Abstract A bearing comprises a ball-race received in a sliding element, the sliding element and an armature being located within a casing. The armature and the sliding element are adapted to allow the ball-race to move axially along a shaft passing through it and angularly about its centre. The casing may comprise two symmetrical portions defining an internal cylindrical guide surface on which the cylindrical armature can slide, the sliding element comprising two cups with part-spherical internal faces on which the external ring of the ball-race can slide, this outer ring having a part-spherical outer surface with the same radius as the internal surface of the cups. Alternatively the casing may include two symmetrical portions defining a part-spherical internal surface, the armature being in two pieces having a peripheral part-spherical surface of the same radius as the partspherical surface of the casing, the armature enclosing a cylindrical ring in which is located for sliding movement a conventional ball bearing. Elastic means are inserted between the armature and the sliding elements to take up play. Protective elements may be placed inside and outside the casing to protect the bearing against solid or liquid impurities.
A bearing comprising: a casing having an inner surface in the form of a body of revolution; means on said casing for attaching it to a support; an armature in contact with said inner surface of said casing; a sliding element within said armature; an elastic member between said armature and said sliding element, adapted to take up play therebetween; and a ball-race carried in said armature.
Claim 2
Dependent Claim
67 words
A bearing comprising: a casing having an inner surface in the form of a body of revolution; means on said casing for attaching it to a support; an armature in contact with said inner surface of said casing; a sliding element within said armature; an elastic member between said armature and said sliding element, adapted to take up play therebetween; and a ball-race carried in said armature.
Claim 3
Dependent Claim
82 words
A bearing as set forth in claim 1, wherein said casing comprises two symmetrical parts, said armature is cylindrical and contains said sliding element which comprises two cups with part-spherical internal surfaces, and said ball-race has an outer ring with part-spherical profile of the same diameter as said internal surfaces of said cups, the outer surface of said outer ring being in contact with said internal surfaces for free sliding movement thereon, elastic rings being disposed between said cups and said armature.
Claim 4
Dependent Claim
74 words
A bearing as set forth in claim 1, wherein said casing comprises two symmetrical parts having part-spherical internal surfaces and said armature has a part-spherical outer surface engaging said part-spherical internal surfaces of said casing for free sliding movement thereon, and further comprising a ring within which said ball-race is located for free axial sliding movement, said ring being located within said armature and elastic means being located between said armature and said ring.
Claim 5
Dependent Claim
24 words
A bearing as set forth in claim 1, further comprising protective elements within and without said casing to protect said ball-race from foreign matter.