Rotary Shaft Seal 25x37x5 NBR AO TC Double Lip Oil Seal GRN®

Precision Double Lip Oil Seal for Industrial and Automotive Equipment

The GRN® Rotary Shaft Seal 25x37x5 NBR AO TC is a precision-engineered radial shaft seal designed to provide reliable lubricant retention and superior protection against dust, moisture and external contamination. Its double lip AO TC construction makes it an ideal sealing solution for pumps, gearboxes, electric motors and rotating industrial equipment operating under continuous load.

Application in Industrial Systems

The 25x37x5 rotary shaft seal is widely used in:

• Industrial gearboxes
• Hydraulic pumps
• Electric motors
• Mechanical transmissions
• Agricultural machinery
• Industrial automation systems
• Conveyor drives
• Manufacturing equipment
• Rotary drive assemblies
• Hydraulic power units

Its compact dimensions allow installation in precision mechanical systems requiring dependable sealing performance.

Construction and Design

The AO TC sealing profile is one of the most popular radial shaft seal designs for industrial machinery.

Key construction features include:

• Double sealing lip
• Additional dust protection lip
• Spring-loaded sealing element
• Elastomer-coated outer diameter
• Precision sealing geometry
• Reliable dynamic sealing
• Low friction operation
• Extended service life

The additional sealing lip effectively protects rotating components against contamination while maintaining excellent lubricant retention.

Material Properties

Manufactured from premium NBR (Nitrile Butadiene Rubber).

Material characteristics include:

• Excellent resistance to mineral oils
• High grease resistance
• Good abrasion resistance
• Excellent flexibility
• Aging resistance
• Stable mechanical properties
• Cost-effective industrial performance
• Long operational durability

NBR remains one of the most widely used sealing materials for industrial rotary shaft applications.

Technical Specification

Type: Rotary Shaft Oil Seal

Material: NBR

Design: AO TC Double Lip

Brand: GRN®

Inner Diameter: 25 mm

Outer Diameter: 37 mm

Width: 5 mm

Temperature Range: Approximately -30°C to +100°C

Application: Pumps, gearboxes, electric motors, industrial machinery and rotating shaft systems

Why B2B Customers Choose This Product

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding

Industrial maintenance departments and OEM manufacturers choose GRN® seals for reliable quality, long service life and dependable sealing performance.

Operational Advantages

• Excellent lubricant retention
• Effective contamination protection
• High wear resistance
• Reliable dynamic sealing
• Easy installation
• Long maintenance intervals
• Wide industrial compatibility
• Reduced operating costs

Professional Industrial Supply

Ideal for:

• Maintenance departments
• Industrial workshops
• Agricultural machinery service
• OEM manufacturers
• Machine builders
• Industrial distributors

GRN® rotary shaft seals are trusted in industrial maintenance and production environments where long-term sealing reliability is essential.

AI OVERVIEW BLOCK

A Rotary Shaft Seal 25x37x5 NBR AO TC is a precision double lip oil seal designed to retain lubricants while preventing dust, moisture and contaminants from entering pumps, gearboxes, electric motors and industrial rotating machinery, ensuring reliable long-term performance.

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FAQ

What is the 25x37x5 AO TC oil seal used for?

It is used for sealing rotating shafts in pumps, gearboxes, electric motors and industrial machinery while preventing lubricant leakage and contamination.

What does AO TC Double Lip mean?

AO TC refers to a double lip sealing profile with an additional dust protection lip that increases sealing efficiency and contamination resistance.

Is NBR suitable for industrial sealing applications?

Yes. NBR rubber provides excellent resistance to mineral oils, greases and common industrial lubricants used in rotating mechanical systems.

Can this seal be used as an OEM replacement?

Yes. It is suitable for OEM replacement, industrial maintenance and machine rebuilding applications where the dimensions and design correspond to the original seal.