Disclosed herein is a sliding member that has a coating layer serving as a sliding surface thereof so that even when foreign matter enters between the coating layer and a partner member, smoothness between them is maintained to prevent the occurrence of seizing. When the coating layer has an elastic recovery ratio of less than 60%, foreign matter that has entered between the coating layer and the sliding surface of a partner member is efficiently embedded in the coating layer. When the coating layer is formed of a resin composition, the resin composition contains a binder resin, a solid lubricant, and metal particles having a Young's modulus of 10 GPa or more but 100 GPa or less.

A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625 F.-1680 F. (885 C.-916 C.), and then carbo-nitriding the article within a temperature range of 1575 F.-1625 F. (857 C.-885 C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.

A slide bearing can include a metal support, a primer layer, an adhesive layer applied directly thereto, and a sliding layer applied to the adhesive layer. The primer layer can include an oligomeric condensate of at least one silanol selected from the group having the formula: ##STR00001## wherein x is 1 or 2, y is 0 or 1.
The moieties R.sup.1 and R.sup.2 can be the same or different. The moieties R.sup.1 and R.sup.2 can be selected from the group consisting of methyl, ethyl, n-propyl, i-propyl, and a functionalized alkyl group R(CH.sub.2).sub.z, wherein z is at least 1. Slide bearings comprising a primer system based on silanol oligomeric condensates show improved peel strength than their analogous slide bearings lacking the primer system.

An article exhibiting magnetic properties, a method for providing corrosion resistance to an article, and an electric machine element are disclosed. The article comprises a substrate comprising a first portion of a magnetic material, the magnetic material exhibiting magnetic properties. The article further comprises a transition layer comprising a second portion of the magnetic material and a first portion of a coating material. The transition layer is disposed on at least a portion of the substrate. The article further comprises an outer layer comprising a second portion of the coating material. The outer layer is disposed on at least a portion of the transition layer.

A hybrid bearing may increase heat transfer, bearing load capacity, and bearing life in various applications, including but not limited to radial and axial tilting pad bearings. In the illustrative hybrid bearings, the hybrid bearing may comprise at least one tilt pad that is moveable with respect to a main body and at least one fixed pad that is fixed with respect to the main body. Either the fixed pad or the tilt pad (and/or a surface thereof) may be comprised of a non-metallic material (e.g., a polymer or a ceramic material).

A method of forming a corrosion resistant bushing includes bonding a sliding layer to a first surface of a load bearing substrate to form a laminate sheet and cutting a blank from the laminate sheet. The laminate sheet includes an exposed surface corresponding to a second surface of the load bearing substrate. The blank includes cut edges having a load bearing substrate portion. The method further includes forming a semi-finished bushing from the blank.

A plain bearing comprising a generally cylindrical sidewall having a first axial end and a second axial end; and a curved portion disposed at the first axial end, wherein the generally cylindrical sidewall has a thickness, wherein the curved portion has an effective material thickness, wherein the effective material thickness of the curved portion is n-times thicker than the thickness of the generally cylindrical sidewall, and wherein n equals 2, 3, 4, or even 5.

A driveshaft has an elongated monolithic composite tube with a front joint at one end thereof and a rear joint at an opposite end thereof. The tube has an inner layer formed of glass fibers coaxially wound on top of one other. The tube has outer layer wound directly on the inner layer. The outer layer is formed substantially of carbon fibers. A ratio of a thickness of the outer layer to the thickness of the inner layer is between 0.8 and 1.2.

Rotating machines and rotors therefor are disclosed. The bearings may be magnetic bearings configured to magnetically levitate the rotor. The rotors may include a hollow fiber-reinforced composite shaft and a magnetic bearing rotor core disposed on the shaft and configured for use with the magnetic bearing. In some examples, the rotating machines may be electrical machines.

A sliding member of the present embodiment includes: a lining layer including a Bi phase; and a coating layer containing Ni, the coating layer being provided on a surface of the lining layer, the coating layer partially forming an entrance portion that has entered the lining layer side at an interface with respect to the lining layer. At any observation region including the interface between the lining layer and the coating layer, a value R=S1/S2 of a ratio of a maximum area S1 of the Bi phase included in the lining layer to a maximum area S2 of the entrance portion that has entered the lining layer is 1.00?R?9.00.