### **EC-VK Oil Seal: Introduction, Features, and Applications**

#### **Introduction**

The **EC-VK oil seal** is a high-performance **rotary shaft seal** designed for demanding industrial and automotive applications. It features an advanced sealing lip structure combined with durable materials to ensure **long-lasting leak prevention** under harsh conditions, including high speeds, extreme temperatures, and exposure to chemicals.

#### **Key Features**

1. **Enhanced Sealing Design**

- **Double-Lip Construction**: The primary lip prevents oil leakage, while the secondary (dust) lip blocks contaminants (dirt, water, and debris).

- **Spring-Loaded Lip**: A garter spring ensures constant pressure against the shaft for a secure seal even under vibration or misalignment.

2. **High-Quality Materials**

- **Seal Lip**: Nitrile rubber (NBR), fluoroelastomer (FKM/Viton®), or acrylic rubber (ACM) for resistance to oils, fuels, and chemicals.

- **Metal Case**: Stainless steel or carbon steel with anti-corrosion coating for durability.

3. **Temperature & Pressure Resistance**

- Operates effectively in **-40°C to +200°C** (-40°F to +392°F) ranges, suitable for high-heat environments.

- Handles moderate to high **rotational speeds** (up to **20 m/s**).

4. **Low Friction & Wear Resistance**

- Optimized lip geometry reduces shaft wear, extending seal and component life.

5. **Customizable Options**

- Available in various sizes, materials, and configurations (e.g., single/double lip, PTFE-coated for dry runs).

#### **Applications**

The **EC-VK oil seal** is widely used in industries requiring **reliable sealing under dynamic conditions**:

- **Automotive**:

- Engine crankshafts, transmissions, differentials, and wheel hubs.

- Electric vehicle (EV) motor bearings and gearboxes.

- **Industrial Machinery**:

- Pumps, compressors, gearboxes, and hydraulic systems.

- Conveyor rollers and agricultural equipment.

- **Heavy-Duty Equipment**:

- Construction machinery (excavators, bulldozers).

- Marine and aerospace applications (fuel pumps, landing gear).

#### **Advantages Over Standard Seals**

✔ **Longer service life** due to reinforced materials.

✔ **Superior contamination resistance** (double-lip design).

✔ **Wide compatibility** with oils, greases, and synthetic lubricants.

#### **Maintenance & Selection Tips**

- Ensure proper shaft surface finish (Ra ≤ 0.8 µm) to prevent leaks.

- Avoid dry running; use compatible lubricants during installation.

- Choose **FKM/Viton®** for high-temperature or chemical exposure.

---

**Need help selecting the right EC-VK seal for your application?** Provide your operating conditions (speed, temperature, media), and we can recommend the best material/specification!