Leading mid-day - Radial Shaft Seal (Oil Seal) Professional Sealing Solution
Having been in the sealing industry for many years, we are well aware of the manufacturing industry's demand for equipment stability. Cheng Hsin Seal King not only provides products, but also provides complete sealing solutions.
Japanese technology and quality assurance
Adopting Japan NOK, KOYO and other international brands of the same level of technical standards, strict quality control to ensure that each oil seal meets the requirements of industrial specifications. From material selection to process management, we provide you with the most reliable seal protection.
Customized Design Service
We have a team of specialized technicians who can provide customized designs for specific sizes, materials or work environment requirements. Whether it is a non-standard specification, special temperature range or chemical compatibility issue, we can provide the most suitable solution.
Fast Delivery Guarantee
We have a large number of commonly used specifications in stock, and standard products can be shipped within 48 hours. Even for customized products, sampling and mass production can be completed in the shortest possible time, so that your production schedule will not be delayed by waiting for parts.
Full Technical Support
We provide a full range of technical services including installation guidance, fault diagnosis, and preventive maintenance advice. Our team of engineers is always on standby to help you solve all kinds of sealing problems encountered in the field, so that the equipment can maintain the best running condition.
Premium Materials
Adopting imported NBR, FKM, PTFE and other high-performance rubber materials, the temperature range of -40°C to +200°C, adapting to a variety of working environments.
Precision Manufacturing
The use of CNC precision machining and automated production equipment ensures that the dimensional tolerances are controlled within ±0.1mm and the sealing effect is perfect after assembly.
Strict Inspection
Each batch of products undergoes a number of quality tests such as pressure test, temperature cycling test, oil resistance test, etc., to ensure stable and reliable quality from the factory.
Radial Shaft Seal, commonly known as Oil Seal, is a sealing element installed between the rotary shaft and the fixed housing. Its main function is to prevent the lubricating oil from leaking out, and at the same time to prevent external dust, moisture and other contaminants from entering the machine.
An oil seal usually consists of three main parts:
- Sealing Lips: Elastic rubber material, tightly fit on the surface of the rotary shaft to form an effective seal.
- Metal Skeleton: Provides structural strength to ensure that the oil seal will not deform or fall off after installation.
- Spring Ring: Apply appropriate pressure to keep the sealing lips close to the shaft surface to compensate for wear.
Correct selection and installation of oil seals can significantly increase equipment reliability, extend machine life and reduce maintenance costs.
01.
Initial Installation
When the oil seal is installed, the sealing lips form an initial contact with the shaft surface and the spring provides the appropriate radial force.
02.
Oil film build-up
When the shaft starts to rotate, an extremely thin lubrication film is formed between the sealing lips and the shaft surface, with a thickness of only a few micrometers.
03.
Dynamic Balance
The oil film provides lubrication and forms a seal, and the spring compensates for lip wear to maintain long-term sealing effect.
04.
Dust Barrier
The outer dust lip prevents the entry of external contaminants, and double protection ensures that the interior of the machine is clean.
automobile industry
- Engine crankshaft and camshaft seals
- Transmission Input/Output Shaft
- Differentials and Drive Axles
- Power Steering
Tools & Machines
- Spindle sealing system
- Gearbox Bearing Block
- Hydraulic Pump Shaft Seals
- Motor End Cap Seal
Heavy Equipment
- Excavator Hydraulic System
- Crane Rotating Mechanism
- Compressor crankshaft seals
- Wind Turbine Gearbox
Food Machinery
- Mixer Shaft Seal System
- Conveyor Roller Seal
- Packaging Machine Drive Shafts
- Pump Seal Assemblies
Dimensions
Correct shaft diameters, outer diameters and widths are the basis for successful sealing and must be measured to two decimal places.
Working Temperature
Select the appropriate material according to the operating temperature of the equipment, NBR is suitable for -40°C~120°C, and FKM can reach 200°C or above.
RPM Pressure
High-speed or high-pressure applications require specially designed oil seals. The standard type is suitable for line speeds up to 15 m/s.
Medium Compatible
Make sure the seal material is compatible with lubricants and chemical fluids in contact to avoid swelling or hardening problems.
| Material Code | Material Name | Temperature Range | Main Applications |
|---|---|---|---|
| NBR | Nitrile Rubber | -40°C ~ 120°C | General machinery, automobile engines |
| FKM | Fluorine Rubber | -20°C ~ 200°C | High-temperature equipment, chemical environment |
| VMQ | Silicone Rubber | -60°C ~ 180°C | Food Machinery, Medical Equipment |
| PTFE | Teflon | -200°C ~ 260°C | Extreme temperatures, strong acids and alkalis |
| ACM | Acrylate Rubber | -20°C ~ 150°C | Automatic Transmission, High Temperature Oil |
Actual Case: An automobile parts manufacturer originally used other brand oil seals, which need to be replaced every 3 months, causing frequent stoppages. After changing to use Xin Seal King products, the use cycle is extended to more than 10 months, the annual maintenance cost is reduced by 60%, and the production efficiency is significantly improved.
Professionalism you can trust
Cheng Hsin Seal King has more than 15 years of experience in the sealing industry and has served more than 500 corporate customers. We are not only a product supplier, but also your sealing technology consultant.
- ISO 9001 quality management system certification.
- Products comply with CNS, JIS and other international standards.
- One year warranty
- 24-hour Technical Consultation Line
- Regularly organizing technical seminars for customers
- Mr. Cheung, Manager, Precision Machinery Manufacturing
Not sure which specification or material to use? Our technical team is at your service! Simply provide us with the following information and we will respond with professional advice within 24 hours:1. Equipment type and application environment; 2. Shaft size and speed; 3. Operating temperature and pressure range; 4. Exposure to oils or chemical fluids; 5. Sealing problems encountered.;