The Stihl bearing (code 9503-003-6440) is an original spare part to be mounted inside the bevel gear or on the clutch bell of Stihl brushcutters, augers, engines, loppers and hedge trimmers. In the first case, it is located in the bevel gear and serves to support the shaft placed inside it, in the second case, it is placed between the clutch bell and the MN fan fairing