The Torrington Company

Michael J Hartnett

Robert Lugosi

Jeffrey A Clark

John P Cook

James Rollins

Chris J Robinson

Edwin B Tharp

Axially spaced cams and bearing rings mounted on a tube are permanently secured to the tube by circumferentially spaced projections on the tube extending into grooves formed on the inside surfaces of the cams and bearing rings.

Method of making a camshaft for reciprocating piston engines

Camshaft for reciprocating piston engines

Each roller in a roller bearing has varying diameters along its length. The longitudinal surface is formed along varying radii of curvature. The diameters are functions of the contact stress along the roller, the length of the roller, any angular misalignment, and the effective diameter of the bearing. The varying diameters are such that a uniform contact stress is placed on each roller. If desired instead of the rollers, a race may be shaped to cause the uniform contact stress.

Roller bearing with specially constructed rollers

An annular cage for the rollers of a bearing is located in the annular space between two bearing races and is normally spaced from both races when concentric. The cage is so constructed that, when unbalanced forces on the cage during rotation in the bearing tend to move the cage from its concentric position into contact with a piloting surface, hydrodynamic forces are developed which act to keep the cage out of contact with that surface.

Bearing with bearing cage

Growing community of inventors

Woodbury, CT, United States of America

Michael J Hartnett