A method for coating a component, the method including the steps of depositing, by a thermal spraying process, simultaneously a first material and a second material on a surface of the component to form a rough coating, wherein the first material is of higher hardness than the second material and removing a layer of the rough coating such that the second material plastically deforms and produces a finished coating having a finished surface with an Rz value of less than 2 m.

A bearing assembly having an inner race ring (14) that defines an inner raceway and an outer race ring that defines an outer raceway on which the plurality of rolling elements (22) roll. The bearing raceways are machined using surface finishing operations to create preferred surface profiles and textures for improving lubrication performance. The profile of the raceway is initially created using a first grinding process to form a rough surface profile including a rough central band (34) and rough recessed side bands (38). A second grinding process is used to smooth the central band. This raceway surface profile increases lubrication performance.

For friction reduction in sliding bearing, it is known to structure the sliding surface (1) by ECM by introducing a plurality of microscopic small indentations (27). According to the invention it is proposed in particular in the same process step to smoothen also the intermediary spaces (6) between the indentations (27), thus to remove the tips of the surface profile.

A base-material hole is formed in a connecting-rod base material. A coating layer is deposited on an inner peripheral surface of the base-material hole. The base-material hole 15 has a cylinder inner-surface portion of a constant inner diameter, formed in a central region in an axial direction, and a tapered inner-surface portion that is continuous with an axially outer side of the cylinder inner-surface portion and is radially enlarged in an axially outward direction. The coating layer has a first coating portion and a second coating portion deposited on the tapered inner-surface portion to adjoin the first coating portion and gradually increasing in material thickness in the axially outward direction.

A bearing assembly is disclosed having a wearing surface formed from an alloying including tin, a wear material configured to be contacted by the wearing material during use, and the wear material having a smoothed surface. A method of providing superlubricious performance of a bearing assembly is also provided.

First, in a primary sintering step, a manufacturing system 1 for a sliding member 2 laminates and thereby forms a sintered alloy layer 4 on back metal 3. Subsequently, a large number of indents 5 are formed on a front surface of the sintered alloy layer 4 by an indent-forming mechanism 14. Next, the back metal 3 and sintered alloy layer 4 are rolled by a reduction roll 15 and a secondary sintering process is applied to the sintered alloy layer 4. Consequently, the sliding member 2 is manufactured with the large number of indents 5 provided on a front surface. Since the indents 5 are formed on the sintered alloy layer 4 after the primary sintering step, it is possible to inhibit work hardening from occurring in the indents 5 and surrounding areas.

This invention concerns a burnishing head for smooth rolling of the ring-shaped flat end faces (3, 4) at the thrust bearing of crankshafts by means of two cylindrical burnishing rollers (1, 2) which are arranged to be rotated and are side by side in parallel to each other within a burnishing head housing (12) that is pivotable about its longitudinal axis (20) to reach its the working position. Each burnishing roller (1, 2) is pivoted in a cage (10, 11) which is provided in the burnishing head housing (12) with low play (13) and lateral relocatability.

A method for prolonging the service life of a product that is subjected to Hertzian contact stress when in use, and which includes a metal surface having at least one indentation, includes removing a first portion of the at least one indentation from the metal surface to provide a remanufactured product having a remanufactured metal surface having a second portion of the at least one indentation, obtaining information about the second portions of the at least one indentation, using the information to estimate potential stress concentrations that are detrimental to lubrication conditions and/or fatigue life of the remanufactured metal surface using analytical modelling, and providing a prediction of the performance of the remanufactured product based on the estimation.

A bearing assembly having an inner race ring (14) that defines an inner raceway and an outer race ring that defines an outer raceway on which the plurality of rolling elements (22) roll. The bearing raceways are machined using surface finishing operations to create preferred surface profiles and textures for improving lubrication performance. The profile of the raceway is initially created using a first grinding process to form a rough surface profile including a rough central band (34) and rough recessed side bands (38). A second grinding process is used to smooth the central band. This raceway surface profile increases lubrication performance.

Provided are a finishing device for aero-engine bearing rings and a finishing method for distributed aero-engine bearing rings, which belong to the technical field of grinding or polishing devices or techniques, and solve the technical problem of low finishing efficiency of an existing rotary barrel finishing by floating clamp. N suspension assemblies are arranged in a container body, and the centers of the N suspension assemblies are located on a second virtual circle with the center of a bottom wall of the container body as the center of a circle. Through an eccentric arrangement of a bearing ring to be finished, an internal space of the container body is effectively and reasonably utilized, and N bearing rings can be simultaneously finished.