Wheel hub cassette oil seal has excellent elasticity and resilience, and can closely fit various wheel hub surfaces, effectively preventing lubricating oil leakage. In addition, it also has excellent oil resistance, corrosion resistance and aging resistance, which can extend the service life of the oil seal.
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Materials
The material of the wheel hub cassette oil seal is usually NBR (nitrile butadiene rubber). This material has good oil resistance, heat resistance and aging resistance, and can maintain good sealing performance in the temperature range of -55℃~+135℃. In addition, NBR material also has good elasticity and resilience, can adapt to different shaft diameters and deflections, and has good self-lubricating properties, reducing friction and wear. In addition to NBR materials, hub box oil seals are also made of other materials, such as polyurethane, silicone rubber, etc.
Structure
1. Elastomer: Elastomer is the main material of oil seal, usually made of rubber or polyurethane. It has good elasticity and wear resistance, and can fit tightly on the wheel hub or bearing to play a sealing role.
2. Reinforcement ring: The reinforcement ring is the supporting part of the oil seal and is usually made of metal or other high-strength materials. Its function is to increase the rigidity and strength of the oil seal and extend the service life of the oil seal.
3. Dust-proof lip: The dust-proof lip is the dust-proof part of the oil seal, which is usually curved outward to prevent dust and other impurities from entering the hub or bearing. The shape and material of the dust lip will affect the sealing performance and service life of the oil seal.
4. Installation groove: The installation groove is a groove used to install the oil seal, which is usually machined on the wheel hub or bearing. The size and shape of the mounting groove should match the oil seal to ensure that the oil seal can be installed correctly and provide a good sealing effect.
1. Strong anti-pollution ability: Due to its special structural design, the wheel hub cassette oil seal can effectively prevent the penetration of dirt, mud, water and dust, and is suitable for situations where the mechanical working environment is relatively polluted, such as agricultural machinery and concrete operations.
2. Good sealing performance: The cassette oil seal forms a labyrinth filled with grease inside, with several sealing and dust-proof lips (radial and axial). The main sealing lip is driven by a spring, which makes its sealing performance very good and can completely prevents lubricating oil leakage.
3. Good durability: The service life of the cassette oil seal is longer than that of ordinary oil seals. It has better durability, longer replacement cycle and better economy. It is suitable for machinery where it is difficult to replace the oil seal.
4. Grease filling: It can reduce wear and extend service life, thereby extending maintenance intervals for heavy-duty applications.
5. No additional processing required: The cassette seal contains a pre-treated sealing contact surface, which means that the shaft does not need to be specially hardened and surface polished, nor does it require additional dust sealing.
Application scenarios include but are not limited to the following:
1. Automobile industry: wheel hub cassette oil seal is mainly used for sealing between the automobile wheel hub and the drive axle, which can prevent lubricating oil from leaking and prevent dust and other impurities from entering the wheel hub. This prolongs the service life of the vehicle and ensures driving safety.
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2. Industrial manufacturing: In the field of industrial manufacturing, oil seals can be used to seal hubs and bearings of various mechanical equipment, such as motors, reducers, pumps, etc.
3. Agricultural machinery: In the field of agricultural machinery, hub oil seals can be used for hub seals on tractors, harvesters, irrigation machinery and other equipment.
4. Rail transportation: In the field of rail transportation, cassette oil seals can be used for wheel hub seals in subways, light rails, trams and other vehicles.
5. Military equipment: In the military field, wheel hub box oil seals can be used for wheel hub seals on tanks, armored vehicles, military trucks and other equipment.
In short, wheel hub cassette oil seal has a wide range of application scenarios and can provide reliable sealing performance in various harsh environments and conditions to protect the normal operation of mechanical equipment and vehicles.
1. Material preparation: Choose appropriate materials, such as rubber, polyurethane, etc., and choose materials with oil resistance, high temperature resistance, wear resistance and other properties according to different application scenarios.
2. Mold making: Make the mold according to the design drawings to ensure the accuracy and surface finish of the mold.
3. Cutting and cutting: Cut the material into appropriate size and shape, and cut it to obtain the required oil seal parts.
4. Vulcanization molding: Put the cut and cut materials into the mold for vulcanization molding, so that the materials are fully bonded together to form a complete oil seal.
5. Surface treatment: Surface treatment is performed on the sealing lip of the oil seal to improve its friction coefficient and wear resistance.
6. Quality inspection: Carry out size, appearance and performance inspection on the produced oil seal to ensure that it meets the design requirements and quality standards.
7. Packaging and storage: Pack the qualified oil seals and put them in the warehouse for subsequent transportation and use.
■ Linde Polymer Tec Co., Ltd. has more than 30 years of experience in the design of rubber formulas, with about 3,000 formulas and more than ten materials including NBR, EPDM, VITON, SILICONE, CR, NR, HNBR, etc. Comply with 85% automotive material specifications and UL/NSF/FDA/KIWA/TUV and other certification requirements. And it has an independent and complete formula testing laboratory, which can be customized according to customer needs.
■ We have a strong team of design engineers and a CNC machining center with rapid design and prototyping capabilities. We can carry out complete product development, design and production according to the different needs of customers to meet the customized needs of different customers. Among them, O-rings have accumulated more than 4,000 pairs of molds, including molds with American standard AS568, Japanese standard JISB, full range of metric and metric sizes, and some national standard sizes.
■ The company has successively passed international quality system certification ISO/QS, environmental management system ISO and international automobile industry quality system IATF certification. In addition to complying with general standards (such as ISO), dimensional tolerances and appearance can be customized to fully meet the different needs of customers. We have more than 10 years of experience in supplying zero-defect O-Rings to European customers and supplying zero-defect customized products to European, American and Japanese car manufacturers.
Contact us to discuss your requirements of China Low Seals for Hydraulic Pumps and Valves Manufacturer. Our experienced sales team can help you identify the options that best suit your needs.
You don’t want too much pressure on the seal lips as heat will decrease the life. Any chance it is there for partly fried shafts which were previously worn from the old seal?The surface the seal rides on is not worn. I was leaning towards the larger seal myself. When slipped onto the sealing area of the spindle it does have drag so it is in full contact but not as much drag as the smaller one.