Ball bushing with axial extending ball guides

Ball bushing arrangement for an axially elongated ball guide for shafts and the like comprising a housing having an axially elongated bore therethrough, an axially elongated tubular shaped cage positioned within said housing bore and having a plurality of endless ball loops therein extending in the axial direction of the cage, said cage having a radially inner surface and a radially outer surface, said ball loops spaced circumferentially apart around said cage and each containing a plurality of balls, each said loop having a first ball duct for a row of loaded balls and a second ball duct for a row of unloaded balls, each first ball duct being open through the radially inner and radially outer surfaces of said cage, each said ball loop arranged with said first ball duct therein adjacent to said first ball duct in the adjacent said ball loop along one axially extending side and said second ball duct therein adjacent to said second ball duct in the adjacent said ball loop along the other axially extending side, a joint race insert extending in the axial direction of said race along the radially outer surface and covering two adjacent said first ball ducts, wherein the improvement comprises that each said joint race insert is formed of a thin wall material which is elastic with respect to bending forces and is unyielding in the thickness direction thereof, said joint race insert being displaceable by said balls in said first ball ducts radially outwardly against the surface of said housing bore laterally enclosing said ball bushing.