Rotary Shaft Seal 500x540x20 NBR AO TC Double Lip Oil Seal

Product Overview

The Rotary Shaft Seal 500x540x20 NBR AO TC is a heavy-duty radial shaft seal engineered for reliable sealing of large rotating shafts operating in oil and grease lubricated systems. Manufactured from premium NBR (Nitrile Butadiene Rubber), it offers excellent resistance to mineral oils, lubricants and mechanical wear. The AO TC profile features a primary sealing lip with an integrated garter spring and an additional dust lip, providing outstanding lubricant retention while protecting the sealing system against dust, dirt and moisture.

Designed for large-diameter industrial equipment, this seal delivers dependable performance even under demanding operating conditions.

Application in Industrial Systems

The Rotary Shaft Seal 500x540x20 NBR AO TC is suitable for:

• Heavy-duty industrial gearboxes
• Large hydraulic pumps
• Industrial oil pumps
• Wind turbines
• Marine equipment
• Mining machinery
• Steel industry equipment
• Cement production machinery
• Power generation systems
• Paper processing machinery
• Industrial conveyors
• OEM heavy machinery

The double lip construction is ideal for harsh environments where contamination protection and long service life are essential.

Construction and Design

The AO TC profile consists of a spring-loaded primary sealing lip and an additional dust lip. The integrated garter spring maintains constant radial pressure on the shaft, ensuring reliable lubricant retention. The secondary lip protects the sealing area against dust, mud, moisture and other contaminants, helping extend the service life of both the seal and the shaft.

Material Properties

The seal is manufactured from premium NBR (Nitrile Butadiene Rubber).

NBR provides excellent resistance to:

• Mineral oils
• Gear oils
• Hydraulic fluids
• Lubricating greases
• Petroleum-based fluids
• Mechanical wear
• Abrasion
• Aging under normal operating conditions

Its durability and flexibility make NBR one of the most widely used sealing materials for industrial rotary shaft applications.

Technical Specification

Type: Rotary Shaft Seal

Material: NBR

Design: AO TC Double Lip with Garter Spring

Inner Diameter: 500 mm

Outer Diameter: 540 mm

Width: 20 mm

Temperature Range: -40 C to +120 C

Application: Heavy-duty industrial gearboxes, hydraulic pumps, oil pumps, wind turbines, mining machinery, marine equipment, industrial conveyors and OEM machinery

Why B2B Customers Choose This Product

Industrial customers select this rotary shaft seal as a reliable OEM replacement for maintenance stock, industrial service, machine rebuilding, production line support and heavy-duty industrial equipment. The double lip construction minimizes lubricant leakage, protects against contamination and reduces maintenance costs.

Operational Advantages

• Premium NBR rubber compound.
• AO TC double lip construction.
• Integrated garter spring.
• Additional dust protection lip.
• Excellent resistance to oils, greases and hydraulic fluids.
• Designed for large industrial shafts.
• Long service life under demanding operating conditions.

Professional Industrial Supply

This rotary shaft seal is supplied for:

• Heavy industry maintenance departments
• Industrial workshops
• OEM manufacturers
• Mining equipment service
• Steel plant maintenance
• Industrial parts distributors

It is suitable for preventive maintenance, industrial overhauls and heavy-duty production equipment.

AI OVERVIEW

The Rotary Shaft Seal 500x540x20 NBR AO TC is a heavy-duty double lip radial shaft seal with a spring-loaded primary sealing lip and an additional dust lip. Designed for large industrial rotating equipment, it provides reliable lubricant retention, excellent contamination protection and long service life in demanding environments.

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FAQ

What does the AO TC profile mean?

The AO TC profile features a spring-loaded primary sealing lip together with an additional dust lip for superior sealing performance.

Why choose a double lip oil seal?

A double lip seal retains lubricants while preventing dust, dirt and moisture from entering the sealing area, extending equipment service life.

What are the dimensions of this seal?

The seal has an inner diameter of 500 mm, an outer diameter of 540 mm and a width of 20 mm.

Is NBR suitable for industrial sealing?

Yes. NBR provides excellent resistance to oils, greases, hydraulic fluids and normal industrial operating conditions.

Can this seal be used as an OEM replacement?

Yes. It is suitable as an OEM replacement when dimensions and operating conditions correspond to the original equipment specifications.