Abstract: A cooling arrangement for a computer system includes a chassis, a circuit board arranged in the chassis, a fan, and at least one element to be cooled and arranged on the circuit board in an area to be cooled between the fan and a panel of the chassis, wherein an air deflector is arranged between the at least one element to be cooled and the panel of the chassis such that air flowing out of the fan in a direction of the at least one element to be cooled encounters the air deflector and is swirled in the area to be cooled.

Abstract: In a crawler belt coupling apparatus, a first crawler belt link has a first through hole, and a first cutout in an inner circumferential surface of a first through hole. A master pin is inserted in the first through hole of the first crawler belt link, and has a second cutout in an outer circumferential surface thereof. A first recess is constructed of the first cutout and the second cutout, and has an opening at an end portion of the first through hole. A first knock pin is disposed such that one end surface thereof faces the opening. A first snap ring has a C-like shape, and is disposed to be separated from the one end surface of the first knock pin with a space therebetween or disposed in abutment with the one end surface.

Abstract: A pin joint assembly including a pin defining a longitudinal axis and having an end portion, a bushing coaxial with the pin about the longitudinal axis and having an end portion, and a collar engaging the end portion of the pin and having an inner portion in proximal relation to the end portion of the bushing and an outer portion in distal relation to the end portion of the bushing. The end portion of the bushing, the inner portion of the collar, and the pin cooperate to define a channel. The pin joint assembly further includes a thrust ring coaxial with the pin about the longitudinal axis and residing in the channel in spaced-apart relation to the bushing.

Abstract: A bushing for use in a tracked undercarriage of a track-type machine includes a first end and a second end disposed opposite the first end. An outer surface extends between the first end and the second end and is shaped to engage a sprocket of the tracked undercarriage. The bushing also includes an annular inner surface disposed between the first end and the second end defining an internal cavity shaped to receive a track pin. An innermost portion of the inner surface forms a crown having a radius less than or equal to (PL2)/[(24E?DRBush4)(1?cos [(PL)/(16E?DRBush4))] where L is the length of the bushing, P is the weight of the track-type machine, E is the Modulus of Elasticity of the bushing, and RBush is a radius of the innermost portion of the annular internal cavity.

Abstract: An improved strength track bushing (150) is disclosed. The bushing (150) may be used as a bearing around a track pin (144) interconnecting shoes (132) of a track (120) on a track-type tractor (100). The bushing (150) may include a hollow cylindrical wall (163) having an inner diameter (166), an outer diameter (176), and an annular lubrication cavity (164) circumnavigating the inner diameter (166) of the hollow cylindrical wall (163). The bushing (150) includes specific dimensional ratios between the width (174) of the cylindrical wall (163), the size of the inner diameter (166), the size of the outer diameter (176), the width (170) of the annular cavity (164), and the depth (172) of the annular cavity (164). By appropriately sizing such dimensions, the strength of the bushing and thus its ability to avoid cracking in use is greatly improved.

Abstract: An endless track chairs for use with a track-type vehicle comprises a cartridge joined to the links of first and second link sets for relative rotation between the link sets.

Abstract: A pin assembly suitable for mounting a track roller bogie on a track frame of a crawler type traveling apparatus includes first to third rings disposed on an outer peripheral surface of a pin having lubricant supply passages. Seals are disposed between end faces of the respective rings and end faces other than those of the seals are formed in slide contact faces, which slidably direct contact with each other. As compared with a conventional case in which spacers are installed between the first to third rings, the total wear amount of the slide contact faces is remarkably reduced, the number of parts is reduced by abolishing the conventional spacers which caused defective lubrication, and a load between the rings in a thrust direction is directly received between the rings. As a result, the troublesomeness of an assembly of track roller bogie and a reduction in service life due to defective lubrication can be eliminated.

Abstract: An improved articulated pin joint for a track chain used on track laying work machines is provided. The articulated pin joint includes a plug positioned in a central cavity of a track pin. The plug includes an axial passage in which a needle can be inserted to inject grease into the central cavity. The invention facilitates replenishing grease in the field without removing the track chain from the track laying work machine.

Abstract: A cartridge assembly for a track chain assembly is provided. The cartridge assembly includes a bushing rotatably positioned about a track pin. Bearing members are positioned about the track pin adjacent the bushing. Collars are positioned about the track pin adjacent the bearing members. Seal arrangements are positioned between the collars and the bearing members and between the bearing members and the track bushing sealably excluding contaminants and the retention of a lubricating fluid from a passage in the bushing and a bore within the track pin.

Abstract: As well as a torsional rigidity of right and left crawler links is secured, a seal is prevented from damaging so as to restrict a leakage of a lubricating oil, so that a durability of a crawler device is improved.