How to remove the rear bearing of Jinhong tricycle

How to remove the rear bearing of Jinhong tricycle

1、 Demolition method:

1. Disassemble the outer ring, remove the interference fit outer ring, and set several outer ring compression screws on the circumference of the shell in advance. Tighten the screws evenly while disassembling. These screw holes are usually covered with blind plugs, tapered roller bearings, and other separable bearings. Several notches are set on the housing shoulder, and a cushion block is used to disassemble them with a press or gently tapping them.

2. The disassembly of the inner ring of cylindrical bore bearings can be done using pressure machinery to pull out the latest and simplest method. At this point, it is important to ensure that the inner ring bears its pulling force. The inner ring of large bearings is disassembled using hydraulic pressure method. Oil pressure is applied through oil holes set on the shaft to facilitate pulling. Bearings with a large width can be disassembled using both hydraulic pressure and drawing tools. The inner ring of NU and NJ cylindrical roller bearings can be disassembled using induction heating method. Heating the local area in a short period of time to expand the inner ring and pull it out

3. Dismantling of tapered bore bearings. Disassemble a relatively small bearing with a tightening sleeve, support the inner ring with a stopper fastened to the shaft, turn the nut back a few times, and then use a cushion block and hammer to disassemble.

4. Large bearings are easier to disassemble using hydraulic pressure. The method of disassembling bearings is to pressurize and send oil through the oil hole on the tapered shaft to expand the inner ring. During operation, there is a possibility of the bearing suddenly coming out. It is best to use the nut as a stopper.

2、 Definition of Bearing Terms:

Bearing is an important component in contemporary mechanical equipment. Its main function is to support mechanical rotating bodies, reduce their friction coefficient during motion, and ensure their rotational accuracy.

According to the different friction properties of moving components, bearings can be divided into two categories: rolling bearings and sliding bearings. Rolling bearings have been standardized and serialized, but compared to sliding bearings, they have larger radial dimensions, vibration, and noise, and are also more