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1. WO1997042424 - CHAPEAU DE PALIER POUVANT ETRE REPOSITIONNE AVEC PRECISION

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

We claim :
1. In a bearing cap of the type which is bolted to a bearing support structure so as to define a bearing bore between said cap and said structure and in which bolt holes for securing said cap to said structure extend through feet of said cap and into said structure, said cap having at least two of said feet, one said foot on each side of said bore with at least one bolt hole extending through each said foot, the improvement wherein:
said cap is sintered powder metal and has an integral boss protruding from said foot around said bolt hole.

2. The improvement of claim 1, wherein said boss is tapered.

3. The improvement of claim 1, wherein axial splines are provided on the outside of said boss.

4. The improvement of claim 1, wherein a lead-in radius is provided on a leading edge of said boss .

5. The improvement of claim 1, wherein said bearing cap is made of a liquid phase sintering powder metal material .

6. The improvement of claim 5, wherein said material is a powder metal alloy of iron containing phosphorus from ferrophosphorus powder.

7. The improvement of claim 6, wherein said material has a phosphorus content of 0.4 to 0.7% and a carbon content of 0 to 0.8%.

8. The improvement of claim 7, wherein said material has a copper content of 0 to 4%.

9. The improvement of claim 1, wherein a moat is formed in each said foot around a trailing end of said boss .

10. The improvement of claim 1, wherein said boss is oblong with a major axis in an axial direction relative to said bearing bore.

11. The improvement of claim 1, wherein each said foot has a planar surface which abuts a planar surface of said bearing support structure, and wherem a void is formed in said planar surface.

12. In a bearing block of the type in which a bearing cap is bolted to a bearing support structure so as to define a bearing bore between said cap and said structure and in which bolt holes for securing said cap to said structure extend through feet of said cap and into said structure, said cap having at least two of said feet, one said foot on each side of said bore with a bolt hole extending through each said foot, the improvement wherein: said cap is sintered powder metal and has an integral boss protruding from said foot around said bolt hole;
said support structure has a counterbore around said bolt hole for receiving said boss; and
said boss and said support structure plastically conform to one another when said boss is seated in said counterbore.