A support structure includes a nose arranged to fit within a cavity of the wear member. The nose may include a front portion having a plurality of outwardly facing surfaces that may be angled with respect to a longitudinal axis of the nose at a first angle. The nose may also include a rear portion having two horizontally separated outwardly facing surfaces and two vertically separated outwardly facing surfaces. The horizontally separated outwardly facing surfaces and the vertically separated outwardly facing surfaces may be angled with respect to the longitudinal axis at a second angle that is different than the first angle. A first concave surface and a second concave surface may each be positioned on one of the vertically separated outwardly facing surfaces, may be disposed only in the rear portion and may be shaped to form an arc. A through-hole may extend between the two horizontally separated outwardly facing surfaces. Each hole of the pair of holes may be arranged to receive a locking pin, and the first and second concave surfaces may be positioned at least partially rearward of the pair of holes.

A wing shroud has a body including a side portion having a side inner surface, a side abutment surface, a side outer surface, and a side rear surface, a floor portion having a floor upper surface, a floor lower surface, a floor front surface, a floor outer surface, and a floor rear surface, and an attachment recess defined by a plurality of inward surfaces on the side and floor portions. The body also has a leading edge extending between the side inner surface, the side outer surface, the floor front surface, the floor upper surface, and the floor outer surface, and including an upper end, a transition portion, a lower curved portion, and a lower end.

A wear member includes a front end and a rearward end, the rearward end having a cavity formed therein. The cavity may include a forward portion, a rear portion, and an intermediate portion. The forward portion may be disposed toward the front end and the rear portion may be disposed toward the rearward end. Each of the rear portion and the forward portion may include at least four surfaces. Each of the four surfaces of the rear portion may converge toward a longitudinal axis of the wear member at a first converging angle, and each of the four surfaces of the forward portion may converge toward the longitudinal axis of the wear member at a second converging angle. The intermediate portion may extend between the forward portion and the rear portion and may include a different number of surfaces in cross-section than the forward portion and the rear portion.

A retractable tooth bucket configured to provide both digging and grading functionality on a worksite. The retractable tooth bucket has a bucket joined to a first bracket and a second bracket. A first pivot frame joined to the first bracket. A second pivot frame is joined to the second bracket. A first and second mounting brackets are joined to the bucket. A cylinder is joined to the hydraulic ram, and the first and second pivot frames. A hydraulic fluid line is joined to the hydraulic ram. Three cross members are joined to the first and second pivot frames. Five spines are joined to the third cross member and arranged against a pivot pin. Engaging the hydraulic ram causes spines to extend away from the bucket.

A wear part, a bucket, bucket system and a method for attaching the wear part to the bucket are provided. The wear part includes a forward edge for intruding into a material to be handled by the bucket, and an engagement portion for engaging with an engagement edge of the bucket. The engagement portion has a concave cross section. A lever element extends from a side of the engagement portion in a direction backwards from the forward edge, and a fastening unit is arranged in a distal end of the lever element. The bucket has a plate hole arranged behind a bucket threshold in relation to an engagement edge for receiving a fastening element for fastening the wear part to the bucket.

Mineral bits (10, 100) and associated mounts (30, 116, 200) for use during excavation and mining operations are disclosed. An exemplary bit (10) has a front region (12) and an opposite rear region (14) and comprises a head portion (16) and a mounting portion (18) secured to the head portion (16). The mounting portion (18) can be configured to be releasably retained by a mount (30). A rounded transition (22) disposed in the front region (12) of the bit between the head portion (16) and the mounting portion (18) provides a clearance (C) between the head portion (16) and the mount (16). Mineral bits (10, 100) disclosed can be inserted into and withdrawn from mounts (30, 1 16, 200) by linear and/or rotational movement.

A wear member may include a front end and a rear end and a longitudinal axis extending therethrough. The rear end may have a cavity formed therein with a rear portion and a forward portion. The cavity may have two horizontal surfaces in cross-section and converging toward the longitudinal axis. The cavity may have four substantially planar surfaces that are oblique in cross-section. A first two of the four substantially planar surfaces may be disposed on a first lateral side of the two horizontal surfaces, and a second two of the four substantially planar surfaces may disposed on a second lateral side of the two horizontal surfaces. An intermediate portion may be disposed between the rear portion and the forward portion, with the intermediate portion comprising a different number of surfaces in cross-section than a number of surfaces of the rear portion and the forward portion in cross-section.

A base for forming a tooth for a wheel of a landfill compactor vehicle is disclosed. The tooth comprises said base and a cap of a cast metal material formed on said base. The base comprises a block, a core and a lip. The block is adapted to be mounted on said landfill compactor vehicle wheel. The core, which is disposed on a cap-facing side of the base, is for receiving molten metal material during a casting operation and remains embedded in the cap. The lip is disposed around a periphery of the base and is also for receiving said molten metal material, in cooperation with the core. The lip at least partially surrounds the cap-facing side and the core and helps in reducing or preventing imperfections, such as cracks, which could otherwise form at the interface between the base and the cap following the casting operation.

An edge wear protector system adapted to be attached to a plate of a bucket is provided. Edge wear protector system includes a first side member having a proximal end and a distal end opposite the proximal end, the first side member adapted to be attached to one side of the plate, a second side member having a near end and a far end opposite the near end, the second side member adapted to be attached to another side of the plate, the another side of the plate being opposite the one side of the plate, an end member adapted to be attached to an edge of the plate, the edge of the plate extends from the one side to the another side of the plate, such that the first side member is attachable to the end member via its proximal end and the second side member is attachable to the end member via the near end.

A hollow ground-engaging wear member includes a leading end arranged to engage ground and a rear end having a cavity formed therein. The inner surface of the cavity may have vertically separated opposing inner walls forming an upper inner surface and a lower inner surface. The upper inner surface and the lower inner surface each may have a centrally disposed, inwardly protruding surface portion arranged to provide a bearing fit with a support structure. Each inwardly protruding surface portion may be disposed only in the rear portion of the cavity and shaped to form an arc. Each hole of a pair of holes in the respective horizontally separated opposing inner walls are arranged to receive a locking pin, and the inwardly protruding bearing surface of the upper inner surface and the inwardly protruding bearing surface of the lower inner surface may be positioned at least partially rearward of the pair of holes.