Rolling element guide rail, method for manufacturing rolling element guide rails, linear guide rail, linear ball bearing and linear guide carriage
AssigneeFesto AG & Co.
InventorHeinz GREINER
Life of this patent
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Abstract
Rolling element guide rail for a linear rolling bearing, having a profile body on which at least one rolling element running surface extends along a straight line of movement with a constant profiling and is designed for a rolling movement of a rolling element, and on which two guide surfaces each extend along the straight line of movement with a constant profiling and are designed to be accommodated in a guide groove of a bearing housing, a breaking edge being formed on at least one of the guide surfaces.
Claims8
1-14. (canceled)
A rolling element guide rail for a linear rolling bearing, comprising a profile body on which at least one rolling element running surface extends along a straight line of movement with a constant profiling and on which two guide surfaces each extend along the straight line of movement with a constant profiling, wherein a breaking edge is formed on at least one of the guide surfaces.
A method for manufacturing a plurality of rolling element guide rails, comprising the steps:
- clamping an underside of a plate-shaped material blank, which is made of a metallic material with a hardness greater than 54 HRC or of a ceramic material, onto a grinding table of a grinding machine, the plate-shaped material blank having a length which is at least equal to the length of the rolling element guide rail to be manufactured and wherein the plate-shaped material blank has a width which is at least twice a width of the rolling element guide rail to be manufactured,
- carrying out a first grinding operation on an upper side of the plate-shaped material blank facing away from the underside with a profiled grinding wheel, a width of grinding wheel corresponding at least substantially to the width of the plate-shaped material blank,
- wherein the grinding wheel is provided over its width with at least two profiles, each of the profiles corresponding to an upper side profiling for the rolling element guide rail to be manufactured,
- wherein a fracture groove is ground into the plate-shaped material blank by the profiled grinding wheel between adjacent rolling element guide rails.
Dependencies are inferred from the claim text.