A mower (100) is described, comprising a quick assembly self-supporting apparatus (20) with a pair of elements (1) adapted to be hooked to the body (101) in order to mount the axle (104), each of said elements (1) comprising a first and a second component (2, 3) configured to be assembled together with the axle (104) interposed therebetween, and hooked to the body (101). The first component (2) comprises: - a substantially "U"-shaped first portion (4), - a first curved portion (5) which departs from said first portion (4) and is adapted to be hooked to the latter (104), - a first tooth (6), which departs at the free end of the first curved portion (5). The second component (3) comprises: - a substantially flat second portion (8) with a curved indentation (9) from which a second curved portion (10) departs, - a second tooth (11), which departs at the free end of the second curved portion (10).
