Abstract: The stay member for a tire chain has a base member including a base portion and a wear portion. The base member has a longitudinal center plane. The base member has at least one connecting opening for receiving connecting members of the tire chain. The base portion includes a tire contact surface opposite the wear portion. The wear portion projects at least partly laterally past the base portion and has a wear surface and lateral surfaces. The wear surface includes grooves extending perpendicularly to the longitudinal center plane. The lateral surfaces extend at such an angle to one another that ring members received in neighboring ones of the stay members are spaced from one another when the stay members touch one another.

Abstract: The undercarriage assembly includes a roller frame and a pair of wheels held in spaced apart relation by the roller frame. An endless track belt is entrained about the pair of wheels. A bogie arm is pivotally connected to the roller frame at a pivot axis. The bogie arm includes a roller arranged and configured for supporting the track belt between the wheels. The undercarriage assembly also includes an elastomeric bearing positioned about the pivot axis of the bogie arm for reducing shock loads applied to the bogie arm. The elastomeric bearing can be arranged and configured to bias the bogie arm toward the track belt via torsion.