Cutting roller bearing part, cutting roller holder with cutting roller bearing part, cutting wheel with cutting roller holder and tunnel boring machine with cutting wheel

摘要

In the case of a cutting roller bearing part (306) as a component of a cutting roller holder for a cutting wheel of a tunneling machine, a load measuring unit (612, 615, 624) is arranged in a receiving space arrangement (603, 606, 618, 621), which is connected via external closures (509, 512, 515, 518, 521) and a sealing body (636) enclosing passage lines is hermetically sealed against the outside atmosphere. This results in a relatively high accuracy and high long-term stability for load measurements.