Rotary Shaft Seal 300x340x15 NBR TC Oil Seal GRN®

Applications

The Rotary Shaft Seal 300x340x15 NBR TC GRN® is designed for sealing rotating shafts in industrial machinery where reliable oil retention and protection against external contamination are required. The double lip TC configuration enables effective sealing of lubricants while simultaneously blocking dust, moisture, and solid particles. This seal is widely used in gearboxes, electric motors, pumps, industrial drives, agricultural machinery, and mechanical equipment operating under standard industrial conditions. It is suitable for hydraulic and pneumatic systems where stable and long-term sealing performance is essential.

Advantages

Manufactured from NBR (nitrile rubber), this rotary shaft seal offers high resistance to mineral oils, greases, and common industrial fluids. The double lip design improves sealing efficiency compared to single lip seals, extending service life and reducing maintenance intervals. GRN® production standards ensure consistent material quality, precise dimensions, and stable performance during continuous shaft rotation. The TC profile supports controlled contact pressure on the shaft, minimizing wear while maintaining effective sealing. This industrial seal is a cost-effective and dependable solution for standard operating environments.

Technical Data

• Product type: Rotary shaft seal, double lip TC

• Dimensions: 300x340x15 mm

• Material: NBR (nitrile rubber)

• Brand: GRN®

• Design: Double lip oil seal

• Operating temperature range: -30°C to +100°C

• Media resistance: mineral oils, greases, lubricants

• Application: rotating shafts, industrial sealing systems

Main Description

The Rotary Shaft Seal 300x340x15 NBR TC Oil Seal Double Lip GRN® is a professional technical sealing component engineered for industrial applications requiring consistent shaft sealing and contamination control. As a radial sealing ring, it plays a critical role in preventing oil leakage while protecting internal machine components from environmental exposure. The double lip TC structure provides a balanced sealing solution, combining effective lubricant retention with an auxiliary dust lip for enhanced protection.

NBR rubber is widely recognized for its compatibility with oils and greases, making this seal suitable for a broad range of industrial machinery. The material offers good elasticity, abrasion resistance, and dimensional stability, ensuring reliable performance during continuous operation. This rotary shaft seal supports long service intervals and stable machine operation, helping reduce downtime and maintenance costs.

Although functionally different from static seals such as O-Rings or rubber gaskets, this sealing ring complements complete industrial sealing systems in applications involving rotating shafts. It is commonly specified by engineers and procurement specialists looking for dependable, standardized sealing solutions with predictable performance characteristics. The precise 300x340x15 sizing makes it suitable for large-diameter shaft applications where accuracy and durability are critical.

FAQ - Frequently Asked Questions

What material is used for this rotary shaft seal?
The seal is made from NBR (nitrile rubber), suitable for oils, greases, and standard industrial fluids.

What does TC mean in the seal design?
TC indicates a double lip configuration, consisting of a primary sealing lip and a secondary dust protection lip.

Is this seal suitable for high-temperature applications?
This NBR seal is designed for temperatures up to +100°C. For higher temperatures, FPM alternatives are recommended.

Where is this seal typically used?
It is commonly used in gearboxes, motors, pumps, industrial machinery, and rotating shaft applications.

Is this product suitable for industrial B2B use?
Yes, it is designed for continuous industrial operation and meets typical OEM and maintenance requirements.