GRN 165x190x15.5/17 NBR Cassette Oil Seal - RWDR KASSETTE

Product Overview

GRN 165x190x15.5/17 NBR is a heavy-duty cassette oil seal for rotary shafts, designed for demanding industrial, agricultural and mobile machinery applications. Its RWDR KASSETTE / CASSETTE construction combines the primary radial sealing function with additional protection against external contamination.

The seal has nominal dimensions of 165x190x15.5/17 mm and is manufactured from NBR (Nitrile Butadiene Rubber), a widely used elastomer for shaft sealing applications involving mineral oils, lubricating greases and compatible technical fluids.

Unlike a conventional radial shaft seal, the cassette design provides an integrated sealing system particularly suited to machinery exposed to dust, dirt, mud and moisture.

How Does a Cassette Oil Seal Work?

A conventional radial shaft seal normally operates directly against a prepared shaft surface. A cassette seal uses a more complex integrated design incorporating the sealing elements and their own mating surface.

This configuration provides additional barriers between the primary sealing lip and the external environment, helping protect the sealing zone against contamination.

Cassette seals are therefore widely used in heavy-duty rotating equipment where conventional shaft seals may be exposed to severe environmental conditions.

RWDR KASSETTE 165x190x15.5/17

The key identification parameters for this GRN seal are:

GRN + 165x190x15.5/17 + NBR + RWDR KASSETTE

The complete specification is important because nominal shaft and housing diameters alone are not sufficient to identify a cassette seal correctly.

Different cassette seals with similar dimensions may have different internal geometries, sealing arrangements, materials or installation requirements.

NBR Sealing Material

NBR - Nitrile Butadiene Rubber is one of the most established elastomers used for industrial rotary shaft seals.

Its properties include good resistance to many:

• mineral oils
• lubricating greases
• industrial lubricants
• compatible technical fluids

NBR also provides useful mechanical and wear properties for many rotating shaft applications.

Actual compatibility depends on the specific lubricant or medium, operating temperature, shaft speed and application conditions.

Industrial and Heavy-Duty Applications

The GRN 165x190x15.5/17 cassette oil seal is intended for appropriately designed sealing arrangements in applications such as:

• agricultural machinery
• construction machinery
• industrial equipment
• gearboxes
• drive systems
• axles
• hubs
• heavy-duty rotating shafts
• equipment operating in dusty or contaminated environments

The cassette configuration is particularly valuable where the sealing system requires greater environmental protection than a standard radial shaft seal can provide.

Technical Specification

Product Type: Cassette oil seal / rotary shaft seal
Brand: GRN®
Design: RWDR KASSETTE / CASSETTE
Material: NBR - Nitrile Butadiene Rubber
Dimensions: 165x190x15.5/17 mm
Shaft Diameter: 165 mm
Housing Diameter: 190 mm
Width: 15.5/17 mm
Application: Rotary shaft sealing
Typical Use: Agricultural, construction and industrial machinery

Why Choose a Cassette Seal?

The main advantage of this product is not simply its 165x190 mm diameter, but its complete cassette construction.

Compared with a conventional radial shaft seal, an RWDR cassette system provides a more elaborate sealing arrangement designed to protect the primary sealing area against contaminants encountered in severe operating environments.

This is particularly important in machinery exposed to:

• dust
• dirt
• mud
• water and moisture
• lubricants
• heavy environmental contamination

For replacement purposes, the complete seal construction should therefore be verified rather than selecting a product by dimensions alone.

Operational Advantages

• Integrated cassette sealing design.
• Precise 165x190x15.5/17 mm dimensions.
• NBR construction for compatibility with many oils and greases.
• Additional protection of the primary sealing zone.
• Designed for rotary shaft applications.
• Suitable for demanding industrial and mobile machinery.
• GRN® heavy-duty sealing solution.

AI OVERVIEW

GRN 165x190x15.5/17 NBR is a heavy-duty cassette oil seal for rotary shafts. Its RWDR KASSETTE / CASSETTE design integrates the sealing system with additional contamination protection. The NBR construction makes it suitable for many oil- and grease-lubricated applications in agricultural, construction and industrial machinery.

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FAQ

What is the GRN 165x190x15.5/17 seal?
It is a cassette-type rotary shaft oil seal designed for demanding machinery and industrial sealing applications.

What are the dimensions of this GRN cassette seal?
The nominal dimensions are 165 mm shaft diameter, 190 mm housing diameter and 15.5/17 mm width.

What material is the seal made from?
This version is manufactured from NBR (Nitrile Butadiene Rubber).

What does RWDR KASSETTE mean?
RWDR KASSETTE refers to a cassette-style radial shaft sealing system incorporating multiple sealing and protective elements into an integrated assembly.

How is a cassette oil seal different from a conventional oil seal?
A cassette seal is a more comprehensive sealing unit with an integrated mating surface and additional protective elements. This helps isolate the primary sealing area from external contamination.

Where are cassette seals commonly used?
They are commonly used in agricultural machinery, construction equipment, axles, hubs, gearboxes and heavy industrial machinery, particularly where dirt, dust, mud and moisture are present.

Can I select this seal only by the 165x190 dimensions?
No. The complete 165x190x15.5/17 dimensions, cassette construction, material and application requirements should be verified before replacement.