Abstract:
Provided is a rolling bearing using a retainer, particularly a highly reliable retainer in which dimensional stability required for a retainer of an outer ring guide type, ductility required for a crown-type retainer, improvement in adhesion of grease with a poly-α-olefin oil or the like as a base oil, and deformation prevention at a high speed can be achieved. The rolling bearing includes at least an inner ring 1, an outer ring 3, a synthetic resin retainer 9, and a rolling element 7, in which the synthetic resin retainer 9 is formed of a polyamide resin composition including polyamide 410 and a reinforcing fiber material with a content of 0% by weight to 40% by weight.
Abstract:
A target substance capturing device includes a reflection surface on which a plurality of non-flat portions is arrayed, the reflection surface capturing a target substance, and reflecting irradiated light. The plurality of non-flat portions are arranged in an array, the array includes a plurality of unit arrays in which the plurality of non-flat portions are arranged such that each one center of the non-flat portions superposes a position of a vertex in an M-time symmetrical figure, and the plurality of unit arrays is arranged such that each one center of gravity of the M-time symmetrical figure superposes a position of an intersection of an N-time symmetrical lattice pattern, where M is an integer of two or more, and N is an integer of two or more and different from M.
Abstract:
[Problem] To provide a linear motion device using a highly reliable and environmentally friendly separator that improves a dimensional stability, ductility, and adhesion of greases based on poly-α-olefin oil, which are required for separators, and also prevents deformation at high speeds. [Solution] Provided is a linear motion device including a linear motion body (15) that is fitted onto a screw shaft (11) and moves straight along the screw shaft (11), a large number of balls (B) held in a ball groove (14) formed on an inner surface side of the linear motion body (15) and rolling between the ball groove (14) and the screw shaft (11), a separator (100) interposed 10 between each ball (B), a circulation passage (18) formed in the linear motion body (15) and circulating the ball (B) from one end side of the ball groove (14) to the other end side, where at least one of the separator (100) and the circulation passage (18) is formed from polyamide 410 by injection molding.
Abstract:
Provided is a grease deterioration detecting method which can detect deterioration of grease and in which the amount of grease necessary for detecting deterioration is small. The grease deterioration detecting method includes a dilution step of diluting grease with a diluent to obtain diluted grease, and a measurement step of measuring a color of the diluted grease with a sensor.
Abstract:
A target substance capturing device includes a supporting member to place and support a metal-film coated structure that captures a target substance, and including at least two holes opening at portions different from a portion where the metal-film coated structure is placed, a holding member that puts the metal-film coated structure in between the holding member and the supporting member, and including an opening portion that overlaps with the holes of the supporting member, and a portion that captures the target substance in the metal-film coated structure placed on the supporting member, and a covering member having transparency, and covering the opening portion of the holding member.