A mounting arrangement for fixing a cutting blade flush on cut-and-break tools and other construction equipment

Abstract

A mounting arrangement (400, 900) for fixing a cutting blade (110, 800) flush on construction equipment (100),the mounting arrangement (400, 900) comprising a hub (300) with a hub face (310, 710) and a flange (410) arranged to rotate with the hub (300) about an axis of rotation (R),where the hub face (310, 710) and the flange (410) are arranged to engage opposite sides of a depression (420) formed around a central aperture (430) of the cutting blade (110, 800), where the flange (410) is matched to the depression (420), to fix the cutting blade against the hub (300) flush with the cutting blade,where a radially outer part (340) of the hub face (310, 710) is configured to engage the cutting blade (110, 800) and a central part (350) of the hub face (310, 710) is adapted to engage the flange (410),where a periphery (355) of the central part (350) of the hub face (310, 710) comprises radial indentations (330) that form axial passages which connect with respective tangential slots (360, 720) that extend at least partly around the central part (350) of the hub face (310, 710), which slots (360, 720) have openings facing radially outwardly.