1. How to install the skeleton oil seal seal in the shell hole

When assembling the skeleton oil seal seal, check the inner wall for debris, scratches, dust, casting sand, etc. Special tooling should be used to push the skeleton oil seal seal smoothly into the housing seat hole.

2. Installation of skeleton oil seal seal on the shaft

The inner diameter of the skeleton oil seal is usually smaller than the shaft diameter, forming a certain amount of interference, which can easily cause lip damage when assembling the skeleton oil seal. To prevent damage, a conical shoulder or conical tooling is generally used to assemble the skeleton oil seal seal.

When there are threads, grooves, and splines on the shaft, it is ineffective to use a conical shoulder to assemble the skeleton oil seal. Instead, special assembly tools need to be used to protect the lip of the skeleton oil seal, that is, when the threads, grooves, and splines are installed, Wear a protective sleeve to prevent the lip of the skeleton oil seal from being damaged by sharp corners, threads, grooves, splines, etc. on the shaft.

3. Installation procedures for skeleton oil seals and precautions during assembly

a. The skeleton oil seal seal must be kept clean from receipt to assembly. Do not tear off the wrapping paper too early before installing the skeleton oil seal seal to prevent debris from adhering to the surface of the skeleton oil seal seal and being brought into work.

b. Before assembling the skeleton oil seal seal, complete the machining inspection procedures to ensure that the dimensions of each part of the skeleton oil seal seal are consistent with the dimensions of the shaft and cavity. The end surfaces of the shaft and cavity must be smooth and clean, the chamfers must be free of damage and burrs, and the assembly parts must be clean. The shaft and seat hole should be processed with 15°-30° assembly chamfers, especially the inner chamfers, which cannot have a slope. It is recommended that the assembly part of the skeleton oil seal seal adopt a rounded chamfer. There should be no burrs, sand, iron filings and other debris in the shaft installation part (chamfering) to prevent accidental damage to the lip of the skeleton oil seal. The internal dimensions of the cavity must be suitable for the outer diameter and width of the skeleton oil seal seal.

c. Check whether the lip of the skeleton oil seal seal is complete, check whether the lip of the skeleton oil seal seal is damaged or deformed, whether the spring of the skeleton oil seal seal is falling off or rusty, and prevent the skeleton oil seal seal from being affected by external forces during transportation. Impacts such as extrusion and impact will destroy its true roundness.

d. If the skeleton oil seal seal has an oil return line, the relationship between the installation direction and the rotation direction of the skeleton oil seal seal must be determined first.

e. When assembling the skeleton oil seal, an appropriate amount of clean grease such as lithium ester with molybdenum disulfide added should be applied between the lips of the skeleton oil seal to prevent the shaft from causing damage to the lips of the skeleton oil seal when the shaft is instantly started. Dry grinding phenomenon affects the interference of the lip of the skeleton oil seal seal. There should be no machined thread marks on the surface of the lip contact part of the skeleton oil seal seal. During assembly, apply sealant on the outer ring of the skeleton oil seal, and wrap the keyway or step on the shaft with hard paper to avoid scratching or rolling the lip of the skeleton oil seal, or use special tools such as guide transition sleeves to seal the seal. The skeleton oil seal seal must be rotated and pressed inward, and must not be smashed or punched hard to prevent the skeleton oil seal seal from deforming or squeezing the spring of the skeleton oil seal seal and causing failure. If the lip of the skeleton oil seal seal is flanged, the spring falls off, and the skeleton oil seal seal is skewed, the skeleton oil seal seal must be removed and reinstalled.

f. Use special installation tools correctly to protect the lip of the skeleton oil seal seal from damage. Even slight scratches are not allowed, otherwise it will easily cause the skeleton oil seal seal to leak. It is recommended to use hydraulic equipment or sleeve tools for installation. The pressure does not need to be too high and the speed should be uniform.

g. When the skeleton oil seal seal is installed into the shell, it should be carried out with uniform pressure and must not be tilted to avoid deformation of the outer circle of the skeleton oil seal seal.

h. Pay attention to the installation direction when assembling the skeleton oil seal. When internal sealing is required, the side of the skeleton oil seal seal equipped with the self-tightening spring (that is, the side with the groove) faces the inside of the box, and the dust lip faces outward.

The assembly of the skeleton oil seal seal is the most important factor in the service life of the skeleton oil seal seal.