| 摘要 |
A ventilating insert for the substantially coaxial fixing of abrasive tools, such as deburring wheels, cutting wheels, fiber discs, Scotch-Brite® having an abrasive disk-like element, to the free end of a rotating shaft of a grinder, comprising at least one threaded ring for coupling to the free end of the rotating shaft, an annular portion of which is jointly associated with the disk-shaped element, the threaded ring comprising a central threaded hole and being designed to be arranged substantially coaxially with the disk-shaped element and able to be associated with corresponding threaded elements provided on the free end of the rotating shaft. The ventilating insert comprises deflectors for at least one fluid for cooling the disk-like element which are associated with the threaded ring for propelling radially the cooling fluid from the central to the peripheral region of the disk-like element during the rotation thereof.
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