The Bergquist Torrington' Company

Torrington Research Company

Drew M Rocky

Russel Hugh Marvin

John F O'Connor, Jr

Carey L Linkovich

Edwin R Chadwick

A method is provided for balancing a rotating member having an annular balancing groove which is configured to receive and retain a balancing projectile. The method includes determining a circumaxial imbalance location, and firing a balancing projectile in timed relationship with the rotation of the member so that the balancing projectile enters the groove at the imbalance location. Such steps are repeated as required to cure additional points of imbalance.

Rotatable member with an annular groove for dynamic balancing during rotation

A rotatable member is adapted for dynamic balancing by the addition of balancing weights in the form of high speed projectiles fired at the member during rotation in timed relationship with the rotation of the member so as to impact the member at specific circumaxial locations required for balancing the member. The member has an annular groove for receiving the projectiles and securing the same at the desired locations. The groove has a cross sectional configuration slightly smaller than that of the projectile in at least one direction of measurement so as to engage and capture the projectile in retention in the groove.

An improved bearing mount sleeve and method of making same. The sleeve has a radial flange and body portion projecting therefrom. First and second shoulders in the body portion seat large and small bearings respectively. Crush ribs apply radial preloading and wave washers apply axial preloading. The sleeve is located by tabs on its flange and a locating element projecting from the end opposite the flange A series of drawing steps result in the sleeve form and piercing and forming steps complete the sleeve at economic advantage.

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Woodbury, CT, United States of America

Drew M Rocky