US Patent 11761541 Unitized seal assembly with axial positioner

A seal assembly is for sealing a bearing disposed between an inner shaft and an outer hub and includes an annular inner case having an axial section disposable about the shaft shoulder and a radial section extending radially outwardly from the axial section. An annular outer case is disposed about the inner case, has an axial section coupleable with the hub and a radial section extending radially inwardly from the outer case axial section and spaced axially from the inner case radial section. An elastomeric seal member is attached to the outer case radial section and has a sealing lip sealingly engaged with the axial section of the inner case. An annular positioner is coupled with the inner case and has a radial section engageable with the axial end of the bearing inner ring so as to locate the inner case at a desired position along the central axis.