Abstract: The invention is directed to a composite material comprising a biofabricated material and a secondary component. The secondary component may be a porous material, such as a sheet of paper, cellulose, or fabric that has been coated or otherwise contacted with the biofabricated material. The biofabricated material comprises a uniform network of crosslinked collagen fibrilsand provides strength, elasticity and an aesthetic appearance to the composite material.

Abstract: A method of installing a cable through a duct by blowing the cable with a stream of compressed air. The method comprises dispersing a nebulized lubricant in the stream of compressed air, causing the stream of compressed air to deposit the nebulized lubricant onto the cable and to blow it into the duct. An apparatus for carrying out the method is also disclosed.

Abstract: A pressurized lubrication system for turbomachinery includes a gravity rundown lubrication tank raised vertically above a turbomachinery train. The gravity rundown tank is typically designed to provide emergency fluid lubrication during shutdown if the main and standby lubrication pumps fail to operate. This invention describes a gravity rundown tank with additional novel function of providing higher pressure Accumulator action lubrication fluid to delay and prevent a shutdown trip of the turbomachinery. The gravity rundown tank with novel features can be a single tank with multiple functions, or a plurality of tanks utilizing gravity pressure to ensure emergency lubrication at rundown, and providing accumulator action delay pressure and flow when switching from main to standby lubrication pumps. This improvement in the state of the art leads to eliminating the need for conventional equipment such as Accumulators thus providing higher lubrication system reliability and minimizing cost and complexity.

Abstract: A gear shroud arrangement includes a plate defining an aperture therethrough. A riser tube has a first end and an opposed second end. The first end of the riser tube is connected to the plate and is aligned with the aperture. A mounting flange extends from the second end of the riser tube. A shroud member extends from the plate in a direction opposite the riser tube.

Abstract: A deflector for the fairing of a pinion, which includes a teething, a barrel and a wall positioned between the teething and the barrel, the deflector extending around an axis and including an envelope of which the shape and the dimensions are suited to surrounding at least one part of the teething of the pinion, the deflector including an oil injection circuit including a first portion provided on an outer surface of the envelope, a first injection hole provided in the envelope and communicating with the first portion of the oil injection circuit, the first injection hole emerging on an inner surface of the envelope so as to inject oil in the direction of the pinion, a second portion communicating with the first portion, the second portion including a second injection hole intended to be facing the inside of the barrel of the pinion.

Abstract: A method of operating a lubrication system for a gas turbine engine includes pumping a lubricant from a supply conduit to a bearing compartment. A pressure differential in the bearing compartment. The supply conduit is evacuated in response to the pressure differential creating step. The supply conduit is refilled with the lubricant from a reservoir conduit fluidly joined to the supply conduit at a junction by gravitationally draining the reservoir conduit.

Abstract: Provided is a lubricating fluid supply structure of a power transmission device capable of stably supplying a lubricating fluid to a built-in part to which the lubricating fluid is supplied with a high priority. A supply pipe (64a) includes a first main pipe line (L1) connected to a priority part, a second main pipe line (L2) connected to a non-priority part, and an intermediate pipe line (LM) connecting the first main pipe line (L1) and the second main pipe line (L2) to each other. A first height (H1) of a connection part of the first main pipe line (L1) connected to the intermediate pipe line (LM) is lower than a second height (H2) located at the highest position in a flow path bottom surface of the intermediate pipe line (LM).

Abstract: A spur gear transmission has at least two meshing, toothed spur gears. A covering wall surrounds the spur gears circumferentially and in the direction of their rotational axes. The covering wall has an inner contour adapted to the outer diameters of the spur gears. Two annular gaps which transition into each other are formed between the covering wall and the spur gears. The annular gap is substantially concentric to a rotational axis. The covering wall surrounds the two spur gears circumferentially only over a part of the circumference, with a part of the outer circumference of the two spur gears or one of the two spur gears protruding outwards out of the covering wall. The part of the two spur gears or of the one spur gear that protrudes out of the covering wall is positioned on the lower face of the spur gears.

Abstract: A heat transfer system for a vehicle including an axle assembly having a carrier housing. A sump defined by the carrier housing contains a fluid lubricant. The heat transfer system further includes a heat exchanger having one or more electrically conductive elements. The electrically conductive elements are at least partially disposed within the carrier housing. Additionally, an electrical power source is in electrical connection with the heat exchanger.

Abstract: A vortex control device for modifying a vortex in a fluid stemming from a wall is disclosed. The device includes a rotatable hub disposed within an opening in the wall. The device also includes an inlet port and an outlet port in the rotatable hub. The inlet port forms a suction port to suction fluid from or about the vortex, and the outlet port forms an injection port to inject fluid into or about the vortex.

Abstract: A gas turbine engine includes a bearing compartment that has an inlet. A supply line splits into a supply conduit and a reservoir conduit that are fluidly parallel to one another for a length. The reservoir conduit fluidly rejoins the supply conduit at a junction. The supply conduit is fluidly connected to the inlet, and the reservoir conduit includes a flow restrictor upstream from the junction. A main pump is fluidly connected to the supply line and is configured to supply a lubricant to the bearing compartment through the supply line and supply and reservoir conduits in an operating state. The main pump has a non-operating state in which the reservoir conduit is configured to slowly refill the supply conduit through the flow restrictor.

Abstract: A lubricant composition for engines has at least one base oil and one fatty amine.

Abstract: A fluid wand closure assembly includes a receiving tube with a wand receiving aperture and a predetermined external surface configuration. A wand holder fits within and abuts the receiving tube. A ring is configured to complement the external surface configuration and to abut the wand holder. Tightening the ring against the wand holder causes the ring to abut the wand holder and causes the wand holder to abut the receiving tube and seal the closure.

Abstract: Disclosed herein is a method of using a water-based coolant for quenching or cutting a metal material. The water-based coolant is formed of: water; at least one inorganic acid salt selected from the group consisting of a carbonate, a hydrogen carbonate, a sesquicarbonate, a phosphate, a borate, a molybdate and a tungstate; a metal corrosion inhibitor; and optionally at least one of a bactericide, a water-soluble rust inhibitor, an antioxidant and a detergent dispersant.

Abstract: A planetary gear system is disclosed. The planetary gear system includes a carrier, a planet gear defining a central planet axis, a pin coupling the planet gear to the carrier and a bearing disposed between the planet gear and the pin. The bearing includes a plurality of rolling elements. Each of the rolling elements is in contact with an inner race and an outer race. The planet gear has a formed therein cooling passage for allowing a coolant to pass therethrough to cool the planet gear.

Abstract: A spur gear transmission has at least two meshing, toothed spur gears. A covering wall surrounds the spur gears circumferentially and in the direction of their rotational axes. The covering wall has an inner contour adapted to the outer diameters of the spur gears. Two annular gaps which transition into each other are formed between the covering wall and the spur gears. The annular gap is substantially concentric to a rotational axis. The covering wall surrounds the two spur gears circumferentially only over a part of the circumference, with a part of the outer circumference of the two spur gears or one of the two spur gears protruding outwards out of the covering wall. The part of the two spur gears or of the one spur gear that protrudes out of the covering wall is positioned on the lower face of the spur gears.

Abstract: A pump plunger is disclosed. The plunger may include a proximal end and a distal end opposite the proximal end. The plunger may also include a body portion extending between the proximal end and a second transition datum, and additionally include a transition section extending between a first transition datum and the second transition datum. The transition section may have a non-linear geometric profile. A first shoulder portion may be positioned adjacent to the transition section that may extend between the second transition datum and a third datum. The third datum may be positioned radially inward of the second transition datum. The plunger may also include a tip portion positioned adjacent to the first shoulder portion that may extend between the third datum and a fourth datum positioned at the distal end. The fourth datum may be positioned radially inward of the third datum.

Abstract: A baffle for use with one or both bevel gears in a transmission system is disclosed that can include a rim having a frustoconical shape, multiple pockets on an inner side of the rim configured to collect lubricant, and multiple slots extending through the rim with each slot of the multiple slots being adjacent to a corresponding pocket of the multiple pockets and configured to allow lubricant to flow through the rim. A transmission system is also disclosed that can include a first gear, a second gear, and a baffle surrounding gear teeth of the first or second gear. The baffle has a plurality of pockets adjacent to the gear teeth and a plurality of slots adjacent to the plurality of pockets with the plurality of slots extending through the baffle.

Abstract: A lubrication system for gas turbine engine includes a main lubricant passage for providing lubricant from a lubricant supply to a lubricant manifold. The lubricant manifold includes first and second lubricant passages The lubricant manifold is configured to supply lubricant to first and second separate parts of a geared architecture at different first and second lubricant flow conditions. A first filter element is provided within a radial tube for supplying lubricant to the first passage of the lubricant manifold and a second filter element is provided within a second radial tube for supplying lubricant to the second lubricant passage of the lubricant manifold. The first filter element is different than the second filter element.

Abstract: The present invention relates to a grease application device in which a tip-side inclined surface of a nozzle 28 is made to closely face worm wheel teeth 11 of a shaft-mounted worm wheel 9 while rotating the shaft-mounted worm wheel 9 by means of a drive unit 12. At this state, the grease application device is configured to apply liquid grease from a tip-side opening of the nozzle 28 to the worm wheel teeth 11 of the shaft-mounted worm wheel 9 and to apply the grease while pushing the grease into concave portions of the worm wheel teeth 11. Also, the grease application device is configured to end the application of the grease at a point of time at which the shaft-mounted worm wheel has rotated one revolution with respect to the nozzle 28 after starting the application of the grease to the shaft-mounted worm wheel 9.

Abstract: A substrate cutting system is provided. The substrate cutting system includes a cutting tank, an object stage, a cutter assembly, an injection pump and a drain pump; the injection pump is configured to inject water into the cutting tank, and the drain pump is configured to draw water out from the cutting tank. A flowable water environment is formed in the cutting tank by an action of the injection pump and the drain pump. The object stage is a movable base configured to transport a substrate to be cut to the water environment in the cutting tank. The cutter assembly is configured to cut the substrate.

Abstract: A bent-axis hydrostatic axial piston machine (1) has a drive shaft (4) with a drive flange (3) rotatable around an axis of rotation (Rt) and a cylinder drum (7) rotatable around an axis of rotation (Rz). The cylinder drum (7) has a plurality of piston bores (8) concentric to the axis of rotation (Rz) of the cylinder drum (7) and having longitudinally displaceable pistons (10) fastened in an articulated manner to the drive flange (3). Between the drive shaft (4) and the cylinder drum (7) there is a drive joint (30) (constant velocity joint) for rotationally synchronous rotation of the cylinder drum (7) and the drive shaft (4). The drive joint (30) and the cylinder drum (7) include a longitudinal bore (11) concentric to the axis of rotation (Rz) of the cylinder drum, through which bore (11) the drive shaft (4) extends such that in the vicinity of the drive shaft (4) there is a torque transfer to a cylinder-drum-side end of the axial piston machine (1).

Abstract: A method of producing powder product includes the steps of: Feeding a precursor powder material into a jet mill; feeding a gas into the jet mill to initiate a jet milling operation to produce size-reduced particles; and coating size-reduced particles with oil so that newly exposed surfaces of size-reduced particles are coated with oil, wherein the coating step includes one or more of a post-milling oil injection process and a pre-milling oil injection process.

Abstract: Vacuum insulated glass units having layered pillars. The glass units include two glass panes and an edge seal between the glass panes with a substantial vacuum gap between them. A plurality of pillars are located between the glass panes as spacers to maintain the vacuum gap. The pillars have a sintered ceramic, alpha alumina, or zirconia body with a tapered sidewall and a functional layer on a surface of the body.

Abstract: A sealed dual coaxial rotary shaft feedthrough device is provide. The device includes an inner shaft and a hollow outer shaft that is coaxial to encompass the inner shaft. The shafts include coupled drive and driven shafts. The coupling, which may be referred to as an eccentric coupling, causes the driven shaft to rotate with the drive shaft. The rotation is transmitted without breaking the seal by an eccentric portion of either the drive or driven shaft being nutatingly coupled to either a transition cap or transition cup. Nutatingly coupled means rotation of the shaft causes the transition cap or cup to orbit, but not spin, about the longitudinal axis. The nutation is transmitted by the transition cap or cup to the other of the shafts, which rotates.

Abstract: A circuit breaker according to the present disclosure may include a movable contact configured to be brought into contact with or separated from the stationary contact; and a switching mechanism configured to switch the movable contact, wherein the switching mechanism includes a shaft rotatably installed therein; a transfer link configured to transfer a driving force from the shaft to the movable contact; and a pin configured to hinge-couple the shaft to the transfer link and insulate them from each other, and the pin is installed with a wear resistant member at a portion brought into contact with the shaft.

Abstract: This invention relates to the use of chloro-trifluoropropenes as refrigerants in negative-pressure liquid chillers and methods of replacing an existing refrigerant in a chiller with chloro-trifluoropropenes. The chloro-trifluoropropenes, particularly 1-chloro-3,3,3-trifluoropropene, have high efficiency and unexpectedly high capacity in liquid chiller applications and are useful as more environmentally sustainable refrigerants for such applications, including the replacement of R-123 and R-11.

Abstract: An integrated medical waste management and treatment system may include sensors, interlocks, communications links and/or other features for determining if the waste itself, the decontaminating disinfectant used in the process, or the status of the system are consistent with recommended or authorized system operation. System operation may be terminated if a condition inconsistent with recommended or authorized system operation is detected. Such compliance apparatus may include an electronic scale for determining the weight of the waste loaded into the receiver compartment, a metal detector, or a sensor for determining if the decontaminating disinfectant is a recommended or authorized disinfectant. A communications link may be provided one or more systems to transmit information to a central station to deliver updates or commands associated with the recommended or authorized operation of each system.

Abstract: Disclosed is a power transmission device. A power transmission device according to one embodiment of the present invention includes: a rack having a plurality of rack tooth profiles; a plurality of pin gears, which have a plurality of power transmission pins that rotate relative to the rack tooth profiles for power transmission, and are provided at a distance from each other along the lengthwise direction of the rack; and input gears which are disposed between the pin gears and rotatively connect the plurality of pin gears such that the pin gears rotate at the same speed as each other.

Abstract: The invention relates to a seal between static components of a turbine. The seal includes at least one middle piece, which has at its opposite ends end pieces. The end pieces are arranged in a respective groove of the static components and adjoining the inside surfaces of the grooves. The middle piece has at least two parts. The middle piece parts are rotatably coupled to one another via a pivot. The pivot is an annular ring in cross section formed by at least two cylinder elements being coaxially interfitted and slidable relative to each other. The inner surface of the pivot is wrapped with metallic cloth material. Advantages of the invention are higher flexibility due to the pivoting to accommodate larger relative movements of the turbine components and reduced wear with aging while maintaining good sealing performance.

Abstract: A track member (2) for a track (1) of a vehicle of the tracked type, comprises a pin (3), a bushing (4) associated to the pin (3) and rotatable relative to the pin (3), a first (6?) and a second (6?) inner track link assemblies associated to the pin (3) and rotatable relative to the latter and arranged on two opposite sides of said bushing (4), a first (7?) and a second (7?) outer track link assemblies associated to the pin (3) and rotatingly integral to the latter. The first inner track link assembly (6?) is arranged between the first outer track link assembly (7?) and the bushing (4), and the second inner track link assembly (6?) is arranged between the second outer track link assembly (7?) and the bushing (4). The pin (5) comprises an extended portion (8) defining a first abutting surface (9?) and a second abutting surface (9?) against which the first (6?) and the second (6?) inner track link assemblies respectively abut.

Abstract: A track member for a track of a vehicle of the tracked type, which comprises a pin, a bushing associated with and rotatable relative to the pin, and first and second inner and outer track link assemblies associated with and rotatable relative to the pin, and arranged on opposite sides of the bushing. The first inner track link assembly is arranged between the first outer track link assembly and the bushing, and the second inner track assembly is arranged between the second outer track link assembly and the bushing. The first and second inner track assemblies each include a ring rotatable relative to the pin. The track member further includes first and second inner and outer gasket seats which house respective gaskets. The inner and outer gaskets are orientated so that they act against side surfaces of the rings.

Abstract: Various methods are used to store bedcovers such as thick quilts and comforters when not in use. Previous methods and apparatus for such storage were bulky, not easily adjustable or movable. The present invention, however, provides for a greatly improved method and apparatus that does not interfere with the actual bed structure and is easily movable and adjustable. The present invention describes the methodology utilized to achieve these goals.

Abstract: An internal combustion engine includes: an engine body including: a crankcase for rotatably supporting a crankshaft; and a crankcase cover fastened to the crankcase by a plurality of bolts so as to cover one side of the crankcase; and a stay supporting an oil level gauge guide, the stay being mounted on the engine body, the stay having an opening receiving and supporting a tube or wire.

Abstract: A system for lubricating an engine is disclosed. In one example, the system includes an oil purging passage in fluidic communication with an oil gallery within an engine block. The system may provide for reduced engine degradation related to debris that may be found in engine oil.

Abstract: An architecture is presented that provides a lubricating kit that discloses an easy to follow system of product application. The lubricating kit comprises a lubricating guide and a purpose built case for housing the lubricants. The lubricating guide provides lubrication instructions and identifies each product and surface where each product is applied. The purpose built case comprises all types of industrial lubricants that technicians or other lubricant users may need. The lubricants comprise product labels that follow the lubrication guide. Specifically, the product containers of the lubricating kit are color coded and numbered to correspond with the colors and numbers on the lubricating guide, thus allowing a user to identify a specific product for a specific surface and purpose. Thus, the lubricating guide identifies a surface in need of lubrication, recommends a specific product for the task, and provides basic application directions and durability estimates.

Abstract: The reducer contains a lubricant inside, which is at least partly flowable during the operation, the inside of the reducer being tightly sealed from the outside. The reducer includes a communicating part that communicates the inside and the outside of the reducer. The communicating part is blocked with a blocking member that has oil repellency, air permeability, and non-permeability to oil.

Abstract: Components, turbochargers, and methods of forming components are provided. In an embodiment, by way of example only, a method of forming a component is provided. The method includes applying a plurality of coated particles to a substrate, wherein each coated particle comprises a solid film lubricant particle and a layer surrounding an entire surface of the solid film lubricant particle, each solid film lubricant particle comprises at least one compound, and the layer comprises a coating material having a greater resistance to oxidation than the compound when subjected to a predetermined processing temperature and heating the substrate to the predetermined processing temperature to form a portion of a coating over the substrate.

Abstract: Devices for application of agents to the cutting mechanism of paper shredders are disclosed. Maintenance and lubrication can be performed by applying lubrication agents to the cutting mechanism of a paper shredder without requiring disassembly of the paper shredder. The agents can also include scented agents and decomposing agents or a combination thereof. Lubrication sheets are disclosed for applying agents to the cutting mechanism of paper shredders. A holder is disclosed for retaining lubrication sheets within proximity of a paper shredder. Paper shredders are also disclosed having various means for identifying when lubrication is needed and/or when the cutting mechanism of the paper shredder is lubricated by a lubrication sheet. Paper shredders having a reservoir of lubricant for delivery to the cutting mechanism of the paper shredder are also disclosed. Such reservoirs may be removable. Cap designs allowing use of a removable reservoir with the paper shredders are also disclosed.

Abstract: A fluid reservoir assembly having a pan defining a drain opening and a plug disposed therein is disclosed. The pan includes a pair of ramps disposed on an inner surface thereof adjacent the drain opening. The plug includes a pair of wings in engagement with the ramps. The ramps increase in height relative to the inner surface of the pan along a first direction of rotation about the central axis. The plug is drawn into sealing engagement with an outer surface of the pan by rotating the plug in the first direction of rotation about the central axis thereby moving the wings up the ramps. The pan includes at least one stop to prevent over-rotation of the plug. The ramps define a recess to secure the wings in a closed position.

Abstract: Lubrication substrates are disclosed that have been treated with or that carry a lubricant for maintaining a paper shredder. The lubrication substrate is fed through the shredding mechanism of a paper shredder. Rather than requiring disassembly of the paper shredder, maintenance and lubrication can be performed by passing the lubrication substrate through the shredding mechanism. The lubrication substrates can take any of a variety of forms, and can be substantially rigid and/or stiff. The lubrication substrates can also include scented lubricants and decomposing agents. Paper shredders are also disclosed for use with the lubrication substrates. The paper shredders can have various means for identifying when lubrication is needed and/or when the cutting mechanism of the paper shredder is lubricated by a lubrication sheet. Paper shredders having a reservoir of lubricant for delivery to the cutting mechanism of the paper shredder are also disclosed.

Abstract: A system and method for filling hydrodynamic bearings with fluid are disclosed. The fluid filling system of the present invention includes a fluid storage tank to store fluid therein, a vacuum vessel to receive a hydrodynamic bearing therein, a fluid dispenser for connecting the fluid storage tank to the vacuum vessel and dripping the fluid into a micro-gap of the hydrodynamic bearing, a pump connected both to the fluid storage tank and to the vacuum vessel and separately exhausting air from both the fluid storage tank and the vacuum vessel to the outside, and a nitrogen storage tank for separately controlling pressure in both the fluid storage tank and the vacuum vessel, wherein the fluid storage tank is pressurized using nitrogen such that the pressure in the fluid storage tank becomes higher than the pressure in the vacuum vessel, thus causing the fluid to move to the vacuum vessel and to be dripped into the hydrodynamic bearing received in the vacuum vessel.

Abstract: Self-lubricating fastener devices with interlocking rails or interlocking members of a polymer and a slip system additive with a roughening agent and lubricant dispersed throughout the polymer are provided. Methods for production of self-lubricating fastener devices and their use in liquid-resistant or liquid-proof articles are also provided. A particular advantage is the ability of the devices to repeatedly reestablish a self-lubricated surface, even after solvent cleaning.

Abstract: An aerosol container containing a propellant and a highly hydrogenated mineral oil lubricant for the lubrication of gaskets in pipe segments. Preferred propellants are normally gaseous hydrocarbons. The preferred lubricant is the compound identified by the Chemical Abstracts Registry No. 8042-47-5. Preferred gaskets are those made of SBR, BR, EPM. And EPDM. A preferred actuating valve is an omnidirectional valve.

Abstract: A lubricating oil supply device includes a casing including a cylindrical bore and a guide passage whose one end opens to an inside of the casing and whose the other end opens to the cylindrical bore, a rotational shaft including a center bore, an accommodating groove, and a discharge passage which corresponds to the guide passage and whose one end opens to the accommodating groove and whose the other end opens to the center bore, and a lubricating oil guiding member accommodated within the accommodating groove and including a cylindrical portion, a guide hole, which has a first inner side surface connected to an outer circumferential surface of the cylindrical portion so as to form an angle therebtween and a second inner side surface and which is always connected to the discharge passage, and a guide groove extending along the outer circumferential surface of the lubricating oil guiding member.

Abstract: A moveable member for activating the discharge of lubricant wherein the moveable member is comprised of a breakable material. A method of minimizing damage to a conveyor system due to the displacement of a lubricating activating member by selecting the material of the activating member from a group of materials which is destructible by the conveyor system without affecting the conveyor system.

Abstract: A method and compositions for lubricating surfaces with lubricating oils exhibiting increased phosphorous retention. The lubricated surface includes a lubricant composition containing a base oil of lubricating viscosity, an amount of a phosphorus-containing compound and an amount of at least one hydrocarbon soluble titanium compound effective to provide an increase in phosphorus retention of the lubricant composition greater than an increase in phosphorus retention of the lubricant composition devoid of the hydrocarbon soluble titanium compound.

Abstract: A gear comprised of a tooth surface and a hard carbon film formed on at least a part of the tooth surface. When the gear is used in lubricant including a specific component, a friction of a tooth surface of the gear is largely decreased, and therefore the gear performs an excellent power transmission efficiency. Further, when the gear is employed in a planetary gear mechanism or speed reducing mechanism which has a plurality of meshing portions of gears, the power transmission efficiency of the mechanism is also improved.

Abstract: A lubricating pack specifically designed for paper shredders, including a piece of oiled paper saturated with lubricant placed between two jackets that are each provided at an inner layer thereof with an oil-seepage-proof film. The two jackets are then formed with a first seal sealed around their peripheries to form a lubricating pack having a laminating construction. The lubricating pack is fed into the paper shredder through a paper inlet to the paper shredder under auto mode to be shredded by the paper shredder. Accordingly, the cutting blades of the paper shredder would be able to contact the lubricant contained in the oiled paper during the process of shredding the lubricating pack, so as to provide lubrication between cutting blades of the paper shredder thereby extending the lifespan of the paper shredder.

Abstract: A method of supplying lubricating oil in cold-rolling by emulsion lubrication, characterized by comprising: using a constant (supply efficiency) obtained under conditions of a specific rolling rate, emulsion supply, emulsion concentration, emulsion temperature, plateout length, rolled material width or roll barrel length, rolling load, grade of the rolled material, and type of lubricating oil and oil film thickness at the time of neat lubrication realized under the specific rolling lubrication conditions to estimate the oil film thickness realized by emulsion lubrication under the specific rolling lubrication conditions and controlling at least one of the emulsion supply, emulsion concentration, emulsion temperature, and plateout length so that the estimated oil film thickness matches with the target oil film thickness.