Abstract: A bearing apparatus includes a housing where a main spindle is accommodated, a bearing including an inner ring and an outer ring, the bearing supporting the main spindle rotatably with respect to the housing, a retaining lid fitted to an inside surface of the housing while the retaining lid is in contact with an axial end surface of the housing and an axial end surface of the outer ring, and a communication module arranged in a region opposed to the retaining lid with the bearing being interposed, the communication module wirelessly communicating over electromagnetic waves. In a portion of the retaining lid in contact with the housing, a non-metallic layer composed of ceramic which is a non-metallic material is provided.

Abstract: A bearing apparatus includes two bearings that rotatably support a main spindle, a spacer arranged between the two bearings, and a communication module arranged in the spacer. The bearing includes an inner ring and an outer ring made of a metal and a plurality of rolling elements arranged between the inner ring and the outer ring. The communication module contains a plurality of sensors and a communication apparatus that wirelessly transmits a result of detection by the sensors. An outer dimension of the inner ring of the bearing is set to be smaller than an inner dimension of the outer ring of the bearing. The rolling element is made of silicon nitride through which electromagnetic waves can pass.

Abstract: To make it possible to simply and easily attach/detach an attaching target to/from an attached target. A coupler includes: a base to be fixed to an attached target; and an attachment body that is fixed to the attaching target and to be detachably joined to the base, in which: the base includes a joint surface to be joined to the attachment body, a magnet configured to magnetically attach the attachment body to the joint surface, and an engaging part configured to engage with the attachment body; and the attachment body includes a joint surface to be joined to the base, a magnet configured to magnetically attach the magnet of the base to the joint surface, and an engaged part configured to disengageably engage with the engaging part of the base and restrict separation from the base.

Abstract: A bearing performance automatic calculation service device is provided which allows a user to receive an automatic calculation service at any time in any location, which easily ensures reliability in terms of leakage of transmitted/received data, and which is easily used in terms of an input operation. An e-mail address is assigned, which is used only for receiving a request for an automatic calculation service. It is determined whether authentication information and a description content of a file 5 attached to an e-mail 4 satisfy a condition. Evaluation of performance of a bearing with respect to a determined evaluation item by means of a calculation formula on the basis of the file is performed. A result of the evaluation to the file 5 is added to create a sending file. The sending file 5 is attached and sent back by the e-mail sending module 17.

Abstract: To make it possible to simply and easily attach/detach an attaching target to/from an attached target. A coupler includes: a base to be fixed to an attached target; and an attachment body that is fixed to the attaching target and to be detachably joined to the base, in which: the base includes a joint surface to be joined to the attachment body, a magnet configured to magnetically attach the attachment body to the joint surface, and an engaging part configured to engage with the attachment body; and the attachment body includes a joint surface to be joined to the base, a magnet configured to magnetically attach the magnet of the base to the joint surface, and an engaged part configured to disengageably engage with the engaging part of the base and restrict separation from the base.

Abstract: A bearing performance automatic calculation service device is provided which allows a user to receive an automatic calculation service at any time in any location, which easily ensures reliability in terms of leakage of transmitted/received data, and which is easily used in terms of an input operation. An e-mail address is assigned, which is used only for receiving a request for an automatic calculation service. It is determined whether authentication information and a description content of a file 5 attached to an e-mail 4 satisfy a condition. Evaluation of performance of a bearing with respect to a determined evaluation item by means of a calculation formula on the basis of the file is performed. A result of the evaluation to the file 5 is added to create a sending file. The sending file 5 is attached and sent back by the e-mail sending module 17.

Abstract: There is provided a lubricating method for a rolling bearing assembly capable of achieving a reliable lubrication and exhibiting a stable temperature rise. The method is for supplying a lubricant oil to the rolling bearing assembly during the operation thereof, in which in order to keep the temperature of a rolling bearing assembly (103) within a predetermined tolerance, the amount of the lubricant oil to be supplied during the operation is automatically or manually adjusted by means of a supply adjusting unit (102). Supply of the lubricant oil is performed in the form of an air/oil mixture by the use of a lubricant supply unit (101). The amount of the lubricant oil supplied varies depending on the rotational speed of the rolling bearing assembly (103).

Abstract: A rolling bearing is constructed so that, even though adapted for seals, strength of the bearing rings and reduction of the front width will not occur. Also dimensions equivalent to a non-sealed type bearing can be achieved. Rolling elements are disposed between an inner ring and an outer ring with seals provided. One seal is fitted in a pressed state on a peripheral surface portion of a cylindrical surface forming a counterbore of the outer ring. By pressing, the seal is mounted without forming a slot. The other seal is fitted in a slot. The inner ring and the outer ring, or rolling elements of a bearing comprising the outer ring, inner ring, rolling elements and a retainer are subjected to carbonitriding and a grease using a urea compound as a thickening agent is sealed in the bearing.

Abstract: A rolling bearing is proposed in which even though a sealed type, no lowering of strength of the bearing rings or lowering of the front width will not occur for the convenience of mounting of a seal, and design of dimensions equivalent to a non-sealed type bearing and practicability can be achieved, and has fretting resistance. Rolling elements 3 are disposed between an inner ring 1 and an outer ring 2 with seals 9 and 10 provided. The seal 9 arranged on a counterbore 8 of the outer ring 2 is fitted in a pressed state on a peripheral surface portion of a cylindrical surface 11 forming the counterbore 8. By pressing, the seal 9 is mounted without forming a slot. The other seal 10 is fitted in a slot 12. The inner ring and the outer ring, or rolling elements of a bearing comprising the outer ring, inner ring, rolling elements and a retainer are subjected to carbonitriding and a grease using a urea compound as a thickening agent is sealed in the bearing.

Abstract: There is provided a lubricating method for a rolling bearing assembly capable of achieving a reliable lubrication and exhibiting a stable temperature rise. The method is for supplying a lubricant oil to the rolling bearing assembly during the operation thereof, in which in order to keep the temperature of a rolling bearing assembly (103) within a predetermined tolerance, the amount of the lubricant oil to be supplied during the operation is automatically or manually adjusted by means of a supply adjusting unit (102). Supply of the lubricant oil is performed in the form of an air/oil mixture by the use of a lubricant supply unit (101). The amount of the lubricant oil supplied varies depending on the rotational speed of the rolling bearing assembly (103).

Abstract: To secure a load bearing capability along with a smooth supply and drainage of a lubricant oil into and from a rolling bearing assembly, a retainer and the rolling bearing assembly provided with such retainer are of a design in which the retainer (5) includes an annular wing portion (5a) and a plurality of pillars (5b) extending from circumferential locations of the annular wing portion (5a) and formed with a pocket (6) between the neighboring pillars (5b) for rollingly retaining rolling elements (4) of the rolling bearing assembly. The annular wing portion (5a) has an inner peripheral surface formed to define an inclined annular face (7). This inclined annular face (7) is deployed over a substantially entire width of the annular wing portion (5a) in an axial direction of the retainer (5) and is inclined to flare axially outwardly to have a diameter decreasing towards a mid-center portion of the retainer (5) in the axial direction.

Abstract: A method of fabricating a semiconductor device capable of remarkably reducing the quantity of misalignment after an etching step is obtained. This method of fabricating a semiconductor device comprises a first lithography step of transferring a mask pattern onto a first semiconductor substrate as a first resist pattern with positional reference to a first alignment mark, a first etching step of performing etching through the first resist pattern serving as a mask, a step of measuring the quantity of misalignment after the first etching step and a second lithography step of thereafter transferring the mask pattern onto a second semiconductor substrate as a second resist pattern while correcting the positional reference based on the first alignment mark on the basis of the quantity of misalignment after the first etching step.

Abstract: A rolling bearing is proposed in which even though a sealed type, no lowering of strength of the bearing rings or lowering of the front width will not occur for the convenience of mounting of a seal, and design of dimensions equivalent to a non-sealed type bearing and practicability can be achieved, and has fretting resistance. Rolling elements 3 are disposed between an inner ring 1 and an outer ring 2 with seals 9 and 10 provided. The seal 9 arranged on a counterbore 8 of the outer ring 2 is fitted in a pressed state on a peripheral surface portion of a cylindrical surface 11 forming the counterbore 8. By pressing, the seal 9 is mounted without forming a slot. The other seal 10 is fitted in a slot 12. The inner ring and the outer ring, or rolling elements of a bearing comprising the outer ring, inner ring, rolling elements and a retainer are subjected to carbonitriding and a grease using a urea compound as a thickening agent is sealed in the bearing.

Abstract: A method of fabricating a semiconductor device capable of remarkably reducing the quantity of misalignment after an etching step is obtained. This method of fabricating a semiconductor device comprises a first lithography step of transferring a mask pattern onto a first semiconductor substrate as a first resist pattern with positional reference to a first alignment mark, a first etching step of performing etching through the first resist pattern serving as a mask, a step of measuring the quantity of misalignment after the first etching step and a second lithography step of thereafter transferring the mask pattern onto a second semiconductor substrate as a second resist pattern while correcting the positional reference based on the first alignment mark on the basis of the quantity of misalignment after the first etching step.

Abstract: In response to a testing instruction from a PHSC, the cell range of CS 4a is expanded from a range indicated by a solid line to another range indicated by a broken line in which CS 4a can communicate with CSs 4b, 4g and 4f as well as other CSs not shown adjacent to CS 4a. Under the control of the PHSC, test calls are successively produced from CS 4a and transmitted to CSs 4b, 4g, 4f and all other adjacent CSs not shown to confirm the normality of connection. Then, in a similar manner as described above, the PHSC repeats this operation successively for all CSs and confirms the normality of the CSs from obtained results. When an abnormal condition is found out in a test result, the PHSC analogizes from a combination of test routes to specify the abnormal CS.