Anchor puller for pressing bearings out of blind holes

When repairing flywheels, pumps, drive pulleys and other mechanisms, it may be necessary to remove a pressed-in bearing that cannot be reached with any hand tool. A homemade puller that grabs the bearing by the inner race will help you get out of this problem.

Materials:

• expansion anchor M10;
  
• any large bolt and nut;
  
• thick-walled steel strip;
  
• square 20x20 mm.

Puller manufacturing process

The heads of the large bolt and the anchor bolt must be securely welded together.

Next, the U-shaped frame is welded. Its crossbar is made from a square with a hole in the center, and the side posts are made from strips. The hole must be drilled to the diameter of the large bolt.



A side flag made of a strip 40-60 mm long is welded to the heads of the welded bolts. Then you need to screw the anchor sleeve to the end and cut off the protruding part of the standard bolt flush with the cone nut.



To remove the bearing, you need to insert an anchor into the inner race, and holding it by the spacer sleeve, unscrew the bolt by rotating the flag.The sleeve will open and lock into the bearing. Next, the frame is put on and pressed on top with a nut through a washer. When you tighten the nut with a wrench, the bearing will come out. After dismantling it, you need to turn the spacer sleeve several times and the puller will be released.

Watch the video