摘要:
A bearing apparatus includes a rolling bearing (16) having an outer ring (16a), an inner ring (16b), and rolling elements (16c) disposed between the inner ring (16b) and the outer ring (16a), a temperature sensor (TS) for measuring an internal temperature of the rolling bearing and a lubrication unit (22). The lubrication unit supplies lubricating oil in a quantity corresponding to the temperature detected by the temperature sensor, to the rolling bearing. With this configuration, it is feasible to provide the bearing apparatus capable of ensuring a sufficiently long life under the condition of high-speed rotations. The bearing apparatus is suitable for use in a spindle for a machine tool.
摘要:
A bearing apparatus includes a rolling bearing (16) having an outer ring (16a), an inner ring (16b), and rolling elements (16c) disposed between the inner ring (16b) and the outer ring (16a), a temperature sensor (TS) for measuring an internal temperature of the rolling bearing and a lubrication unit (22). The lubrication unit supplies lubricating oil in a quantity corresponding to the temperature detected by the temperature sensor, to the rolling bearing. With this configuration, it is feasible to provide the bearing apparatus capable of ensuring a sufficiently long life under the condition of high-speed rotations. The bearing apparatus is suitable for use in a spindle for a machine tool.
摘要:
A bearing apparatus including a rolling bearing having an outer race (11), an inner race (12) and a rolling member (13) disposed between two races, and a thermal sensor (TS) measuring an internal temperature of the rolling bearing. Wiring from the thermal sensor extends to outside via a through-hole (lid) formed in a component of the bearing apparatus, and hence the thermal sensor can be disposed in a desired position with excellent flexibility of wiring extension, and can measure a temperature in the desired position of the bearing. The thermal sensor, which can be constructed thin in a small size having the flexibility, can be therefore incorporated in whatever portion of the bearing and can improve a characteristic of detecting an abnormal temperature with a high response of the temperature detection.
摘要:
A target substance detecting apparatus includes a photonic crystal biosensor configured to include a photonic crystal, which has a reflection surface including concave portions and convex portions formed regularly on its surface, covered by a metal film, and reflecting light irradiated to the reflection surface; an optical detecting unit configured to irradiate parallel light to the reflection surface, and to detect reflected light of the parallel light reflected on the reflection surface; and a processing unit configured to obtain a wavelength at an extreme value of the reflected light detected by the optical detecting unit, and to detect at least whether the target substance is present or not based upon a shift of the obtained wavelength at the extreme value.
摘要:
The present invention provides a rolling bearing having a prolonged life suitable for wheel, railway vehicle and steel rolling mill comprising a sealing member which exhibits fair sealing properties even under severe conditions. A rolling bearing comprising an outer ring having an outer raceway formed on the inner surface thereof, an inner ring having an inner raceway formed on the outer surface thereof, a plurality of rolling elements rollably provided between the outer ring and the inner ring, and a sealing member for sealing the axial opening of the space between the inner surface of the outer ring and the outer surface of the inner ring in which said rolling elements are provided, characterized in that the sealing member is formed by an elastic member made of a vulcanizable rubber composition obtained by blending a carboxylated acrylonitrile-butadiene rubber with at least carbon black.
摘要:
A linear guide apparatus includes a slider, a guide rail opposing the slider with a clearance provided therebetween, a plurality of rolling elements which are rotatably interposed there between, and a contact seal device for sealing an opening of the clearance. A side seal member of the contact seal device is made of a rubber material composition containing fluoro rubber. The rubber basically comprises at least one of copolymers that are vinylidenefluoride-tetrafluoroethylene-polypropylene terpolymer and tetrafluoroethylene-polypropylene copolymer.
摘要:
A bearing apparatus includes an outer ring (11), an inner ring (12), rolling elements (13) disposed between the two rings, and a seal (15) attached to one of the outer ring and the inner ring and extending toward the other ring. A temperature sensor is fitted to the seal, and hence a temperature of the seal contacting with a rotary wheel can be directly measured. Accordingly, if the temperature measured by the temperature sensor rapidly rises, this implies that some inconvenience might occur, and necessary countermeasures such as immediately stopping an apparatus using the bearing apparatus can be taken before the explicit inconvenience occurs.
摘要:
A seal 1 having one or more lips 13 constituted of a molded rubber is described, wherein the lips 13 (the whole elastic body 3) have been formed so as to have a maximum value of loss tangent (tan δ) of 0.40 or smaller in the temperature range of from 20 to 70° C.
摘要:
A bearing apparatus has a rolling bearing including an outer ring (11), an inner ring (12), and rolling elements (13) disposed between the two rings, and a temperature sensor (TS) for measuring an internal temperature of the rolling bearing. A wire from the temperature sensor extends to the outside via a through-hole (11d) formed in a component of the bearing apparatus, and hence the temperature sensor can be disposed in a desired position with excellent wiring extension flexibility, thereby enabling a temperature in the desired position of the bearing to be measured. The temperature sensor, which can be configured thin in a small size with flexibility, can therefore be incorporated into whichever portion of the bearing, wherein a high response to temperature detection is attained, and detectability of abnormality in temperature can be improved.
摘要:
A bearing apparatus includes an outer ring (11), an inner ring (12), rolling elements (13) disposed between the two rings, and a seal (15) attached to one of the outer ring and the inner ring and extending toward the other ring. A temperature sensor is fitted to the seal, and hence a temperature of the seal contacting with a rotary wheel can be directly measured. Accordingly, if the temperature measured by the temperature sensor rapidly rises, this implies that some inconvenience might occur, and necessary countermeasures such as immediately stopping an apparatus using the bearing apparatus can be taken before the explicit inconvenience occurs.