904 Governor Support

Does anyone know if a roller-ized governor support exists for the 904? maybe it isn't necessary for the mild performance stuff. Was just curious. At the parts house checking on Timken parts, they don't show a bearing that has the same shaft diameter as the 904. 904 shaft dia. at the support is 1.33. The bearings shown skip that odd size. 1.312 then 1.375. I understand this is not needed in most applications. Thanks for any info!!