A spindle reconditioning system includes an axle that is mounted on a vehicle. The axle has a spindle and the spindle has a distal end with respect to the axle and a bearing surface. A mount is provided and the mount slidably receives the spindle and engages the distal end of the spindle. Thus, the mount is oriented co-linear with a line extending through the distal end of the spindle and the axle. A grinding unit is movably coupled to the mount and the grinding unit is aligned with the bearing surface on the spindle when the mount is positioned on the spindle. The grinding unit abrades the bearing surface for reconditioning the bearing surface when damage on the bearing surface has been repaired thereby eliminating the need to replace the spindle when the spindle is damaged.

A rotating tool includes a tool body including a polishing tool and a shank, and a flange part provided in the tool body. The polishing tool includes a plurality of linear grinding members and a grinding member holder to hold the linear grinding members. The flange part is an annular member, and attached to the grinding member holder, so as to be movable in the direction of an axial line and rotatable about the axial line. When the inner circumferential surface of a hole formed in a workpiece is processed, the grinding member holder and the annular member are inserted into the hole. When run-out on the front side of the rotating tool occurs, the annular member comes into contact with the peripheral wall surface of the hole, whereby the run-out of the tool body is reduced.

A rotating tool includes a tool body including a polishing tool and a shank, and a flange part provided in the tool body. The polishing tool includes a plurality of linear grinding members and a grinding member holder to hold the linear grinding members. The flange part is an annular member, and attached to the grinding member holder, so as to be movable in the direction of an axial line and rotatable about the axial line. When the inner circumferential surface of a hole formed in a workpiece is processed, the grinding member holder and the annular member are inserted into the hole. When run-out on the front side of the rotating tool occurs, the annular member comes into contact with the peripheral wall surface of the hole, whereby the run-out of the tool body is reduced.

A rock sanding device includes a base, a bottom sanding plate, an adjustable connecting rod, an elastic loader, a connector, a side sanding brush, a top sanding plate, an inner rod, a prong and a drill rod. The top of the drill rod is fixedly connected with the rotating shaft of the external water drilling rig and the external water drilling rig has a water inlet joint to introduce water into the drill rod. The inner rod and drill rod are connected and fixed coaxially, and the bottom of the drill rod is symmetrically welded with four prongs. The rock specimen is placed in the center of the side sanding brush. The top sanding plate and the bottom sanding plate are provided in the top side and bottom side of the rock specimen, respectively.

A method for preparing a polymer insulated cable including a semiconductive layer surrounding a polymeric insulation layer includes: cutting the semiconductive layer by grinding a circumferential dividing groove in the semiconductive layer using a rotating grinding surface, wherein the dividing groove defines first and second semiconductive sections of the semiconductive layer on opposed sides of the dividing groove; and thereafter removing the second semiconductive section from the polymeric insulation layer while retaining the first semiconductive section on the polymeric insulation layer.

A method for preparing a polymer insulated cable including a semiconductive layer surrounding a polymeric insulation layer includes: cutting the semiconductive layer by grinding a circumferential dividing groove in the semiconductive layer using a rotating grinding surface, wherein the dividing groove defines first and second semiconductive sections of the semiconductive layer on opposed sides of the dividing groove; and thereafter removing the second semiconductive section from the polymeric insulation layer while retaining the first semiconductive section on the polymeric insulation layer.

A device is adapted to be coupled to a conveyor system and recondition at least one chain of the conveyor system. The device includes a base and at least one attachment element coupled to the base. The attachment element is adapted to detachably couple the device to the conveyor system. At least one reconditioning element is coupled to the base, and the reconditioning element is adapted to engage and recondition the chain as the chain moves relative to the reconditioning element. At least one biasing element is coupled to the reconditioning element, and the biasing element urges the reconditioning element away from the base and into engagement with the chain.

A device is adapted to be coupled to a conveyor system and recondition at least one chain of the conveyor system. The device includes a base and at least one attachment element coupled to the base. The attachment element is adapted to detachably couple the device to the conveyor system. At least one reconditioning element is coupled to the base, and the reconditioning element is adapted to engage and recondition the chain as the chain moves relative to the reconditioning element. At least one biasing element is coupled to the reconditioning element, and the biasing element urges the reconditioning element away from the base and into engagement with the chain.

A grinding device of a travel path, on which traveling wheels of a rail-type vehicle roll, includes a grinder which grinds a surface layer of a travel path, a frame on which the grinder is provided, and a device traveling wheel mounted on the frame. The device traveling wheel rolls along the travel path on the top surface of the standard rail extending in the extending direction of the travel path.

A grinding device of a travel path, on which traveling wheels of a rail-type vehicle roll, includes a grinder which grinds a surface layer of a travel path, a frame on which the grinder is provided, and a device traveling wheel mounted on the frame. The device traveling wheel rolls along the travel path on the top surface of the standard rail extending in the extending direction of the travel path.