A power tool includes a tool head having a working element and a powerhead configured to provide power to the working element. The powerhead includes a fluid tank configured to hold a combustible fuel and defines an initial internal volume having an internal pressure. A diaphragm is formed of a flexible material and forms at least a portion of the fluid tank. The diaphragm moves from an unexpanded state to an expanded state when a temperature of the combustible fuel increases above a threshold value. Movement of the diaphragm to the expanded state increases the internal volume of the fluid tank to allow the internal pressure of the fluid tank to remain approximately constant.

A wire lubrication applicator has: a cylindrical body with opposed open axial ends along a wire travel axis, the cylindrical body formed of inner and outer hollow tubes that each define a longitudinal wire insertion slot extending between the opposed open axial ends, with the inner and outer hollow tubes being coaxially mounted to rotate relative to one another about the wire travel axis to align and misalign the longitudinal wire insertion slots to open and close, respectively, a lateral wire entry into a lubricant retaining interior of the inner hollow tube; and one or more end caps that are on the cylindrical body and each form an axial wire opening. One or more of the axial wire openings are biased to radially constrict about a wire in use.

A wire lubrication applicator has: a cylindrical body with opposed open axial ends along a wire travel axis, the cylindrical body formed of inner and outer hollow tubes that each define a longitudinal wire insertion slot extending between the opposed open axial ends, with the inner and outer hollow tubes being coaxially mounted to rotate relative to one another about the wire travel axis to align and misalign the longitudinal wire insertion slots to open and close, respectively, a lateral wire entry into a lubricant retaining interior of the inner hollow tube; and one or more end caps that are on the cylindrical body and each form an axial wire opening. One or more of the axial wire openings are biased to radially constrict about a wire in use.

An oil supply structure which supplies lubricating oil to a portion to be lubricated in a casing, the oil supply structure comprises an opening portion provided on a wall portion of the casing which corresponds to a shaft end portion of a rotary shaft supported by a bearing in the casing, and an oil passage configured to provide communication from the opening portion to at least the bearing.

An oil supply structure which supplies lubricating oil to a portion to be lubricated in a casing, the oil supply structure comprises an opening portion provided on a wall portion of the casing which corresponds to a shaft end portion of a rotary shaft supported by a bearing in the casing, and an oil passage configured to provide communication from the opening portion to at least the bearing.

The work equipment for the motor grader includes: a drawbar having a drawbar plate; a bearing having an outer ring and inner ring, the outer ring being fixed to a lower surface of the drawbar plate and the inner ring, disposed inside the outer ring ring; a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction; a blade supported by the circle; a peripheral-direction pipe extending in the peripheral direction of the outer ring along a peripheral surface of the outer ring and connected to an end portion of an outer peripheral side of the plurality of lubricant supply holes; and the lubricant inlet port connected to the peripheral-direction pipe and capable of introducing a lubricant oil from an outside.

The work equipment for the motor grader includes: a drawbar having a drawbar plate; a bearing having an outer ring and inner ring, the outer ring being fixed to a lower surface of the drawbar plate and the inner ring, disposed inside the outer ring ring; a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction; a blade supported by the circle; a peripheral-direction pipe extending in the peripheral direction of the outer ring along a peripheral surface of the outer ring and connected to an end portion of an outer peripheral side of the plurality of lubricant supply holes; and the lubricant inlet port connected to the peripheral-direction pipe and capable of introducing a lubricant oil from an outside.

The invention relates to a method for lubricating a component consisting of a hydrophilic compound crosslinked by means of a water-soluble transition metal chelate.

A pump includes an external gear, an internal gear surrounding the external gear to mesh with the external gear, a pump chamber to house the internal gear and the external gear, a suction inlet to suck an oil into the pump chamber, and a discharge outlet to discharge the oil from inside the pump chamber. The housing includes an outer cover having the pump chamber defined therein, and a first oil passage defined in the outer cover and connected to the discharge outlet. The motor shaft includes a second oil passage connected to the first oil passage, and a first through hole to connect the second oil passage to the motor shaft. The second oil passage opens into the first oil passage at the end portion of the motor shaft.

An arrangement in an articulated joint of a work machine wherein at least two machine parts are rotatably fastened to each other with a conical sleeve shaft joint in which a conical sleeve is pressed against a conical sleeve shaft by an intermediate plate. This intermediate plate includes members for receiving a channel and for connecting the channel to a lubrication channel. The members are formed on the intermediate plate's outer casing which connects a counter-surface to a pressing surface on the side of the conical sleeve to provide a continuous passage for the conical sleeve shaft of the articulated joint.