Bearing pullers are tools used for removing bearings, and they can be classified into several main types based on their design and purpose:

1. Internal Jaw Type Bearing Puller: The jaws of this puller are designed to insert into the inner race (inner ring) of the bearing. By adjusting the bolt or handle, force is applied to pull the bearing off the shaft. This design is typically used for removing bearings without damaging other components on the shaft.

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3. External Jaw Type Bearing Puller: The jaws of this type of puller are designed to insert into the outer race (outer ring) of the bearing. By adjusting the bolt or handle, force is applied to pull the bearing from the shaft or housing. This design is suitable for removing bearings from the outside.

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5. Two-Jaw Bearing Puller: This type of bearing puller has two jaws that can grip on both sides of the bearing. By adjusting the jaws on both sides, force can be evenly applied to subject the bearing to uniform tension.

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7. Three-Jaw Bearing Puller: Similar to the two-jaw type, but with three jaws, this design allows for a more even distribution of force and is suitable for larger diameter bearings.

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9. Mechanical Bearing Removal Tools: These tools are often specialized mechanical devices suitable for larger bearings or more complex applications. They may have more adjustment options to accommodate different types and sizes of bearings.
   

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11. Hydraulic Bearing Puller: The primary advantage of hydraulic bearing pullers is that they provide greater pulling force, and their operation is relatively easy to control. They are often used in tasks that require larger forces or involve more complex bearing disassembly. When using a hydraulic bearing puller, it is important to ensure the correct hydraulic pressure to prevent damage to the bearing or other mechanical components. Similarly, strict adherence to the manufacturer's guidelines for operation and maintenance of the hydraulic bearing puller is essential.