A hydraulic puller is a specialized mechanical tool used for removing press-fitted or tightly secured parts such as bearings, gears, pulleys, and other components from shafts or other machine parts. This type of tool is particularly useful in industrial maintenance, repair, and assembly operations.
Hydraulic pullers utilize hydraulic force to exert a controlled, powerful pulling action. They consist of several key components:
Hydraulic Cylinder: The hydraulic cylinder is the main part of the tool that generates the hydraulic force. When hydraulic fluid is pressurized within the cylinder, it pushes a piston or plunger, creating a pulling force.
Pulling Attachments: Hydraulic pullers come with various types of pulling attachments, such as jaws, hooks, or arms, designed to securely grip the part to be removed. These attachments are typically interchangeable to accommodate different types and sizes of parts.
Pump and Hydraulic System: A hydraulic pump is used to pressurize the hydraulic fluid, typically oil. The pump may be manually operated, powered by a hand pump, or connected to an external hydraulic power source for more significant force.