Retaining element for a roller bearing
First Claim
Patent Images
1. A roller bearing, comprising:
- an inner ring having an inner ring track with an inner radius (RI),an outer ring having an outer ring track with an outer radius (RA),a plurality of cylindrical roller bodies disposed between the inner ring and the outer ring, wherein center points of the respective roller bodies are disposed along a pitch circle having a pitch circle radius (RT), anda plurality of discrete retaining elements, wherein one retaining element is disposed between two adjacent roller bodies, each retaining element satisfying the following conditions;
each retaining element extends radially inward from the pitch circle over at least 90% of the difference (RT−
RI) between the pitch circle radius (RT) and the inner radius (RI) and extends radially outward from the pitch circle over less than or equal to 50% of the difference (RA−
RT) between the outer radius (RA) and the pitch circle radius (RT),wherein each retaining element is configured such that it extends radially inward from the pitch circle a distance that is approximately 100% of the difference (RT−
RI) between the pitch circle radius (RT) and the inner radius (RI).
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Abstract
A retaining element is disposed between two adjacent roller bodies of a roller bearing having an inner ring and an outer ring. The inner ring has an inner ring track with an inner radius and the outer ring has an outer ring track with an outer radius. Center points of the roller bodies are disposed along a pitch circle having a pitch circle radius. The retaining element extends radially inward from the pitch circle over at least 90% of the difference between the pitch circle radius and the inner radius and extends radially outward from the pitch circle over up to 50% of the difference between the outer radius and the pitch circle radius or vice versa.
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Citations
18 Claims
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1. A roller bearing, comprising:
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an inner ring having an inner ring track with an inner radius (RI), an outer ring having an outer ring track with an outer radius (RA), a plurality of cylindrical roller bodies disposed between the inner ring and the outer ring, wherein center points of the respective roller bodies are disposed along a pitch circle having a pitch circle radius (RT), and a plurality of discrete retaining elements, wherein one retaining element is disposed between two adjacent roller bodies, each retaining element satisfying the following conditions; each retaining element extends radially inward from the pitch circle over at least 90% of the difference (RT−
RI) between the pitch circle radius (RT) and the inner radius (RI) and extends radially outward from the pitch circle over less than or equal to 50% of the difference (RA−
RT) between the outer radius (RA) and the pitch circle radius (RT),wherein each retaining element is configured such that it extends radially inward from the pitch circle a distance that is approximately 100% of the difference (RT−
RI) between the pitch circle radius (RT) and the inner radius (RI). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A cylindrical roller bearing, comprising:
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an inner ring having an inner ring track with an inner radius (RI), an outer ring having an outer ring track with an outer radius (RA), a plurality of cylindrical roller bodies disposed between the inner ring and the outer ring, wherein center points of the respective roller bodies define a pitch circle having a pitch circle radius (RT), and a plurality of discrete retaining elements being disposed in an alternating manner with the plurality of cylindrical roller bodies around the circumferential direction of the cylindrical roller bearing, each retaining element having concave surfaces facing the respective adjacent roller bodies, the concave surfaces having a radius of curvature that is about 110% to 125% of the radius of the roller bodies, and each retaining element satisfies one of the following conditions (i) and (ii); (i) the concave surfaces of each retaining element extend radially inward from the pitch circle over at least 90% of the difference (RT−
RI) between the pitch circle radius (RT) and the inner radius (RI) and extend radially outward from the pitch circle over less than or equal to 50% of the difference (RA−
RT) between the outer radius (RA) and the pitch circle radius (RT), or(ii) the concave surfaces of each retaining element extend radially outward from the pitch circle over at least 90% of the difference (RA−
RT) between the outer radius (RA) and the pitch circle radius (RT) and extend radially inward from the pitch circle over less than or equal to 50% of the difference (RT−
RI) between the pitch circle radius (RT) and the inner radius (RI),wherein the retaining elements prevent direct contact of adjacent roller bearings and the retaining elements are configured so as to avoid contact with the inner ring track and the outer ring track during operation.
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Specification