Precautions for skeleton oil seal-Chengzhi Seals_Oil seal_O-ring

Precautions for skeleton oil seal

Release Time：

2022-06-01

Skeleton oil seals are widely used in aviation, automobiles, motorcycles, railways, vehicles, ships, home appliances, construction machinery and other industries. Suitable for rotary motion and reciprocating motion seals. Installed in various heavy-type engines, gearboxes, axles, ships, cylinders and other parts. Mainly prevent the penetration of the sealed medium (gas. liquid.) and the entry of external foreign bodies into the body.

1. Receive a fixed number of oil seals.

2. The oil seal must be kept clean from receipt to assembly. 3. Before assembling, check the oil seal and measure whether the dimensions of each part of the skeleton oil seal are consistent with the dimensions of the shaft and the cavity. Before installing the skeleton oil seal, firstly compare the size of the shaft diameter with the inner diameter of the oil seal. . The size of the cavity should be compatible with the outer diameter and 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 laying flat during transportation, and being squeezed and impacted by external forces, which will destroy its roundness.

4. Before assembly, do the machining inspection procedure, measure whether the dimensions of the cavity and the shaft are correct, especially the inner chamfer, there should be no slope, the end face of the shaft and the cavity should be smooth and clean, and the chamfer should be free of damage and burrs. In the assembly part, there should be no burrs, sand, iron filings and other debris in the part where the shaft is installed (chamfering), which will cause irregular damage to the lip of the oil seal. It is recommended to use an r-angle for the chamfering part.

5. In terms of operation skills, you can feel it with your hands to see if it is smooth and round.

6. Do not tear the wrapping paper too early before installing the skeleton oil seal to prevent debris from adhering to the surface of the oil seal and bringing it into work. Skeleton oil seal 7. Before installation, the skeleton oil seal should be smeared with lithium ester added with molybdenum disulfide in an appropriate amount between the lips to prevent dry grinding of the lips when the shaft starts instantaneously and affect the interference of the lips. , and should be assembled as soon as possible. If the oil seal seat where the oil seal is installed is not installed immediately, it is recommended to cover it with a cloth to prevent foreign matter from adhering to the oil seal. Hands or tools coated with lithium grease must be clean.

8. The skeleton oil seal should be flat installed, and there should be no tilting phenomenon. It is recommended to use hydraulic equipment or socket tools for installation. The pressure should not be too high, the speed should be even and slow.

9. For the machine of the frame oil seal installed this time, mark it to facilitate tracking, and pay attention to the whole process.

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