supporting a primary cutter seal providing sealing between the shaft and the hub in both axial and radial directions, a secondary cutter seal located between the seal retainer and the hub, and that the secondary cutter seal provides sealing in the axial direction.
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title Roller cutting tool with improved sealing
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