Patent ID: 11965549
Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 8:
9. An unbalanced shaft having a center of mass eccentric to a rotational axis thereof which generates a shaft unbalance, the unbalanced shaft comprising:
a bearing journal having different widths throughout a circumference of the bearing journal; and
a cage having a plurality of rows of rollers configured to roll on a plurality of inner raceways arranged on an outer lateral surface of the bearing journal, the plurality of rows of rollers and plurality of inner raceways defining a load zone on an unbalance side of the unbalanced shaft; and
at least one of the plurality of inner raceways extends circumferentially for 360 degrees; and
within the load zone, an effective length of each one of the plurality of rows of rollers is less than a raceway width of a corresponding one of the plurality of inner raceways; and
in sections outside of the load zone: i) an effective length of at least one of the plurality of rows of rollers is greater than a raceway width of a corresponding one of the plurality of inner raceways, and ii) a raceway width of the at least one of the plurality of inner raceways is greater than an effective length of a corresponding row of the plurality of rows of rollers.