Patent ID: 8522643

Claim:
A cam follower for a high-pressure fuel pump or for a valve drive of an internal combustion engine with quantity or quality regulation, comprising: a housing having opposing sidewalls, each having a bore; a pocket formed between the opposing sidewalls of the housing, the pocket having inner opposing sidewalls; a cam roller, mounted in the pocket, the cam roller having a bore and end side faces that face the inner opposing side walls of the pocket; and a pin, which has ends, seated in the bore of the opposing sidewalls and the pin passing through the bore of the cam roller to mount the cam roller in the pocket and the cam roller running in the pocket on rolling bearing rollers such that the end side faces of the cam roller are directly next to the inner sidewalls of the pocket, wherein one of: the end side faces of the cam roller are straight surfaces and the inner sidewalls of the pocket are substantially spherical outer surfaces; and the end side faces of the cam roller are substantially spherical surfaces and the inner sidewalls of the pocket are straight surfaces, such that contact between the cam roller and the inner sidewalls of the pocket occurs at the substantially spherical outer surfaces when the cam follower runs obliquely, wherein the cam roller is an outer cylindrical piece that rolls around the pin on the rolling bearing rollers.