HYDRAULIC BEARING PULLER

Now a day’s hydraulic system plays very important role in almost all the application. As in automobile industries, small service center, aircraft industries and other departments where precision is required. This review focuses on study and development of concept design of Hydraulic based bearing remover. Traditional the method of bearing removal or installation is hammering, but unnecessary hammering causes several problems. The unsafe and excessive hammering cause’s damaging of bearing surface or sometimes chances of failure and excessive human effort is required. While the conventional Hydraulic puller using pump are costly, huge, and high at maintenance. In order to remove bearing safely, we have to design new method by eliminating huge Hydraulic Pumps, reducing size of Cylinder, and produce large amount of force by applying minimum effort. The new design should be easy for removal of bearing or gear from the shaft. The hydraulic bearing puller is based on hydraulic system on the principle of Pascal’s law which states that “pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere”. In this paper we have studied various existing methods for bearing removal, consisting of Mechanical Jack Screw Puller, Hydraulic bearing remover using Pump, Hydraulic bearing puller and pusher using hydraulic jack.