1. Check the oil seal for dust, impurities, and sand; inspect the rubber seal for cracks.
2. Check if the oil seal specifications (inner and outer diameters and height) match the dimensions of the shaft seat hole; check if the width is sufficient. If insufficient, use a blanket or paper gasket to supplement the width.
3. Check the spring inside the oil seal for elasticity and proper tension. If the spring is too long or too loose, or the clamping force is insufficient, shorten the length appropriately; check if the oil seal rubber is aged.
4. Check the shaft seat or seat hole for scratches, rust, or other mechanical damage; check if the oil seal is deformed.
When installing the oil seal, push it in evenly from all sides simultaneously. Do not strike from one side. When installing a skeleton rubber oil seal, the side with the spring ring should face the oil inflow direction. The operating temperature of the oil seal should not exceed 95℃. For oil seals mating with high-speed shafts, high-speed double-port or high-speed variable-port oil seals should be selected.
