High-Quality Bearing Oil Seal Supplier, Manufacturer

Installation points

● Cleaning: Before installation, all parts of the hydraulic system that have been opened must be cleaned strictly to prevent sharp metal edges from scratching fingers.

● Direction: Pay attention to the installation direction to avoid installing in the wrong direction and damaging the lip, otherwise it may cause oil leakage.

● Fitness: Do not force installation. Use special tools to press the sealing ring into the seat hole first, then use a simple cylinder to protect the lip through the spline part, and apply lubricating oil to the lip before installation.

Product Description

Product Parameter

Material Hardness Temperature Property
SIL/VMQ50A-60°C - 250°CHigh/Low Temp Resistant, FDA grade
NBRStandard 70A (40A-90A)-40°C - 120°COil and wear resistant
FKM/VITONStandard 70A (50A-90A)-40°C - 240°CHigh temp, Oil & Chemical resistance
EPDMStandard 70A (40A-90A)-40°C - 150°CAcid/Alkali, Water steam, Aging resistant
HNBRStandard 70A (40A-90A)-40°C - 120°CWear, Oil, Refrigerant resistant
CRStandard 70A (40A-90A)-40°C - 120°COzone, Weather, Chemical, Aging resistant
FVMQStandard 70A (45A-70A)-60°C - 177°COil, Acid, Heat, Cold & High Voltage resistance
FFKMStandard 70A (50A-90A)250°C (Special up to 330°C)Excellent, Harsh environments, Chemical resistant
PUStandard 70A (60A-90A)-40°C - 90°CWear, High pressure, Aging, Hydrolysis resistant

Function

  • Prevent leakage: Ensures lubricating oil or grease remains inside the bearing, reducing maintenance costs.
  • Isolate pollutants: Prevents dust, moisture, and impurities from causing wear or corrosion to bearing components.
  • Maintain a stable working environment: Improves operating accuracy, reliability, and reduces failures caused by external interference.
Brand NameOEM
Model NumberStandard
Product NameTc Fkm Rubber Mechanical Bearing Oil Seal
StandardStandard
Hardness20~90 Shore
CertificateISO 16949

Classification

By Rotational Speed

  • Low-speed oil seal: For rotational speeds less than 6m/s.
  • High-speed oil seal: For speeds greater than 6m/s, used in engines and turbines.

By Pressure Resistance

  • Normal pressure: Withstands < 0.05MPa.
  • Pressure-resistant: Withstands > 0.05MPa, suitable for high-pressure pumps.

Application

  • Mechanical Equipment: Automotive, motorcycles, and engineering machinery for oil leakage prevention.
  • Aerospace: Sealing precision bearings in landing gears and high-temperature environments.
  • Shipbuilding: Protection against seawater corrosion and biological attachment for stern shaft seals.
  • Precision Instruments: Ensuring ultra-clean sealing for semiconductor and medical CT machines.
  • Home Appliances: Protecting washing machines and refrigerators from lubricant leakage.

Frequently Asked Questions

1. How do I choose the right oil seal material?
Selection depends on your operating temperature, media (oil, water, chemical), and pressure requirements. FKM is ideal for high heat, while NBR is standard for general oil resistance.
2. Are these oil seals suitable for high-speed applications?
Yes, we provide specialized high-speed oil seals designed for rotation speeds exceeding 6m/s, ensuring durability and minimal wear.
3. Can you customize the size and hardness?
Yes, most of our oil seals offer customizable hardness (typically 40A-90A) and dimensions to fit your specific machinery requirements.
4. What is the difference between single lip and double lip seals?
Single lip seals are for basic oil retention, while double lip seals include an auxiliary dust lip to prevent external debris from entering the bearing.
5. What is the typical lead time for orders?
Standard production time is approximately 5-7 days, and we maintain sufficient stock to ensure quick shipping.

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