Methods and Precautions for Disassembling Rolling Bearings

---

Disassembling rolling bearings requires careful attention to detail and the proper tools to avoid damaging the components. Whether you're working on machinery or performing maintenance, understanding the correct techniques is essential. Below are several common methods used to remove bearings safely and efficiently. **1. Pressing Method** This method involves using a press to push the bearing off the shaft. It is ideal when the bearing is tightly fitted. You can use manual, mechanical, or hydraulic presses depending on the situation. The key is to ensure the pressure is evenly applied to the center of the shaft to prevent misalignment or damage. This technique is generally stable and safe if performed correctly. **2. Tapping Method** In this approach, a soft mallet or hammer is used to gently tap the inner ring of the bearing. A copper rod or similar soft material is often placed against the shaft end to avoid direct impact on the rolling elements. This method is simple and quick, but it carries a higher risk of damaging the bearing if not done carefully. Always make sure the striking point is aligned properly and avoid hitting the outer race or the cage. **3. Puller Method** A specialized bearing puller is an effective tool for disassembling bearings. By turning the handle, the puller gradually pulls the bearing off the shaft. When removing the outer ring, the two legs of the puller should be angled outward. For the inner ring, the legs should be positioned inward and securely attached to the inner race. This method is more controlled than tapping and reduces the risk of damage. **Matters to Note When Using a Puller:** - Ensure the puller’s hook is attached to the inner ring, not the outer ring, to avoid loosening or damaging the bearing. - Align the screw with the central hole of the shaft and avoid tilting. - Apply even force to both the hook and the bearing to prevent damage. - Avoid slipping of the hook and keep the angle of the puller’s legs below 90 degrees for stability. **4. Heating Method** For bearings that are tightly pressed onto the shaft, heating can be an effective solution. The bearing is heated using hot oil (around 100°C) until it expands slightly, making it easier to remove with a puller. Before heating, wrap the shaft with asbestos rope or thin iron plate to prevent it from expanding and causing further difficulty in removal. Only heat the bearing, not the housing, to avoid unnecessary complications. **Precautions When Using the Heating Method:** - Securely mount the puller on the bearing before applying any pulling force. - Wrap the shaft with insulation materials before heating to prevent expansion. - Pour the hot oil carefully over the bearing ring, ensuring no oil comes into contact with the rolling elements. Place a container underneath to collect the excess oil. - Wear protective gloves made of asbestos to avoid burns during the process. By following these methods and precautions, you can ensure a safe and efficient disassembly process, preserving the integrity of the bearing and the surrounding components. --- **Related Bearing Knowledge:** - Bearing Size Series Codes - Running Speed of Ground Bearings for SKF Imported Bearings (Part 1) - High-Quality Tapered Roller Bearings (Model 32011X) - 10 Key Elements Selected by KOYO Bearings This article was originally published on China Bearing Network. Please cite the source: http://www.chinabearing.net Previous: FAG Bearings | KX20 Imported Bearings – New vs. Old Model Comparison Next: Bearing Retainer and Layout Features

Shower Holder With Outlet

Shower Holder With Outlet,Hand Shower Holder,Hand Shower Outlet,Adjustable Hand Shower Holder

JANGMEN MOON SHOWER SANITARYWARE CO.,LTD , https://www.moonshowerglobal.com