Abstract:
A thrust bearing includes a first axial end washer defining thereon a first race, a second axial end washer defining thereon a second race, a one-piece, radially -inner washer having a first axial end engaged with the first axial end washer and having a second axial end defining thereon a third race, and a one-piece, radially-outer washer having a first axial end defining thereon a fourth race and having a second axial end engaged with the second axial end washer. A first set of tapered rolling elements is supported between the first race and the fourth race and a second set of tapered rolling elements is supported between the second race and the third race. The first and second sets of tapered rolling elements are both axially and radially offset from one another.
Abstract:
An assembly tool (104) for positioning the rolling elements (150, 155) of a bearing assembly (100) during a preloading operation includes a roller seating actuator (400) configured to be removably coupled to a portion of the bearing assembly during the preloading operation, and a roller seating ring (420) movably coupled to the roller seating actuator. The roller seating ring includes a distal end (440) configured to engage an end of a rolling element of the bearing assembly. A biasing member (460) is positioned between the roller seating actuator and the roller seating ring and biases the roller seating ring away from roller seating actuator such that the distal end of the roller seating ring engages and presses the rolling element axially into engagement with a rib (145) of a race of the bearing assembly.
Abstract:
A roller bearing includes an inner race ring, an outer race ring, and a roller arranged between and in contact with the inner and outer rings. The bearing has a flange (31,131) on the inner race ring at one axial end, and a flange (21,121) on the outer race ring at an opposite axial end. One of the flanges, and/or an end of the roller, includes at least one principal segment (53,153) intermediate two additional segments (52,152;54,154). The principle segment is tangentially blended with the two additional segments, and the principle segment has a first curvature that is different from the respective curvatures of the two additional segments. A non-elliptical contact footprint can be obtained by composite profiles at the contact location between the roller end and the mating flange face.
Abstract:
Boron soap compounds are provided. Lubricating grease compositions are provided. The lubricating grease compositions include a lubricating oil and at least one boron soap compound. The lubricating grease compositions can optionally include one or more additive.
Abstract:
A seal for use with a bearing assembly defining a bearing axis. The seal includes a seal case (14') having a bend lip section (18) configured to be positioned into a groove (22) in a component of the bearing assembly, a first section (30) extending from the bend lip section, a second section (34) offset axially from the first section, and a transition section (90) extending between the first section and the second section to provide the offset between the first and second sections. The transition section defines a neutral axis forming an angle a l with a line L parallel to the bearing axis, and the angle a l is less than or equal to 20°. A seal lip (42) is coupled to the second section and is configured for sealing engagement with a component of the bearing assembly.
Abstract:
A fixture (10) for installing a seal wear ring (14) onto a bearing component. The fixture (10) includes a base ring (30), a press ring (34) that is movably coupled to the base ring (30), and a heating element (38) to heat the seal wear ring (14) during installation. The seal wear ring (14) is moved by the press ring (34) during installation.
Abstract:
A sensor for an encoder. The sensor includes a sensing circuit, an active setting module, an inactive setting module, and a sensor interface. The sensing circuit module is configured to generate an output signal related to a sensed characteristic. The active setting module includes a first pole width setting. The first pole width setting is associated with a first pole width for the encoder. The first pole width setting is accessible by the sensing circuit module. The inactive setting module includes second pole width setting. The second pole width setting is associated with a second pole width for the encoder. The second pole width setting is not accessible by the sensing circuit module. The sensor interface is configured for retrieving the second pole width setting from the inactive setting module and writing the second pole width setting to the active setting module.
Abstract:
A steel article with resistance to contact fatigue having a martensitic stainless steel body with a hardened surface layer and a core. The hardened surface layer is tempered martensite and M 7 C 3 carbides, has at least 1.6 wt.% carbon, and has a depth equal to or greater than the depth where the steel article experiences the maximum shear stress when placed in service. Also, a method of manufacturing such as a steel article having resistance to contact fatigue comprising: providing a martensitic stainless steel article having a prior austenite grain size of ASTM #6 or smaller; carburizing the surface of the steel article; solution treating the steel article; tempering the steel article for a first time; hardening the steel article; cooling the steel article at a temperature below 0°F; and tempering the steel article for a second time.
Abstract:
A sensor system for detecting at least one of a speed and a position of a rotatable member. The sensor system includes a high-resolution sensor circuit including a plurality of Hall effect sensors and at least one independent Hall effect sensor, wherein the independent Hall effect sensor includes at least one of a power supply line, a ground line, and an output line, none of which are connected to the high-resolution sensor circuit.
Abstract:
A spherical roller bearing (56, 72) includes an outer ring (20), an inner ring (24), and a plurality of rollers (14) positioned between the outer and inner rings and arranged in a row. The bearing also includes a first separator (10) positioned between adjacent first and second rollers in the row. The first separator includes a first plurality of contact pads (44) that engage the first roller, and a second plurality of contact pads that engage the second roller for maintaining separation and spacing of the first and second rollers. The bearing further includes a second separator (10) positioned between adjacent third and fourth rollers in the row. The second separator includes a first plurality of contact pads (44) that engage the third roller, and a second plurality of con- tact pads (44) that engage the fourth roller for maintaining separa- tion and spacing of the third and fourth rollers. The separators (10) are movable independently of each other.