Abstract: A milling machine can include a frame, a milling assembly including a cutting rotor and a rotor housing coupled to the frame, the cutting rotor including a rotor shell positioned around a spindle, and a first axial alignment feature on one of the rotor shell or the spindle, the first axial alignment feature including a physical feature on a surface of the rotor shell or the spindle, the physical feature being positioned and configured to contact an opposing flat surface of the opposing rotor shell or spindle so as to guide the rotor shell and the spindle into a co-axial alignment as the rotor shell is loaded axially onto the spindle.

Abstract: A milling machine can include a frame, a milling assembly coupled to the frame, the milling assembly including a rotor housing and a cutting rotor, the cutting rotor including a rotor shell positioned around a spindle, and a removable support ring positioned on an inner surface of the rotor shell, wherein the support ring is positioned between the rotor shell and the spindle, wherein the support ring is separate from the rotor shell and carries a load of the rotor shell from the spindle.

Abstract: A milling rotor of a milling machine can include a drum, cutting teeth, and a centering ring. The drum can extend along a longitudinal axis and can define an inner surface and an opposing outer surface. The drum can be securable to a drive assembly of the milling machine to allow the drum to rotate therewith. The cutting teeth can be connected to the outer surface of the drum and can be configured to engage pavement. The centering ring can be connected to the inner surface of the drum and can include a centering interface and an alignment interface. The centering interface can extend radially inward and can be engageable with a centering flange of the drive assembly to center the milling rotor with respect to the drive assembly. The alignment interface can be adjacent the centering interface and can extend radially inward of the centering interface.

Abstract: A milling rotor of a milling machine can include a drum, cutting teeth, and a centering ring. The drum can extend along a longitudinal axis and can define an inner surface and an opposing outer surface. The drum can be securable to a drive assembly of the milling machine to allow the drum to rotate therewith. The cutting teeth can be connected to the outer surface of the drum and can be configured to engage pavement. The centering ring can be connected to the inner surface of the drum and can include a centering interface and an alignment interface. The centering interface can extend radially inward and can be engageable with a centering flange of the drive assembly to center the milling rotor with respect to the drive assembly. The alignment interface can be adjacent the centering interface and can extend radially inward of the centering interface.

Abstract: A mobile milling machine includes a cutting rotor disposed along a rotor drum delineating a drum rotation axis and accommodated in a rotor chamber delineated by chamber enclosure. To rotatably support the rotor drum with respect to the chamber enclosure, the rotor drum can include a bearing end and the chamber enclosure can include a bearing bore that are adapted to form a drum bearing assembly. The drum bearing assembly may include a bearing hub and a bushing configured to make a sliding frictional contact along complementary taper surfaces. The floating bushing may be floatingly retained in a chamber door of the chamber enclosure.

Abstract: An apparatus includes a rotating drive component for a drive train, the rotating drive component comprising a first rotating element and a second rotating element, wherein the first rotating element and the second rotating element are arranged in a concentric arrangement such that the second rotating element is positioned within the first rotating element; and a shear element extending radially between and coupled to each of the first rotating element and the second rotating element, the shear element having a lower breaking strength than other components in the drive train, wherein if the shear element breaks, the first rotating element and the second rotating element are decoupled from each other and rotate independently of each other.

Abstract: An apparatus includes a rotating drive component for a drive train, the rotating drive component comprising a first rotating element and a second rotating element, wherein the first rotating element and the second rotating element are arranged in a concentric arrangement such that the second rotating element is positioned within the first rotating element; and a shear element extending radially between and coupled to each of the first rotating element and the second rotating element, the shear element having a lower breaking strength than other components in the drive train, wherein if the shear element breaks, the first rotating element and the second rotating element are decoupled from each other and rotate independently of each other.