The split collet is pushed into the centre of the bearing and then expanded via the hex nut on the end of the collet until a secure grip is achieved. The slide hammer is then attached providing the necessary extracting force.
A puller is a specialized tool used to remove or extract objects such as gears, bearings, pulleys, and other components that are pressed onto a shaft or otherwise tightly fitted onto another part. Pullers typically use mechanical force, such as a threaded screw or hydraulic pressure, to create a pulling action and separate the object from the component it is attached to.
At Partsformachines...