20240019018. RADIAL BEARING SYSTEM FOR BALL NUT AND SCREW ASSEMBLY simplified abstract (Goodrich Actuation Systems Limited)

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RADIAL BEARING SYSTEM FOR BALL NUT AND SCREW ASSEMBLY

Organization Name

Goodrich Actuation Systems Limited

Inventor(s)

Stephen Harlow Davies of Shrewsbury (GB)

RADIAL BEARING SYSTEM FOR BALL NUT AND SCREW ASSEMBLY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240019018 titled 'RADIAL BEARING SYSTEM FOR BALL NUT AND SCREW ASSEMBLY

Simplified Explanation

The abstract describes a ball nut and screw assembly, where a screw and a nut are connected. The screw has a convex groove and the nut has a concave groove, and a helical portion is formed between them. The assembly includes a first raceway with adjacent concave grooves, where a first plurality of balls are located. There are also first and second radial outboard raceways at the ends of the first raceway, formed between a concave groove in a first outboard component and the outer surface of the screw. At least one bearing ball is provided in the first radial outboard raceway.

  • The assembly consists of a screw and a nut connected together.
  • The screw has a convex groove and the nut has a concave groove, forming a helical portion.
  • A first raceway is formed between the adjacent concave grooves, where a plurality of balls are located.
  • First and second radial outboard raceways are provided at the ends of the first raceway.
  • The radial outboard raceways are formed between a concave groove in a first outboard component and the outer surface of the screw.
  • At least one bearing ball is provided in the first radial outboard raceway.

Potential Applications:

  • This ball nut and screw assembly can be used in various mechanical systems that require linear motion, such as in industrial machinery, robotics, and automotive applications.
  • It can be used in precision positioning systems, where accurate and smooth linear movement is essential.

Problems Solved:

  • The assembly provides a reliable and efficient mechanism for converting rotary motion into linear motion.
  • It ensures smooth and precise linear movement, reducing friction and wear.
  • The helical portion of the raceway allows for increased load-bearing capacity and improved efficiency.

Benefits:

  • The assembly offers improved performance and durability compared to traditional screw and nut mechanisms.
  • It provides smooth and precise linear motion, reducing vibrations and noise.
  • The increased load-bearing capacity allows for handling heavier loads.
  • The assembly is designed to minimize friction and wear, resulting in longer service life.


Original Abstract Submitted

a ball nut and screw assembly includes a screw, and a nut received on the screw. a first raceway having a helical portion is defined between a convex groove of the screw and a concave groove of the nut. the first raceway has adjacent concave grooves to provide said helical portion. a first plurality of balls are in said first raceway, and a first radial outboard raceway is provided at a first end of the first raceway and a second radial outboard raceway provided at a second end of said first raceway. the first and second outboard radial raceways are formed between a concave groove formed in a first outboard component and the outermost, external surface of the screw that is in a position between said adjacent grooves of said screw and at least a first bearing ball is provided in said first radial outboard raceway.

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