Abstract: A Woodruff key system includes a rotatable shaft having a keyseat defined therein. The keyseat includes a pocket engaged with the Woodruff key, a first keyseat extension extending in a first axial direction from the Woodruff key relative to the shaft, and a second keyseat extension extending in a second axial direction opposite the first axial direction from the Woodruff key relative to the shaft. Respective depths of the first and second keyseat extensions are less than a depth of the pocket of the keyseat.

Abstract: A bearing housing for a bearing having an outer race, the bearing housing comprising: an annular wall extending about an axis and axially between a first end and a second end, the annular wall including: a plurality of holes spaced circumferentially from one another and spaced axially from the first end, the plurality of holes extending through the annular wall toward the axis; and an interior housing surface extending about the axis and defining interior openings of the plurality of holes, the interior housing surface having a cylindrical portion defining a seat for radial engagement with the outer race, the cylindrical portion extending axially from a first location proximate to the first end to at least a second location between the first location and the interior openings.

Abstract: A bearing housing for a bearing having an outer race, the bearing housing comprising: an annular wall extending about an axis and axially between a first end and a second end, the annular wall including: a plurality of holes spaced circumferentially from one another and spaced axially from the first end, the plurality of holes extending through the annular wall toward the axis; and an interior housing surface extending about the axis and defining interior openings of the plurality of holes, the interior housing surface having a cylindrical portion defining a seat for radial engagement with the outer race, the cylindrical portion extending axially from a first location proximate to the first end to at least a second location between the first location and the interior openings.

Abstract: Woodruff key coupling systems for torque transmission are provided. An example Woodruff key system includes a rotatable shaft having a keyseat defined therein. The keyseat includes a pocket engaged with the Woodruff key, a first keyseat extension extending in a first axial direction from the Woodruff key relative to the shaft, and a second keyseat extension extending in a second axial direction opposite the first axial direction from the Woodruff key relative to the shaft. Respective depths of the first and second keyseat extensions are less than a depth of the pocket of the keyseat.

Abstract: An inner ring cooperates with an outer ring to form a roller bearing assembly. The inner ring comprises an outer circumferential surface receiving a plurality of roller bearing elements engageable with the outer ring upon forming of the roller bearing assembly. An inner circumferential surface of the inner ring is slideably mountable to a shaft upon forming of the roller bearing assembly and includes a base portion slideably engageable with a surface of the shaft upon mounting and at least one cutout portion opening to an outer edge of the inner circumferential surface. A clearance forms between a surface of the at least one cutout portion and the surface of the shaft upon mounting. Upon forming of the roller bearing assembly, the base portion of the circumferential surface is engageable with the shaft subsequently to the plurality of roller bearing elements engaging with the outer ring.

Abstract: An inner ring cooperates with an outer ring to form a roller bearing assembly. The inner ring comprises an outer circumferential surface receiving a plurality of roller bearing elements engageable with the outer ring upon forming of the roller bearing assembly. An inner circumferential surface of the inner ring is slideably mountable to a shaft upon forming of the roller bearing assembly and includes a base portion slideably engageable with a surface of the shaft upon mounting and at least one cutout portion opening to an outer edge of the inner circumferential surface. A clearance forms between a surface of the at least one cutout portion and the surface of the shaft upon mounting. Upon forming of the roller bearing assembly, the base portion of the circumferential surface is engageable with the shaft subsequently to the plurality of roller bearing elements engaging with the outer ring.