摘要:
A mechanical system (40) for high acceleration loading includes a mechanical element (94) configured for rotational movement in a high acceleration environment. The mechanical element (94) possesses a first density. A lubricant (120) having a second density is disposed about the mechanical element. The first and second densities are substantially identical such that the mechanical element (94) is substantially neutrally buoyant in the lubricant (120).
摘要:
A bearing (1) includes a cylindrical inner race (10); a plurality of rollers (13) arranged along an outer circumferential surface of the inner race (10); and a first cage (11) arranged radially outside of the inner race (10) to hold the rollers (13) on an outer circumferential portion of the inner race (10). The first cage (11) includes a plurality of first columnar portions (110) each of which extends in an axial direction, and a first ring (111) arranged to join axially upper end portions of the first columnar portions (110) to one another. The inner race (10) and the first cage (11) are arranged to rotate relative to each other. Each roller (13) is arranged between adjacent ones of the first columnar portions (110). A portion of each roller (13) is arranged radially outward of the first columnar portions (110). A second cage (12) is arranged between the first ring (111) and the inner race (10) and between the first columnar portions (110) and the inner race (10). The second cage (12) is defined by a solid lubricant.
摘要:
Kunststoffaufweisendes Lagerelement, das zumindest teilweise aus einem Kunststoff oder einer Kunststoffzusammensetzung hergestellt ist, wobei der Kunststoff oder die Kunststoffzusammensetzung Additive, insbesondere Sicherungspartikel, aufweist, die analytisch, insbesondere optisch, detektierbar sind.
摘要:
This rolling bearing retainer (RT) which is formed by insert molding a resinous material together with a core member (1) within a mold, in which the core member (1) is embedded within a resin part (2) made of the resinous material and there is provided a support area exposure part (16) at a plurality of locations of the resin part (2) for exposing a support area (6) of the core member (1) supported within a cavity of the mold. The resin part (2) includes a ring shaped body (23) and a plurality of support column bodies (24) extending axially from the ring shaped body (23) and defining a pocket (Pt) for retaining a rolling element therebetween, and the core member (1) is provided with a ring shaped body embedded part (3a) and a plurality of support column body embedded parts (3b) extending from the ring shaped body embedded part (3a).
摘要:
Ausführungsbeispiele betreffen einen Wälzlagerkäfig (1) oder -segment. Dieser oder dieses besteht zumindest teilweise aus einem Kunststoff. Der Kunststoff umfasst zumindest abschnittsweise eine Schaumstruktur (2).
摘要:
Ausführungsbeispiele betreffen einen Wälzlagerkäfig (1) oder -segment. Dieser oder dieses besteht zumindest teilweise aus einem Kunststoff. Der Kunststoff umfasst zumindest abschnittsweise eine Schaumstruktur (2).
摘要:
A tapered roller bearing (31a) has a plurality of retainer segments (11a, 11d) each having a pocket to house a tapered roller (34a), and arranged so as to be continuously lined with each other in a circumferential direction between an outer ring (32a) and an inner ring (33a). The retainer segment (11a, 11d) is formed of a resin containing a filler material to lower a thermal linear expansion coefficient. In addition, a clearance (39a) is provided between the first retainer segment (11a) and the last retainer segment (11d) after the plurality of retainer segments (11a, 11d) have been arranged in the circumferential direction without providing any clearance. Here a circumferential range (R) of the clearance (39a) is larger than 0.075% of a circumference of a circle passing through a center of the retainer segment (11a, 11d) and smaller than 0.12% thereof at room temperature.
摘要:
A lubricant comprises oleophilic thickening fibers dispersed in an oil and/or lubricating fluid. The oleophilic thickening fibers have a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter.
摘要:
A roller bearing having spacers interposed between its rollers is provided, which has a high permissible rotational speed which is achieved by allowing a lubricant to flow smoothly around rolling surfaces so that the stirring resistance of the lubricant due to the spacers is reduced. The roller bearing includes: a plurality of rotatable rollers (16) interposed between an inner ring raceway surface and an outer ring raceway surface; and spacers (18) provided between adjacent rollers (16). Each of the spacers (18) includes extended portions (18a) facing roller end faces (16b) at both axial ends thereof.
摘要:
A mechanical system (40) for high acceleration loading includes a mechanical element (94) configured for rotational movement in a high acceleration environment. The mechanical element (94) possesses a first density. A lubricant (120) having a second density is disposed about the mechanical element. The first and second densities are substantially identical such that the mechanical element (94) is substantially neutrally buoyant in the lubricant (120).