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US 12,203,505 B2Granted
Large rolling bearing
AssigneeLiebherr-Components Biberach GmbH
InventorsAndreas Palmer, Robert Zell, Markus Ruf, Michael Fuchs
Life of this patent
Estimating the term…
Abstract
The invention relates to a rolling bearing, in particular a center-free large rolling bearing, comprising two concentric races, of which one race has a groove open toward the other race and the other race has a lug ring, which engages in said groove, the lug ring being supported on the groove by means of at least two thrust bearings and at least one radial bearing, said axial bearings being designed as roller bearings, all the radial bearings being designed as ball bearings.
Claims14
A center-free large rolling bearing comprising:
- exactly two axial bearings;
- exactly one radial bearing;
- a first race having a first track;
- and
- a second race having a second track, wherein the second race is concentric with the first race, wherein the first race has a groove open toward the second race, wherein the second race has a lug ring which engages in the groove, wherein the lug ring is supported on the groove by the two axial bearings and the one radial bearing, wherein the two axial bearings are configured as roller bearings, wherein the one radial bearing comprises a ball bearing,
- wherein the one radial bearing has balls, wherein a ball diameter of the balls of the one radial bearing is smaller than a roller diameter of the two axial bearings,
- wherein the first race having the groove has a split configuration having a split plane between the one radial bearing and one of the two axial bearings,
- wherein the balls of the one radial bearing are installed with a preload against the first track and the second track, wherein a curvature of the first track and the second track, which occurs in an undeformed state of the first track and the second track, has a radius smaller than a radius of the balls of the one radial bearing, wherein elastic deformation of the balls of the one radial bearing and of the first track and the second track occurs due to the preload,
- wherein the first track and the second track are each configured in the form of a two-point contact track,
- wherein the curvature of the first track and the second track is in a cross-sectional plane having a bearing axis of rotation.
7 more elements
A center-free large rolling bearing comprising:
- exactly two axial bearings;
- exactly one radial bearing;
- a first race having a first track;
- and
- a second race having a second track, wherein the second race is concentric with the first race, wherein the first race has a groove open toward the second race, wherein the second race has a lug ring which engages in the groove, wherein the lug ring is supported on the groove by the two axial bearings and the one radial bearing, wherein the two axial bearings are configured as roller bearings, wherein the one radial bearing comprises a ball bearing,
- wherein the one radial bearing has balls, wherein a ball diameter of the balls of the one radial bearing is smaller than a roller diameter of the two axial bearings,
- wherein the first race having the groove has a split configuration having a split plane between the one radial bearing and one of the two axial bearings,
- wherein the balls of the one radial bearing are installed with a preload against the first track and the second track, wherein a curvature of the first track and the second track, which occurs in an undeformed state of the first track and the second track, has a radius smaller than a radius of the balls of the one radial bearing, wherein elastic deformation of the balls of the one radial bearing and of the first track and the second track occurs due to the preload,
- wherein the first track and the second track are each configured in the form of a two-point contact track,
- wherein the ball diameter of the balls of the one radial bearing ranges from 40% to 60% of the roller diameter of the roller of the axial bearings,
- wherein the split plane dividing the first race into two race parts, is ranged between the one radial bearing and one of the two axial bearings such that the split plane is spaced apart in an axial direction from each of the one radial bearing and the one of the two axial bearings, and
- wherein the curvature of the first track and the second track is in a cross-sectional plane having a bearing axis of rotation.
9 more elements
Dependencies are inferred from the claim text.