100x115x9 NBR AO/TC - double lip oil seal GRN®

Rotary shaft seal for industrial and automotive applications

High durability and reliable protection against oil and contamination

Main description

The 100x115x9 NBR AO/TC double lip oil seal GRN® is a professional rotary shaft seal designed for reliable shaft sealing in demanding industrial applications and automotive systems. Its primary function is to retain lubricants such as oils and greases inside the system while protecting rotating components from external contaminants.

This double lip oil seal features an AO/TC configuration, consisting of a main sealing lip with an integrated garter spring and a secondary dust lip. The spring-loaded primary lip ensures constant radial pressure on the shaft, providing stable sealing performance throughout the service life. The additional dust lip significantly improves protection against dirt, moisture and solid particles, making this seal more effective than a single lip oil seal (SC) in harsh operating environments.

Manufactured from NBR (nitrile butadiene rubber), the seal offers excellent resistance to oils and grease, fuels and standard hydraulic fluids. NBR is widely used in technical seals due to its good elasticity, wear resistance and dimensional stability. These properties result in high durability, reduced leakage risk and consistent performance during continuous operation.

With standard dimensions of 100x115x9 mm, this shaft sealing ring allows easy installation in housings and compatibility with commonly used shaft diameters. It is suitable for use as an oil seal, engine seal, and rotary seal in gearboxes, drive systems, bearing housings and mechanical assemblies. The compact width of 9 mm makes it especially useful where installation space is limited without compromising sealing efficiency.

The GRN® oil seal is designed for professional B2B customers who require reliable, repeatable sealing solutions for hydraulic and automotive seals, industrial machinery and power transmission systems.

FAQ - frequently asked questions

What is the difference between a single lip and double lip oil seal?
A double lip oil seal includes an additional dust lip, providing better protection against contamination and longer service life compared to a single lip seal.

Why is a spring used in rotary shaft seals?
The garter spring maintains constant contact pressure between the sealing lip and the shaft, ensuring stable sealing even as the material wears.

Is NBR suitable for oil and grease applications?
Yes, NBR offers very good resistance to mineral oils, greases and common hydraulic fluids.

How do I select the correct oil seal size?
The inner diameter must match the shaft (100 mm), the outer diameter the housing (115 mm), and the width must fit the installation space (9 mm).

Where are double lip oil seals commonly used?
They are widely used in gearboxes, engines, industrial machines, drive systems and bearing housings operating in contaminated environments.