High temperature skeleton oil seal
Precautions for high-temperature skeleton oil seal:
1. Receive a fixed quantity of oil seals.
2. From receiving the oil seal to assembly, it must be kept clean.
3. Before assembly, check the oil seal and measure whether the dimensions of each part of the skeleton oil seal match the shaft and cavity dimensions. Before installing the skeleton oil seal, compare the shaft diameter size with the inner diameter size of the oil seal to ensure they match. The size inside the cavity should be suitable for the outer diameter width of the oil seal. Check whether the lip of the skeleton oil seal is damaged or deformed, and whether the spring is detached or rusted. Prevent the oil seal from being flattened during transportation, and from being affected by external forces such as compression and impact, which may damage its true roundness.
4. Before assembly, perform a machining inspection procedure and measure the dimensions of each part of the cavity and shaft to ensure they are correct, especially the inner chamfer, which should not have a slope. The end faces of the shaft and cavity should be machined smoothly, with no damage or burrs on the chamfer. Clean the assembly area, and there should be no burrs, sand, iron filings, or other debris at the installation (chamfer) of the shaft, which may cause irregular damage to the oil seal lip. It is recommended to use an R-angle for the chamfer area.
5. In terms of operational skills, you can feel with your hands whether it is smooth and truly round.
6. Before installing the skeleton oil seal, do not tear off the packaging paper too early to prevent debris from adhering to the surface of the oil seal and entering the work.
7. Before installation, the skeleton oil seal should be coated with a suitable amount of lithium based ester with added molybdenum disulfide between the lips to prevent dry grinding of the lips when the shaft is instantly started, which affects the interference fit of the lips. It should be assembled as soon as possible. If the oil seal seat is not installed immediately, it is recommended to cover it with cloth to prevent foreign objects from adhering to the oil seal. The hands or tools used to apply lithium grease must be clean.
8. The skeleton oil seal should be installed flat without tilting. It is recommended to use hydraulic equipment or socket tools for installation. Don't put too much pressure, the speed should be even and slow.
9. Mark the machine with the skeleton oil seal installed this time for easy tracking, and pay close attention to the entire process.