11x22x7 NBR AO/TC - Double Lip Oil Seal

Precision rotary shaft seal for small mechanical assemblies

High durability and resistance to oils and grease

Main description

The 11x22x7 NBR AO/TC double lip oil seal is a compact rotary shaft seal designed for precise and reliable sealing in small-scale industrial applications and technical assemblies. Its main function is to retain lubricants such as oils and greases while protecting rotating components from external contamination during continuous or intermittent operation.

This double lip oil seal (TC) features a primary sealing lip responsible for oil retention and a secondary dust lip that protects the sealing area from dirt, moisture and fine particles. Compared to a single lip oil seal (SC), the double lip configuration provides improved contamination protection and more stable sealing performance, especially in compact mechanisms exposed to dust or frequent start-stop cycles.

Manufactured from NBR (nitrile butadiene rubber), the seal offers excellent resistance to oils and grease, as well as standard technical and hydraulic fluids. NBR is widely used in technical seals due to its elasticity, abrasion resistance and dimensional stability. These properties ensure high durability, consistent contact pressure on the shaft and reduced risk of leakage over time.

With dimensions of 11x22x7 mm, this shaft sealing ring is suitable for applications where installation space is limited and precise sealing is required. The reinforced structure ensures stable seating in the housing and accurate guidance of the sealing lips relative to the shaft. The seal is commonly used as a shaft seal, engine seal or rotary oil seal in small motors, gear units, auxiliary drives and precision mechanical equipment.

Designed for professional B2B use, this oil seal meets the expectations of engineers and maintenance teams seeking reliable solutions within the hydraulic and automotive seals segment, offering predictable performance and long service life.

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.

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

How do I select the correct rotary shaft seal size?
The inner diameter must match the shaft (11 mm), the outer diameter the housing (22 mm), and the width must fit the installation space (7 mm).

Where are small rotary shaft seals typically used?
In precision mechanisms, small electric motors, auxiliary drives and compact industrial equipment.

Is this oil seal suitable for continuous operation?
Yes, it is designed for long-term use under stable operating conditions in industrial environments.