Jtekt Bearings North America LLC

Jtekt Corporation

Koyo Bearings North America LLC

Koyo Bearings USA LLC

Justin Brubaker

Gento Aramoto

Trent Carpenter

Christopher Bean

Ken Anderson

Daniel J Schertz

Dana Patoine

Robert Lukasiewicz

A ball screw assembly having a ball screw nut including an outer surface, an inner surface defining a central bore, and a ball track defined by the inner surface, a ball screw shaft including an outer surface defining a ball track, the ball screw shaft being disposed in the central bore so that the two ball tracks form a ball raceway, a first stopper disposed at a first end of the ball screw nut within the ball raceway, a plurality of main balls forming a ball train disposed in the ball raceway, a main spring assembly disposed in the ball raceway between a first end of the ball train and the first stopper, and a strain sensing element affixed to a flat surface portion defined by the outer surface of the ball screw nut.

Ball screw assembly with integral force measurement

A ball screw having a threaded stem including a ball groove formed in an outer surface thereof, a ball nut including a central bore formed by an inner surface thereof, the inner surface defining a ball groove, a first recess extending inwardly from an end face of the ball nut and into the ball groove of the inner surface, and a stop pin disposed in the first recess so that a first end of the stop pin extends inwardly into the ball groove of the inner surface of the ball nut, wherein the stop pin is formed by a coiled strip of metal.

Stop pin for a ball screw assembly

A ball screw assembly having a ball nut including a first end, a second end, a central bore, and a ball track defined by the inner surface, a ball screw shaft including an outer surface defining a ball track, the ball screw shaft being disposed in the central bore so that the ball tracks form a ball raceway, a first stopper disposed within the ball raceway, a plurality of main balls forming a ball train, the ball train being disposed in the ball raceway, and a main spring assembly disposed in the ball raceway between a first end of the ball train and the first stopper, wherein a spring constant of the first spring portion is greater than a spring constant of the second spring portion.

Segmented spring for a ball screw

A vibration isolator for use between a support structure and a roller thrust bearing including a first race, a second race, a bearing cage and at least one roller element. The vibration isolator includes a radially extending portion with a mating surface, a bearing surface, an inner peripheral edge and an outer peripheral edge, the radially extending portion being substantially disk-shaped. An annular flange extends axially from one of the inner peripheral edge and the outer peripheral edge of the radially extending portion, and at least one groove is defined by the mating surface of the radially extending portion. The bearing surface is configured to abut one of the first race and the second race and the mating surface is configured to abut the support structure such that a void is defined between the at least one groove and the support structure.

Roller thrust bearing vibration isolator

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Greenville, SC, United States of America

Justin Brubaker