| Patent Number |
Title Of Patent |
Date Issued |
| 6282789 |
Method of manufacturing traction rollers for continuously variable transmissions and traction ro |
September 4, 2001 |
| A method of manufacturing a traction roller for a continuously variable transmission comprises placing a layer on a hollow cylindrical material having the volume substantially equal to the traction roller, performing axial pressure forging of the cylindrical material to obtain a work hav |
| 5976053 |
Method of manufacturing traction rollers for continuously variable transmissions and traction ro |
November 2, 1999 |
| A method of manufacturing a traction roller for a continuously variable transmission comprises placing a layer on a hollow cylindrical material having the volume substantially equal to the traction roller, performing axial pressure forging of the cylindrical material to obtain a work hav |
| 5718774 |
Method of producing bevel gear |
February 17, 1998 |
| A method of producing a bevel gear is provided. The method comprises the steps of forging, from a case hardened and heated blank, a rough shaped bevel gear intermediate product having a toothed portion, outer burrs at a larger diameter end thereof and between adjacent teeth of the toothe |
| 5516376 |
Method of, and apparatus for manufacturing a gear with a central through hole |
May 14, 1996 |
| A hardened surface layer is formed in the region of inner and outer surfaces of a hollow material having a central through hole, then the hollow material is hot-forged into a hollow gear-like forged body by a forging die having a first die element with a piercing punch entering into |
