About Spring Oil Seal
The spring oil seal is a ring formed by a spiral spring rolled into a circle and connected at both ends. It is usually used to seal mechanical shafts and bearings to prevent contamination from dust, water or other foreign matter. During the sealing process, the sealing elements form the inside of the oil seal and their purpose is to stop fluid leaking from between the shaft and housing.
| Material | FKM |
| Working pressure | 20~25MPa |
| Temperature | -20℃~200℃ |
| Hardness | 65~90 Shore A |
| Density | 1.8~2.0g/cm³ |
| Tensile strength | 10~30MPa |
Features
1. High sealing performance: Spring oil seal is known for their high sealing performance. They can operate under extreme conditions, such as high temperature, high pressure and highly corrosive environments. The selection of springs made of different materials ensures that the seal remains in contact with the active surface and prevents any leakage.
2. Low friction: The spring can ensure that the seal maintains constant contact force and reduces friction between sealing surfaces. This low friction results in longer service life and improved performance. Spring seals are also self-lubricating, further reducing friction and wear.
3. Wear resistance: Wear is a common problem leading to leakage and system failure. These sealing elements are made from high-temperature-resistant materials and can withstand extreme conditions without damage.
4. Versatility: Spring oil seal is versatile and can be used in various applications such as aerospace, automotive and medical. These seals can seal different fluids and gases, making them suitable for different environments. They can also be customized in a variety of sizes and materials based on specific application needs.
5. Cost-effective: Despite their high performance and versatility, spring seals are also cost-effective. They provide a long service life and reduce the need for frequent replacement repairs.
Structure and Composition
Spring oil seal is mainly composed of spring, sealing element and metal shell. The spring is the core component of the oil seal. It has the function of exerting pressure on the sealing element so that the sealing element can fit tightly on the shaft to prevent liquid and solid impurities from entering.
The sealing element is a key part of the spring oil seal. It is made of special materials, such as fluorinated rubber, silicone, nitrile rubber and acrylic resin. These materials have excellent chemical stability, wear resistance and high temperature resistance. The metal shell is the frame of the spring oil seal, which has the function of giving the seal rigidity and strength.
Working principle
The working principle of the spring oil seal is to use the spring to exert pressure on the sealing element, so that the sealing element fits tightly on the shaft to form an effective seal. When the shaft rotates, the sealing element rotates with it and remains in close contact with the shaft under the pressure of the spring. In this way, the spring oil seal can effectively prevent liquid and solid impurities from entering the interior of the equipment.
Application Scenarios
1. Automobile industry: Spring oil seals are widely used in automobile engines, gearboxes, and hydraulic systems to prevent liquid and solid impurities from entering, ensuring the normal operation of the automobile and extending its service life.
2. Motorcycle industry: Oil seals are also widely used in motorcycle engines and transmission systems to ensure the stability and safety of the vehicle.
3. Engineering machinery: In engineering machinery, spring oil seals are used to seal mechanical shafts and bearings to prevent dust, water or other foreign matter contamination and ensure the normal operation of the machinery.
4. Hydraulic system: Oil seals are also widely used in hydraulic systems. They can prevent the leakage of hydraulic oil and prevent contaminants from entering the system.
Specific Role
1. Sealing effect: The spring oil seal can fit tightly on the shaft to form an effective seal to prevent liquid and solid impurities from entering the inside of the equipment.
2. Apply pressure: The spring can exert pressure on the sealing element, so that the sealing element can fit tightly on the shaft and enhance the sealing effect.
3. Compensation function: When the oil seal is used for a period of time, the spring can compensate for the radial force so that the sealing element can still fit tightly on the shaft.
4. Enhance stiffness: The metal shell of the spring oil seal has the function of giving the seal stiffness and strength, making the seal more stable and reliable.
