Method of Manufacturing Split Bearing Races

Abstract

A method of manufacturing or forming a split bearing race for an angular contact roller bearing is provided. The method includes the steps of: A) forming a generally annular blank having a first annular portion, a second annular portion, and a third annular portion disposed between the first and second annular portions, the third annular portion having a thickness greater than the thickness of the first and second annular portions; B) machining at least one of the first, second, and third annular portions; and C) forming a first and second race member of the split bearing race by bifurcating the generally annular blank along the third annular portion. The method may also include the steps of: D) heat treating the generally annular blank after machining at least one of the first, second, and third annular portions; and E) finish machining the generally annular blank subsequent to the heat treating.

1 . A method of manufacturing a split bearing race for an angular contact roller bearing comprising:
 forming a generally annular blank having a first annular portion, a second annular portion, and a third annular portion disposed between said first and second annular portions;   wherein said third annular portion has a thickness greater than the thickness of said first and second annular portions;   machining at least one of said first, second, and third annular portions; and   forming a first race member and a second race member of the split bearing race by bifurcating said generally annular blank along said third annular portion.   
     
     
         2 . The method of manufacturing a split bearing race of  claim 1 , wherein the split bearing race is an inner bearing race. 
     
     
         3 . The method of manufacturing a split bearing race of  claim 1 , wherein forming said generally annular blank includes hot rolling. 
     
     
         4 . The method of manufacturing a split bearing race of  claim 1 , further comprising heat treating said generally annular blank after machining at least one of said first, second, and third annular portions. 
     
     
         5 . The method of manufacturing a split bearing race of  claim 4 , further comprising finish machining said generally annular blank subsequent to said heat treating. 
     
     
         6 . The method of manufacturing a split bearing race of  claim 5 , wherein said finish machining of said generally annular blank subsequent to said heat treating is performed by grinding. 
     
     
         7 . A method of manufacturing a split bearing race for an angular contact roller bearing comprising:
 forming a generally annular blank having a first annular portion, a second annular portion, and a third annular portion disposed between said first and second annular portions;   wherein said third annular portion has a thickness greater than the thickness of said first and second annular portions;   wherein forming said generally annular blank includes hot rolling;   machining at least one of said first, second, and third annular portions; and   forming a first race member and a second race member of the split bearing race by bifurcating said generally annular blank along said third annular portion.   
     
     
         8 . The method of manufacturing a split bearing race of  claim 7 , further comprising heat treating said generally annular blank after machining at least one of said first, second, and third annular portions. 
     
     
         9 . The method of manufacturing a split bearing race of  claim 8 , further comprising finish machining said generally annular blank subsequent to said heat treating. 
     
     
         10 . The method of manufacturing a split bearing race of  claim 9 , wherein said finish machining of said generally annular blank subsequent to said heat treating is performed by grinding. 
     
     
         11 . A method of manufacturing a split bearing race for an angular contact roller bearing comprising:
 forming a generally annular blank having a first annular portion, a second annular portion, and a third annular portion disposed between said first and second annular portions;   wherein said third annular portion has a thickness greater than the thickness of said first and second annular portions;   wherein forming said generally annular blank includes hot rolling;   machining at least one of said first, second, and third annular portions;   heat treating said generally annular blank after machining at least one of said first, second, and third annular portions;   finish machining said generally annular blank subsequent to said heat treating by grinding said generally annular blank; and   forming a first race member and a second race member of the split bearing race by bifurcating said generally annular blank along said third annular portion.