Abstract: A cutter retention assembly includes a mowing deck coupled to a mower. A spindle, rotated by the mower, extends from the mower downwardly relative to a top wall of the mowing deck. A spindle housing extends from the mowing deck around the spindle with a coupling portion of the spindle extending from the spindle housing. A lip extends radially outward from the spindle outside of the spindle housing. A retainer is coupled to the spindle housing around the spindle defining a collar. The collar is positioned adjacent to and aligns with the lip such that the lip will be retained within the mowing deck by the collar upon catastrophic failure of the spindle. A cutter is coupled to the spindle, exposed in the mowing deck, and rotates with the spindle. The cutter is thus retained adjacent to the mowing deck upon the catastrophic failure of the spindle.

Abstract: A no weld replaceable cutting tooth holder system facilitates replacement of cutting teeth on a cutting disc with improved durability, balance, and resistance to connection defects. The system includes a cutting disc and a holder having a connector and a socket. The holder is secured to the cutting disc without welding. The socket is configured for securement of a cutting tooth onto the cutting disc.