摘要:
Each of resin cage (4) is injection-molded of a mixture material containing a thermoplastic resin selected as a material excellent in outgassing characteristic, a proper amount of reinforcing fiber, and a proper amount of a lubricating component. A lubricating film (10) made of a fluorine-containing polymer having a functional group is deposited on at least rolling surfaces and/or sliding surfaces of constituent members (inner and outer races (1 and 2), rolling elements (3) and cage 4) of a bearing. That is, the lubricating film (10) makes lubricity good at an early stage of rotation, so that incipient abrasion of the cage (4) can be suppressed. Hence, stabilization of operation with the passage of time can be exhibited on the basis of synergistic action of the lubricating film (10) and micro wear powder generated from the cage (4).
摘要:
A rolling bearing is used for supporting a rocking mechanism or a rotating mechanism, and a film comprising a fluorine-containing polymer having a functional group(s) under a fluidizied state or a film comprising a fluorine-containing polyurethane compound under a solid state is formed on at least the track surface of the rolling bearing. Since this film does not contain ions for uniformly dispersing a thickner having non uniform particle sizes such as fluorine based grease of the prior art, breakage of the film between a rolling element and a race is not likely to occur, and wear of a rolling element race resulting from the direct contact between them due to breakage of the film can be reduced. When this film is tha same kind of a film as a protective film of the surface of an information recording disk, dust generating components of the film are the same kind of components as those of the protective film, and information recording/reproduction of the information recording disk is not impeded.
摘要:
A solid film of a fluorine-containing polyurethane polymer is formed on at least one of the constituent elements (inner and outer rings, rolling member and retainer) of a rolling-contact bearing. The molecules of the solid film of the fluorine-containing polyurethane polymer have urethane bonds, and form a three-dimensional reticular structure. Therefore, the film is unlikely to separate, peel off or wear. The occurrence of the dust can be restricted, and lubrication property can be improved.
摘要:
An arrangement in which respective roughnesses are defined for orbital grooves of inner and outer rings and a surface of rolling members which are constituents of a rolling bearing and in which their conditions of contact are controlled whereupon a minimum amount lubricating oil is adhered at a strong bonding force to thereby obtain a condition in which lubricating oil is continuously interposed at mutual contacting portions of the inner and outer rings, the rolling members and a cage to thereby enable favorable sliding properties and remarkable restrictions in generation of dust.
摘要:
A process for forming a lubricating film on a direct acting bearing includes the steps of forming a liquid film on at least the rolling and sliding portions of the direct acting bearing by using a solution prepared by diluting a fluorine-containing polymer in a solvent. The liquid film is then cured to form a solid film of a fluorine-containing polyurethane high molecular compound on the direct acting bearing.
摘要:
Larger pre-tension is applied to each link such that residual compressive stress is larger at the portion of the link facing the inside of a chain than the outside. Assuming that for each of the links in a state that pre-tension is not applied, a predetermined pitch is P, a first inclination angle of a fixing portion of the front inserting portion with respect to a chain proceeding direction is α, and a second inclination angle of a fixing portion of the rear inserting portion with respect to a chain proceeding direction is β, when the pre-tension is applied to each of the links, the pitch changes into P+ΔP, the first inclination angle changes into α−Δα and the second inclination angle changes into β+Δβ where ΔP>0, Δα>0, and Δβ>0.
摘要:
An apparatus for actuating an automatically operated clutch for use in the driveline of an automotive vehicle. Such apparatus being operative to drive the clutch to disengage when shift is being made in the transmission with the accelerator pedal kept depressed and also being operative, in response to vehicle speed, for enabling the clutch to be engaged at a moderate rate when the vehicle speed is higher than a predetermined level. The apparatus is responsive to movement of the accelerator pedal for enabling the clutch to be engaged at a rate varying with the depth to which the accelerator pedal is depressed, and also for enabling the clutch to be driven toward an engaged condition rapidly for a certain period of time slightly before the clutch is first brought into engagement.
摘要:
A system for issuing instructional signals to individual cars of a train for causing actuation of a device such as a container locking device of the individual car. A plurality of instructional signal lines and a plurality of feedback lines extend through each car in a direction parallel to the direction of travel of the car, the number of lines being at least as great as the number of cars in the train. The one ends of the lines are connected to terminals at one end of each car in positional correspondence with the lines, and the other ends of the lines in each car are connected to terminals offset by one from the terminals in positional correspondence with the respective lines. The other end of the line on one edge of each array of the plurality of lines extends across the array and is connected to the terminal in positional correspondence with the line on the other edge of the array. The terminals in adjacent cars are connected. Instructional signal receiving relays in each car are coupled to the line on the one edge of each array, and the device for carrying out a desired function, such as locking of container in each car, is coupled to the instructional signal receiving relays for operation in response to energization of the relays. An order fulfilled signal transmitting relay in each car is coupled to the line on the one edge of each array and is actuated upon completion of the desired function. With this arrangement, the cars in the train can be shifted in the train or their direction reversed and the signal lines can still be used to transmit a signal to a given car in the train.
摘要:
Larger pre-tension is applied to each link such that residual compressive stress is larger at the portion of the link facing the inside of a chain than the outside. Assuming that for each of the links in a state that pre-tension is not applied, a predetermined pitch is P, a first inclination angle of a fixing portion of the front inserting portion with respect to a chain proceeding direction is α, and a second inclination angle of a fixing portion of the rear inserting portion with respect to a chain proceeding direction is β, when the pre-tension is applied to each of the links, the pitch changes into P+ΔP, the first inclination angle changes into α−Δα and the second inclination angle changes into β+Δβ where ΔP>0, Δα>0, and Δβ>0.