An oven comprising a) a heating chamber, wherein the baking process is made, b) a fan providing the circulation of the hot air in the heating chamber, c) a rear wall covering the back side of the heating chamber, d) a fan motor mounted onto the exterior of the heating chamber rear wall and providing the fan in the heating chamber to rotate, e) more than one lug carrying the fan motor and enabling it to be mounted, and f) a plate connected with the lugs, mounted exterior of the heating chamber rear wall, having a shaft hole disposed in the middle of the plate and through which the shaft of the fan motor passes and having more than one lug mounting hole arranged to form a circle around the shaft hole, providing the lugs to be mounted by screws on the plate, whereby said plate comprises more than one protuberance formed platform - disposed in the regions, where the lug mounting holes are situated, - extending from the plate to the lug, wherein the lug is seated, - formed by shaping the plate whereby said plate comprises more than one assembly hole - providing the plate to connect to the rear wall, - disposed between the lug mounting holes, and - arranged to form a circle around the shaft hole, characterized in that the plate comprises cut-outs - provided around the regions, where the lug mounting holes are situated - providing the plate to spring on the rear wall, and in that the cut-outs: - are disposed on the plate, - are formed by partially cutting the periphery of the regions where the lug mounting holes are situated, - provide the regions, where lug mounting holes are situated, to stay connected to the plate by creating a neck portion on the uncut edges of these regions, - provide the regions, where the lug mounting holes are situated, to serve as a spring by moving with respect to the plate along their truncated edges and providing the lugs to spring on the plate and - partially encircle the periphery of the platforms, having a U or C form, the U or C forms' ends of which facing the shaft hole in the middle of the plate, between the U or C forms' ends of which a neck portion is disposed, providing the edges, which face the shaft hole of the platforms, to stay connected to the plate and separating the outer edges of the platforms from the plate, and in that said plate comprises more than one depression formed support - disposed in the regions, where the assembly holes are situated, - extending from the plate to the rear wall and - formed by shaping the plate. a) a heating chamber, wherein the baking process is made, b) a fan providing the circulation of the hot air in the heating chamber, c) a rear wall covering the back side of the heating chamber, d) a fan motor mounted onto the exterior of the heating chamber rear wall and providing the fan in the heating chamber to rotate, e) more than one lug carrying the fan motor and enabling it to be mounted, and f) a plate connected with the lugs, mounted exterior of the heating chamber rear wall, having a shaft hole disposed in the middle of the plate and through which the shaft of the fan motor passes and having more than one lug mounting hole arranged to form a circle around the shaft hole, providing the lugs to be mounted by screws on the plate, - disposed in the regions, where the lug mounting holes are situated, - extending from the plate to the lug, wherein the lug is seated, - formed by shaping the plate - providing the plate to connect to the rear wall, - disposed between the lug mounting holes, and - arranged to form a circle around the shaft hole, - provided around the regions, where the lug mounting holes are situated - providing the plate to spring on the rear wall, - are disposed on the plate, - are formed by partially cutting the periphery of the regions where the lug mounting holes are situated, - provide the regions, where lug mounting holes are situated, to stay connected to the plate by creating a neck portion on the uncut edges of these regions, - provide the regions, where the lug mounting holes are situated, to serve as a spring by moving with respect to the plate along their truncated edges and providing the lugs to spring on the plate and - partially encircle the periphery of the platforms, having a U or C form, the U or C forms' ends of which facing the shaft hole in the middle of the plate, between the U or C forms' ends of which a neck portion is disposed, providing the edges, which face the shaft hole of the platforms, to stay connected to the plate and separating the outer edges of the platforms from the plate, - disposed in the regions, where the assembly holes are situated, - extending from the plate to the rear wall and - formed by shaping the plate.