Sliding member
AssigneeRiken
InventorIkurou TAKAHASHI
Life of this patent
Estimating the term…
Abstract
According to one aspect of the present invention, a sliding member includes: a sliding surface against which an outer surface of a cam abuts; and a groove having a spiral shape or a plurality of grooves having an annular shape, which are provided on the sliding surface. The sliding surface includes a central region having a circular shape and including a center of the sliding surface, and a first annular region located outside the central region. A ratio RC of a width L2 of the groove to a pitch L1 of the groove in the central region is larger than a ratio RO1 of the width L2 of the groove to the pitch L1 of the groove in the first annular region.
Claims17
A sliding member comprising:
- a sliding surface against which an outer surface of a cam abuts;
- and
- a groove having a spiral shape or a plurality of grooves having an annular shape, which are provided on the sliding surface,
- wherein the sliding surface comprises a central region having a circular shape and including a center of the sliding surface, and a first annular region located outside the central region, and
- a ratio RC of a width L2 of the groove to a pitch L1 of the groove in the central region is larger than a ratio RO1 of the width L2 of the groove to the pitch L1 of the groove in the first annular region.
Dependencies are inferred from the claim text.