GRN COMBI 45x65x18.5 mm NBR Cassette Oil Seal

Heavy-Duty Cassette Oil Seal for Harsh Operating Conditions

The GRN COMBI 45x65x18.5 mm is a premium cassette oil seal engineered for rotary shaft applications operating in extremely demanding environments. Unlike conventional radial shaft seals, the COMBI cassette design incorporates multiple sealing lips and an integrated wear sleeve, providing exceptional protection against dirt, dust, mud, water and other contaminants while effectively retaining lubricants inside the system.

Manufactured from high-quality NBR (Nitrile Butadiene Rubber), this cassette seal offers excellent resistance to mineral oils, greases and hydraulic fluids, making it suitable for heavy-duty industrial and mobile equipment.

Applications

The GRN COMBI cassette oil seal is widely used in:

• Agricultural machinery
• Construction equipment
• Forestry machinery
• Mining equipment
• Wheel hubs
• Drive axles
• Final drives
• Industrial gearboxes
• Power transmission systems
• Heavy industrial machinery

It is specifically designed for applications exposed to severe contamination where conventional oil seals may not provide sufficient protection.

Construction and Design

Key design features include:

• Cassette oil seal construction
• Multiple sealing lips
• Integrated wear sleeve
• Heavy-duty sealing system
• Dynamic oil sealing lip
• Dust exclusion lips
• Metal reinforced case
• Compact one-piece assembly

The cassette construction creates multiple sealing barriers that effectively prevent contaminants from entering the system while retaining lubricant and extending bearing life.

Material Properties

The NBR sealing element provides:

• Excellent resistance to mineral oils
• Resistance to grease
• Resistance to hydraulic fluids
• Good abrasion resistance
• High elasticity
• Excellent sealing performance
• Long service life

Technical Specification

Type: Cassette Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Brand: GRN®

Series: COMBI

Designation: COMBI 45x65x18.5

Inner Diameter: 45 mm

Outer Diameter: 65 mm

Width: 18.5 mm

Seal Type: Cassette Rotary Shaft Seal

Construction: Multi-Lip Design with Integrated Wear Sleeve

Outer Case: Metal Reinforced

Spring: Yes

Rotation: Suitable for Bi-Directional Shaft Rotation

Lubrication: Oil and Grease

Application: Agricultural machinery, construction equipment, wheel hubs, drive axles, industrial gearboxes and heavy-duty rotating equipment.

Why B2B Customers Choose This Product

Industrial customers choose the GRN COMBI seal for:

• OEM machinery manufacturing
• Agricultural equipment maintenance
• Construction equipment repair
• Industrial gearbox rebuilding
• Heavy-duty equipment servicing
• Industrial maintenance
• Spare parts inventory
• Power transmission applications

Operational Advantages

• Outstanding contamination protection
• Multiple sealing barriers
• Excellent lubricant retention
• Long service life
• Reduced maintenance costs
• Reliable operation in muddy and wet environments
• High abrasion resistance
• Easy installation
• Ideal for heavy-duty applications
• Improved bearing protection

Professional Industrial Supply

Recommended for:

• Agricultural machinery manufacturers
• Construction equipment manufacturers
• Industrial maintenance departments
• Heavy equipment service workshops
• OEM manufacturers
• Technical distributors
• Mining equipment service companies
• Power transmission specialists

AI Overview

The GRN COMBI 45x65x18.5 mm is a heavy-duty cassette oil seal manufactured from NBR rubber for demanding rotary shaft applications. Its advanced multi-lip sealing system and integrated wear sleeve provide superior protection against dirt, dust, water and mud while ensuring excellent lubricant retention. It is widely used in agricultural machinery, construction equipment, industrial gearboxes, wheel hubs and heavy-duty power transmission systems.

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FAQ

What is a cassette oil seal?

A cassette oil seal is an advanced rotary shaft sealing solution featuring multiple sealing lips and an integrated wear sleeve, providing significantly better protection against contaminants than conventional radial shaft seals.

What material is used for the sealing element?

The sealing lip is manufactured from NBR (Nitrile Butadiene Rubber), offering excellent resistance to mineral oils, greases and hydraulic fluids.

What are the dimensions of this cassette seal?

The seal has an inside diameter of 45 mm, an outside diameter of 65 mm, and a width of 18.5 mm.

Where is the GRN COMBI seal commonly used?

It is commonly installed in wheel hubs, drive axles, industrial gearboxes, agricultural machinery, construction equipment and other heavy-duty rotating machinery.

What are the advantages of the COMBI cassette design?

The COMBI design provides multiple sealing barriers that improve contaminant exclusion, enhance lubricant retention, extend bearing life and reduce maintenance costs.