I used to work at an Allis Chalmers dealer in the 80s and we had a belt and bearing cross reference book that converted AC part numbers to SKF,Timken, Gates etc.
 Is anyone aware of one for Oliver part numbers  <!-- s:?: --><img src="{SMILIES_PATH}/icon_question.gif" alt=":?:" title="Question" /><!-- s:?: --> 
Thanks
Kevin