Floating Seal Ring

Floating seal rings are a crucial component of floating seal devices, forming an oil film between the sleeve and shaft, which serves as a sealing function. In the process of floating seal rings, if any leakage issues arise due to faults in the floating seal rings, and these leakage phenomena vary, as do the causes, solutions must be tailored to different situations and local conditions.

When removing the floating oil seal, be extra careful to avoid touching the interior surface of the cavity or the surface of the inside shaft to prevent unnecessary damage.

Floating Oil SealPre-installation preparations and installation guide

1. Remove the packaging of the seal ring only before installing the oil seal.

2. Avoid placing O-ring seals with the sealing face down.

3. And apply a thin layer of oil to the sealed surface using a cloth free of cotton lint, such as deer skin, and a clean oil liquid; 4. Inspect and remove scratches and burr impurities from the installation surface of the sealing cavity.

5. Verify that the oil seal specification or gasket is properly placed on the backside of the seal ring. The seal ring must be fitted onto the surface inside the locating lip.

Floating Oil Seal (O-Ring) Installation Guide

1. Ensure the oil seal specifications are not twisted to avoid causing a curling effect.

2. When installing large diameter seal ring specifications, the quotation for DO0750B tunneling machine floating oil seal requires a significant amount of force. It is recommended to first apply a layer of oil film on the sealing surface of the oil seal specification. 3. Use installation tools to assemble the two halves of the seal ring specification inside the sealing cavity, and then install the oil seal in the center of the sealing cavity. 4. Check if the installation tools are fully in contact with the inner surface of the sealing cavity.

5. Remove the installation tools, visually inspect the position of the floating oil seal and the gasket, ensuring that all components are symmetrically aligned. 6. Clean the sealing surface with industrial alcohol and apply a thin layer of clean oil.

7. Position the two parts at an angle against each other, ensuring the floating oil seal for the Sichuan DO0750B tunneling machine maintains a tight contact with the sliding surface.

8. Adjust the axial clearance; if necessary, refer to the DO0750B tunneling machine floating oil seal installation video, fill the sealing cavity with oil, then drain it.

What type of lubricant should be used for floating oil seals, and what precautions should be taken?

Floating oil seals typically use liquid oil, usually not exceeding two-thirds of its capacity. However, for some floating oil seal wet brake systems, the oil cavity can be filled to capacity. It relies on the friction disc's self-cooling, thus, the installation clearance of DO0750B tunneling machine's floating oil seal can prevent sparking during operation without the wet brake.

Common liquid oil is 320 gear oil; for equipment with special requirements, special lubricating oil can be used. Lubricating oil generally does not require frequent changes and an annual change is sufficient. Unless the oil discolors or turns black, it may indicate overheating and the gear oil should be considered for replacement. Typically, without gear bearing damage or excessive temperature rise, an annual lubricating oil change is adequate.

Sichuan DO0750B Tunnelling Machine Floating Oil Seal - Provided by Beijing Zhongnu Seal Co., Ltd. Journeying far, forging ahead. Beijing Zhongnu Seal Technology Co., Ltd. is committed to becoming a strategic partner for win-win, co-prosperity, and joint progress with you. We are determined to become a competitive sealing solutions provider, soaring together with you towards shared success!