A bogie for a forestry vehicle is disclosed that includes a bogie body, which has a first wheel hub for arrangement of a first wheel and a second wheel hub for arrangement of a second wheel. The bogie includes a swing arm pivotably hinged at a first end portion on the bogie body, and at a second end portion has a wheel hub for arrangement of a center wheel between the first wheel and the second wheel. The bogie further includes a spring and/or damper element, which at one end portion is hinged on the bogie body and at the other end portion is hinged on the second end portion of the swing arm and by means of which the swing arm is capable of being applied with force. A vehicle, in particular a forestry vehicle, is also disclosed having at least one bogie axle with such a bogie.

A bogie for a forestry vehicle is disclosed that includes a bogie body, which has a first wheel hub for arrangement of a first wheel and a second wheel hub for arrangement of a second wheel. The bogie includes a swing arm pivotably hinged at a first end portion on the bogie body, and at a second end portion has a wheel hub for arrangement of a center wheel between the first wheel and the second wheel. The bogie further includes a spring and/or damper element, which at one end portion is hinged on the bogie body and at the other end portion is hinged on the second end portion of the swing arm and by means of which the swing arm is capable of being applied with force. A vehicle, in particular a forestry vehicle, is also disclosed having at least one bogie axle with such a bogie.

Provided is a running device including a frame (11) and a first wheel part (15) and a second wheel part (35) arranged with an appropriate distance therebetween along a running direction (R). The first wheel part (15) includes a first left support arm (17) and a first right support arm (26) arranged on the frame (11) in a manner to be swingable within a plane extending along the running direction (R). The second wheel part (35) includes a second support arm (36) arranged on the frame (11) in a manner to be swingable within a plane perpendicular to the running direction (R). The first left support arm (17) has first left wheels (19, 21) respectively on both sides thereof, and the first right support arm (26) has first right wheels (28, 30) respectively on both sides thereof. The second support arm (36) has a second left wheel (38) and a second right wheel (40) respectively on both sides thereof.

Systems and apparatuses include a tag axle system including an axle assembly, a linkage coupling the axle assembly to a vehicle chassis, and a hydraulic cylinder coupled between the vehicle chassis and the axle assembly. The hydraulic cylinder actuates the axle assembly between a raised position and a lowered position, and acts as a spring damper suspension component.

Systems and apparatuses include a tag axle system including an axle assembly, a linkage coupling the axle assembly to a vehicle chassis, and a hydraulic cylinder coupled between the vehicle chassis and the axle assembly. The hydraulic cylinder actuates the axle assembly between a raised position and a lowered position, and acts as a spring damper suspension component.

A center link has a bolt portion contact pad extending longitudinally and transversely from the bolt portion, forming a bolt portion contact surface extending transversely, and defining a bolt portion contact surface transverse width that is less than the shaft portion transverse width. The center link also has a mushroom head portion contact pad extending longitudinally and transversely from the mushroom head portion, forming a mushroom head portion contact surface, and defining a mushroom head portion contact surface transverse width that is less than the shaft portion transverse width.

A three-row wheel vehicle having front, center and rear wheels has laterally spaced leading arms each pivotably connected to a vehicle body, laterally spaced swing arms each connected to the front end of the leading arm swingably in the front and rear direction and rotatably supporting the front wheel at the lower end, and laterally spaced connecting links each attached at one end to the swing arm pivotably around an axis and attached at the other end to the vehicle body pivotably around another axis; heights of the axes are different when the vehicle is on a horizontal flat traveling road; and each connecting link is arranged to apply a reaction force including an upward component to the swing arm when a rearward force acts from the front wheel to the one end via the swing arm.

Disclosed is a vehicular suspension control assembly and a kit of parts therefore configured to connect to opposite ends of a vehicle axle housing and to opposite sides of the vehicle. The assembly includes a control module configured to connect to the opposite ends of the vehicle axle housing and a frame module configured to connect to the opposite sides of the vehicle. The control and frame modules are interconnected with pivot control members to allow both modules to keep equal weight on the rear wheels during vehicle cornering. The control module has a straight pivot link connected to one side of the axle housing and an interconnected asymmetrical pivot link connected to the other side of the axle housing. When cornering, additional weight is applied to one side of the axle housing. In response, the pivot links of the control assembly transfer weight to the other side of the housing, to keep equal weight on the rear wheels.

A suspension system for a dual-axle wheels assembly, including a sub-frame, a first arm connected to the sub-frame and rotatable with respect to the sub-frame about a first axis, a first connector connected to the first arm and having a first connector axis about which a first wheel rotates when connected to the first connector, the first connector axis is parallel to the first axis, a second arm connected to the sub-frame and rotatable with respect to the sub-frame about a second axis that is parallel to the first axis, a second connector connected to the second arm and having a second connector axis about which a second wheel rotates when connected to the second connector, the second connector axis is parallel to the second axis, and a motion restrainer comprising a spring and a damper and interconnecting the first arm and the second ram.

A suspension system for a dual-axle wheels assembly, including a sub-frame, a first arm connected to the sub-frame and rotatable with respect to the sub-frame about a first axis, a first connector connected to the first arm and having a first connector axis about which a first wheel rotates when connected to the first connector, the first connector axis is parallel to the first axis, a second arm connected to the sub-frame and rotatable with respect to the sub-frame about a second axis that is parallel to the first axis, a second connector connected to the second arm and having a second connector axis about which a second wheel rotates when connected to the second connector, the second connector axis is parallel to the second axis, and a motion restrainer comprising a spring and a damper and interconnecting the first arm and the second ram.