Shaft with roller bearing

Abstract

A method for producing a shaft with a roller bearing. The roller bearing has an inner ring with an outer surface for rolling elements to roll on. The inner ring of the roller bearing is embedded, at least partially, into the shaft, which has been produced using primary forming methods, and the outer surface of the inner ring is exposed, at least in a part, in the axial direction and over its entire circumference.

1 . A method for producing a balance shaft with roller bearing, wherein the roller bearing includes an inner ring, which is produced from roller bearing steel, the method comprising: inserting the inner ring into a primary forming tool of the shaft, forming the shaft by a casting or sintering method in such a manner that the inner ring is at least partially embedded and at least a portion of an outer surface of the inner ring is exposed in an axial direction over an entire circumference of the outer surface. 
     
     
         2 . The method according to  claim 1  wherein the roller bearing also includes a thrust washer and a portion of the thrust washer is embedded into the balance shaft on a side of the inner ring. 
     
     
         3 . The method according to  claim 1 , wherein after casting or sintering of the balance shaft, the outer surface of the inner ring is machined, heat-treated and finished.