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An oil seal, is a device used to prevent the leakage of liquids or gases. They are usually made of soft, elastic materials, and their main function is to provide a seal between the periphery of a rotating shaft or bearing and a fixed part to prevent lubricants, liquid media or gases from escaping from the sealed part of the machine, and also prevent external dust and foreign matter from entering the inside of the machine to protect the normal operation of the machine.
Oil seal selection
Choosing the right seal is essential to ensure the normal operation of machinery and equipment and to extend the life of the equipment. When selecting oil seals, consider the following factors.
Operating environment, operating conditions, lubricant, sealing performance, installation and maintenance, cost and performance requirements. We here recommend TCN 32x52x11 oil seal, which has good quality at affordable price. Consult a professional engineer or seal supplier for more detailed advice on seal selection and to ensure proper operation of the equipment.
Key steps in installation
Inspection and Preparation: Ensure the oil seal surface is clean and free of contaminants. Apply a bonding adhesive or lubricant between the barrel and the oil seal to enhance rolling and reduce friction.
Installation Orientation: Position the opening of the skeleton oil seal inward, toward the lubricant, with the specification side facing outward.
Installation on Shaft or Housing: The oil seal's inside diameter is typically smaller than the shaft diameter, allowing for some overrun. To avoid damaging the seal lip, use a tapered shaft shoulder or tooling for assembly. Special tools are necessary for shafts with threads, grooves, or splines to protect the seal lips.
Note: Keep the oil seal clean from pickup to assembly. Conduct a machining inspection to verify that the oil seal's dimensions align with the shaft and cavity. Ensure the shaft and cavity ends are smooth and free of damage or burrs. Use a 15 to 30-degree chamfer on the shaft and seat hole, avoiding slopes at the corners. Remove any debris, such as burrs or filings, from the assembly area to prevent damage to the oil seal lip.
Post-Installation Inspection: Verify that everything is functioning correctly.
Correct installation of oil seals not only ensures the sealing effect, but also prolongs the service life of the equipment and improves the operation efficiency. If in any doubt, please consult a professional engineer or seal supplier for further guidance and advice.