Method for manufacturing a roller, adapted to equip a mechanical system forming a cam follower or a rocker arm
AssigneeAktiebolaget Skf
InventorsBenoît Hauvespre, Julien Maffucci
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Abstract
A method for manufacturing a roller, adapted to equip a mechanical system forming a cam follower or a rocker arm. The roller is centered on a central axis and comprising: an outer cylindrical surface adapted to roll on a cam, an inner cylindrical bore adapted to receive a pin belonging to the mechanical system, and two lateral faces extending radially to the central axis. The method includes a machining step forming circular grooves that are concentric with each other on at least one of the lateral faces of the roller. The roller can be installed within a mechanical system.
Claims15
A method for manufacturing a roller, adapted to equip a mechanical system forming a cam follower, the roller being centered on a central axis and comprising:
- an outer cylindrical surface adapted to roll on a cam;
- an inner cylindrical bore adapted to receive a pin belonging to the mechanical system;
- and
- two lateral faces extending radially to the central axis, the two lateral faces each comprising a setback portion;
- the method including a step of forming first, second, and third circular grooves on at least one of the lateral faces of the roller using a machining process, wherein the circular grooves are concentric with each other and are not formed on at least one of the setback portions, such that a first distance between the first circular groove and the second circular groove directly adjacent to the first circular groove is larger or smaller than a second distance between the second circular groove and the third circular groove directly adjacent to the second circular groove, such that no other circular grooves are disposed between the first circular groove and the second circular groove, and such that no other circular grooves are disposed between the second circular groove and the third circular groove.
A mechanical system, forming one of a cam follower, the mechanical system comprising:
- at least one support element;
- a pin supported by the support element;
- and
- a roller centered on a central axis and comprising:
- an outer cylindrical surface adapted to roll on a cam,
- an inner cylindrical bore adapted to receive the pin, and
- two lateral faces extending radially to the central axis,
- a setback portion disposed on at least one of the two lateral faces, wherein first, second, and third circular grooves are formed concentric with each other on at least one of the two lateral faces of the roller and are not formed on the setback portion, such that a first distance between the first circular groove and the second circular groove directly adjacent to the first circular groove is larger than a second distance between the second circular groove and the third circular groove directly adjacent to the second circular groove, such that no other circular grooves are disposed between the first circular groove and the second circular groove, and such that no other circular grooves are disposed between the second circular groove and the third circular groove.
Dependencies are inferred from the claim text.