Stiff cross roller bearing configuration
AssigneeNewport Corporation
InventorMullard A. Nunnally
Life of this patent
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Abstract
A translation table with a pair of bearing assemblies located between a first element and a second element. Each bearing assembly has a pair of roller bearings located at one end of a bearing separator strip, and another pair of roller bearings located at an opposite end of the separator strip. There are no bearings located between the outer pairs of roller bearings. Providing a roller bearing assembly with no roller bearings in the inner portion of the separator strip creates a relatively stiff bearing assembly.
Claims11
A roller bearing assembly that is located between a first element and a second element, comprising:
- a bearing separator strip that has a first end and a second end;
- a first pair of roller bearings located at said first end of said bearing separator strip;
- and,
- a second pair of roller bearings located at said second end of said bearing separator strip, said second pair of roller bearings being separated from said first pair of roller bearings by inner portion of said bearing separator strip that has no roller bearings and is not in contact with or mechanically coupled to the first and second elements, said inner portion having a distance that is greater than a spacing between adjacent roller bearings.
A translation table, comprising:
- a first element;
- a second element that can move relative to said first element;
- a first bearing separator strip that has a first end and a second end, said first bearing separator strip being located between said first and second elements;
- a first pair of roller bearings located at said first end of said first bearing separator strip;
- and,
- a second pair of roller bearings located at said second end of said first bearing separator strip, said second pair of roller bearings being separated from said first pair of roller bearings by an inner portion of said first bearing separator strip that has no roller bearings and is not in contact with or mechanically coupled to said first and second elements, said inner portion having a distance that is greater than a spacing between adjacent roller bearings.
Dependencies are inferred from the claim text.