Research on the Force-Fitted Gear : 8th Report, On the Fillet Stress of the Gear Tooth in Case when Hubs of Various Shapes are force-fitted and a Solid Shaft is double force-fitted in the Hollow Hub

Abstract

The main objective of this paper is to discuss on the theoretical formula and practical equation for the fillet stress of the gear tooth in case when the hollow hub is force-fitting in the hollow hub, and also is to investigate the fillet stress in case when hollow hubs of various shapes are force-fitting. The authors measured the fillet stress of gear tooth by means of strain gauge and photo-elastic experiments for each force-fitted hub, and these experimental results were compared with calculated ones by the transform function and finite element method. Consequently the theoretical and practical formula could be introduced for the fillet stress of gear tooth with force-fitted hubs mentioned above, and it was found that calculated values agree fairly well with experimental results.