Cam Follower Device
AssigneeAktiebolaget Skf
InventorsBenoît Hauvespre, Aurelien Ghilbert-Simon
Life of this patent
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Abstract
The cam follower roller device comprises a body 12, a roller 14, and a shaft 16 mounted on the body 12 and comprising an outer seat for mounting the roller to rotate. The roller comprises an inner surface 14a radially surrounding the seat and is mounted able to rotate with respect to the shaft. The outer seat of the shaft and/or the inner surface 14a of the roller comprise a plurality of cavities. The ratio of the sum of the surfaces areas of the cavities to the total surface area of the outer seat, or of the inner surface, in which the cavities are formed is between 2% and 40%. The cavities have a depth between 0.5 μm and 5 μm.
Claims11
A cam follower roller device comprising:
- a body,
- a roller, and
- a shaft mounted on the body and having an outer seat for mounting the roller to rotate, the roller providing an inner surface radially surrounding the seat and being mounted able to rotate with respect to the shaft, wherein
- one of the outer seat of the shaft and the inner surface of the roller has a plurality of cavities, and one of the ratio of the sum of the surface areas of the cavities to the total surface area of the outer seat, and of the inner surface, in which the cavities are formed being between 2% and 40%, the cavities having a depth between 0.5 μm and 5 μm.
Dependencies are inferred from the claim text.