Identical to the one found on the lift sensor sold by Husqvarna

but it also fits older machines

But we have noticed that there is a demand for this and have instead made a machined hub so that it is possible to cope with these situations

4 are needed per wheel motor

part numbers:

Låsring 8mm äldre motorer Husqvarna Automower 320 330X 420 430X 435X 440 450X 520 550320 330X 420 430X 435X 440 450X 520 550 Identical to the one foundLocking ring 8mm for wheel axle to wheel motor. Installed between wheel bearing and seal. Thickness: 0. 8mmFits all wheel motors except the newest motors that came in 2020 for large machines (metal motor mount) as well as small motors where the bearing housing is in plastic, e. g. newer 415X, Gardena Sileno and so on