A work vehicle includes: a wheel support member configured to support a pair of left and right traveling wheels; a link mechanism configured to support the wheel support member such that the wheel support member can be raised and lowered, the link mechanism being provided spanning between a vehicle body and the wheel support member; a suspension mechanism configured to elastically support the wheel support member, the suspension mechanism being provided spanning between a suspension support portion, which is formed on the vehicle body, and the wheel support member; and a lateral link configured to restrict leftward and rightward movement of the wheel support member, the lateral link being joined to a vehicle body-side support portion, which is formed on the vehicle body, and to a wheel-side support portion, which is formed on the wheel support member, wherein the link mechanism has: an upper link with an front end portion supported so as to be able to pivot up and down around an upper pivot axis by a link support portion, which is formed on the vehicle body, and with a rear end portion joined so as to be able to relatively pivot around an upper joint axis by the wheel support member; and a lower link with a front end portion supported so as to be able to pivot up and down around a lower pivot axis by the link support portion, and with a rear end portion joined to the wheel support member so as to be able to relatively pivot around a lower joint axis, a distance between the upper pivot axis and the upper joint axis is set shorter than a distance between the lower pivot axis and the lower joint axis, a gap width between the upper joint axis and the lower joint axis is set larger than a gap width between the upper pivot axis and the lower pivot axis, and when the vehicle body is in an unloaded state, the lower joint axis is located lower than the lower pivot axis.

An alignment assembly for a motor vehicle includes a first bushing with a slot, the first bushing being configured to be positioned and secured to an end of a first link of a wishbone suspension assembly, and an insert that fits within the slot, the insert having a locating hole that positions a bolt within the slot for nominal caster and camber angles.

A track system for use with a towed vehicle has an attachment assembly and a multi-member frame assembly. The multi-member frame assembly includes a primary frame member connected to the attachment assembly, at least one wheel-bearing frame member pivotably connected to the primary frame member about a pivot located within a recess, and at least one resilient bushing assembly located within the recess and engaging the pivot. The at least one bushing assembly is resiliently deformable in a circumferential direction to permit pivoting of the pivot with respect to the recess, and is fixedly connected within the recess to resiliently bias the pivot towards a rest position with respect to the recess. The track system further includes leading and trailing idler wheel assemblies rotatably connected to the at least one wheel-bearing frame member, and an endless track.

A rear axle suspension includes a holder for pivotable connection of a connecting portion of a semirigid axle to a vehicle superstructure The holder is stationary relative to the vehicle superstructure and has a first and a second holding arrangement for an axle pin. The first and second holding arrangements are arranged on both sides of the connecting portion along a pin axis. In order to provide an optimized connection of a semirigid axle to a vehicle superstructure, the first holding arrangement has a stabilizing element with an arcuate portion. The arcuate portion, in the direction of the pin axis and tangentially, extends at least partially around the pin axis. The axle pin is mounted in the arcuate portion. Fixing portions are adjacent the arcuate portion on both sides and attach the stabilizing element to the vehicle superstructure.

A work vehicle includes: a wheel support member configured to support a pair of left and right traveling wheels; a link mechanism configured to support the wheel support member such that the wheel support member can be raised and lowered, the link mechanism being provided spanning between a vehicle body and the wheel support member; a suspension mechanism configured to elastically support the wheel support member, the suspension mechanism being provided spanning between a suspension support portion, which is formed on the vehicle body, and the wheel support member; and a lateral link configured to restrict leftward and rightward movement of the wheel support member, the lateral link being joined to a vehicle body-side support portion, which is formed on the vehicle body, and to a wheel-side support portion, which is formed on the wheel support member, wherein the link mechanism has: an upper link with an front end portion supported so as to be able to pivot up and down around an upper pivot axis by a link support portion, which is formed on the vehicle body, and with a rear end portion joined so as to be able to relatively pivot around an upper joint axis by the wheel support member; and a lower link with a front end portion supported so as to be able to pivot up and down around a lower pivot axis by the link support portion, and with a rear end portion joined to the wheel support member so as to be able to relatively pivot around a lower joint axis, a distance between the upper pivot axis and the upper joint axis is set shorter than a distance between the lower pivot axis and the lower joint axis, a gap width between the upper joint axis and the lower joint axis is set larger than a gap width between the upper pivot axis and the lower pivot axis, and when the vehicle body is in an unloaded state, the lower joint axis is located lower than the lower pivot axis.

A flexible joint for attachment to a suspension link. The flexible joint includes a housing. The housing includes an external surface and an internal surface. The flexible joint also includes a flexible joint insert. The flexible joint insert includes an inner sleeve. The inner sleeve includes a channel, where the channel is configured to receive at least a portion of an external device, and an external surface. The flexible joint insert also includes an inner elastomer. The inner elastomer is fused to at least a portion of the external surface of the inner sleeve. The flexible joint insert further includes an outer elastomer. The outer elastomer is harder than the inner elastomer. An interface between the inner elastomer and the outer elastomer is fused and a portion of the outer elastomer is in contact with the internal surface of the housing. The outer elastomer is not permanently attached to the housing.

The suspension system may include an axle operably coupled to a frame of the vehicle, an electric motor operably coupled to the axle to propel the vehicle, one or more wheels operably coupled to the axle, at least one vertical damper extending substantially perpendicular to a driving surface and operably coupled to the frame and the axle, and a horizontal damper extending substantially parallel to the driving surface. A first distal end of the horizontal damper may operably couple to the frame, and a second distal end of the horizontal damper may operably couple to the electric motor.

A pin bush for connecting linkages, comprising: a spheroid member; a metal pin for connecting the pin bush to a linkage, the metal pin extending through the spheroid member forming together a spheroid pin member; a metal sleeve enclosing the spheroid pin member; and a rubber lining arranged between the metal sleeve and the spheroid pin member, the rubber lining being configured to reduce vibrational energy transfer between the metal sleeve and the spheroid pin member, wherein the spheroid member is a plastic member.

A suspension device includes a lower arm connected to a wheel carrier to be rotatable up and down according to movement of the wheel carrier, a frame part connected to the lower arm to receive the movement of the wheel carrier, and a restraint part disposed on the frame part to restrain a rotation range of the lower arm.