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Disassembly method for Needle bearing

- Jul 17, 2018 -

Disassembly method

tapping method


The striking force is generally added to the inner ring of the bearing. The shielding force of the shielding room should not be added to the rolling body and the cage of the bearing. This method is simple and easy to do, but it easily damages the bearing. When the bearing is at the end of the shaft, the bearing is located at the end of the shaft with a copper rod or other soft metal material less than the inner diameter of the bearing, and the lower part of the bearing is added to the bottom, and the hammer is knocked lightly with the hammer. It can be removed. Applying this method, we should pay attention to the proper placement of cushion blocks, and the focal points should be correct. [1]

Thermal dismantling


It is used to remove tight matching bearings. First, the oil heated to 100 degrees or so is poured into the bearing to be disassembled by the oil pot. When the bearing ring is heated and expanded, the bearing can be pulled out by the puller. [1]

Push pressure method


Press the bearing with the press, the work is stable and reliable, and will not damage the shielding room of machine and bearing. The press is manually pushed and pressed by mechanical or hydraulic presses. Note: the point of the press should be on the center of the shaft, and it should not be biased. [1]

Pull out method


When a special puller is used, the bearing will be pulled out slowly when the handle is rotated. When the bearing outer ring is detachable, the bending angle of the two legs should be extended outwards; when the bearing inner ring is detachable, the two feet of the pulling device should be inward and clamped on the end face of the bearing inner ring


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