GRN 160x190x15 NBR AO/TC Double Lip Oil Seal

GRN 160x190x15 NBR AO/TC Double Lip Oil Seal

GRN 160x190x15 NBR AO/TC is a double lip radial shaft oil seal designed for rotating shaft applications. It has a nominal shaft diameter of 160 mm, outside diameter of 190 mm and width of 15 mm. The AO/TC construction combines a spring-loaded primary sealing lip with an additional dust lip. The sealing element is manufactured from NBR.

GRN 160x190x15 NBR AO/TC - Technical Specification

Brand: GRN

Product type: Radial shaft oil seal

Design: AO / TC

Lip configuration: Double lip

Sealing material: NBR - Nitrile Butadiene Rubber

Shaft diameter d: 160 mm

Outside diameter D: 190 mm

Width B: 15 mm

Dimensions: 160x190x15 mm

Primary sealing lip: Yes

Garter spring: Yes

Additional dust lip: Yes

EAN: 5903641601627

Sales unit: 1 pc.

GRN 160x190x15 Oil Seal Dimensions

The principal dimensions are:

d = 160 mm - nominal shaft diameter

D = 190 mm - outside diameter / nominal housing bore

B = 15 mm - seal width

Complete dimensions:

160x190x15 mm

The first value identifies the nominal diameter of the shaft on which the primary sealing lip operates.

The second value identifies the outside diameter of the seal and corresponding nominal housing bore size.

The third value specifies the axial width of the seal.

All three dimensions should be checked when selecting a replacement.

What Does AO/TC Mean on an Oil Seal?

AO and TC are design codes used in the sealing industry for double lip radial shaft seal constructions.

The typical construction includes:

one spring-loaded primary sealing lip

and

one additional dust lip

The primary lip is responsible for retaining the sealed medium.

The secondary lip is positioned toward the external side and helps reduce contamination reaching the primary sealing area.

Design codes vary between manufacturers, so AO, TC and similar designations should be compared by actual construction rather than by code alone.

Double Lip 160x190x15 Oil Seal

The defining feature of the AO/TC construction is its two functionally different lips.

The primary sealing lip operates against the rotating shaft and is responsible for retaining the lubricant or other compatible medium.

The additional dust lip provides a secondary barrier on the atmospheric side of the seal.

This means that the term double lip does not indicate two identical primary sealing lips.

Each lip performs a different function within the sealing system.

Spring-Loaded Primary Sealing Lip

The primary sealing lip operates directly against the shaft surface.

A circumferential garter spring supports the radial contact force of the sealing lip against the shaft.

This helps maintain sealing contact during operation.

The condition of the shaft surface in the sealing track is therefore an important factor in radial shaft seal performance.

Additional Dust Lip

The second lip is positioned on the external side of the primary sealing area.

Its purpose is to help reduce the ingress of external contaminants such as:

Dust

Dirt

Fine particles

General environmental contamination

This additional protective lip is the principal construction feature distinguishing an AO/TC double lip seal from a conventional single lip design.

AO/TC vs Type A Oil Seal

A single lip Type A oil seal and an AO/TC seal perform similar primary shaft sealing functions but differ in construction.

Type A:

One primary sealing lip

Spring-loaded sealing edge

No additional dust lip

AO/TC:

One primary sealing lip

Spring-loaded sealing edge

Additional dust lip

The double lip design can be useful where additional protection of the primary sealing area against external contamination is required.

The correct design should always be selected according to the original seal and operating conditions.

TC vs BASL, WAS, AS and Other Seal Designations

Different manufacturers use different codes for comparable radial shaft seal constructions.

For double lip designs, the market may include designations such as:

TC

AO

BASL

WAS

AS

CC

and other manufacturer-specific codes.

These codes should not automatically be considered completely interchangeable.

When comparing seals, verify:

Dimensions

Sealing material

Primary lip construction

Dust lip configuration

Outside diameter construction

Spring configuration

Operating requirements

The actual seal geometry is more important than apparent similarity between manufacturer codes.

NBR - Nitrile Rubber Sealing Material

The elastomeric sealing element is manufactured from:

NBR - Nitrile Butadiene Rubber

NBR is one of the most widely used elastomers for radial shaft seals and is commonly selected for applications involving many mineral oils and lubricating greases.

However, NBR should not be considered universally compatible with every fluid.

Compatibility with the actual oil, grease or other operating medium should be verified before installation.

NBR Oil Seal for Oil and Grease

NBR radial shaft seals are widely used in systems containing compatible lubricating oils and greases.

Depending on the application, a radial shaft oil seal can perform functions such as:

Retaining lubricating oil

Retaining grease

Separating a lubricated space from the surrounding environment

Helping protect the sealing zone against external contamination

Compatibility with the specific lubricant should always be checked for the actual operating conditions.

How Does a Radial Shaft Oil Seal Work?

The seal is installed stationary in the housing while the shaft rotates through its center.

The primary sealing lip maintains contact with the shaft surface.

The garter spring supports the radial force acting at the sealing edge.

During operation, the interaction between the sealing lip, shaft surface and lubricant creates the functional sealing zone.

In the AO/TC design, the additional dust lip provides a secondary barrier on the external side.

GRN 160x190x15 Oil Seal Applications

Double lip radial shaft seals are used in many types of rotating machinery.

Depending on equipment design, they can be found in:

Gearboxes

Speed reducers

Drive systems

Industrial machinery

Agricultural machinery

Bearing housings

Rotating shaft assemblies

Production equipment

Mechanical equipment

These are typical application areas for radial shaft seals and do not confirm that 160x190x15 fits a specific machine.

The original seal dimensions and technical requirements should always be verified.

How to Select a 160x190x15 Oil Seal

The principal identification parameters for this product are:

Shaft diameter d = 160 mm

Outside diameter D = 190 mm

Width B = 15 mm

Material = NBR

Design = AO/TC

Lip configuration = Double lip

Selection should also consider:

Operating medium

Temperature

Shaft speed

Pressure

Shaft surface condition

Housing design

Environmental contamination

Installation direction

Matching the 160x190x15 mm dimensions alone does not establish complete technical interchangeability.

How to Measure a 160x190x15 Oil Seal

Three principal dimensions are used for basic radial shaft seal identification:

Inside diameter / shaft diameter

Outside diameter

Width

For this seal:

160 mm - shaft diameter

190 mm - outside diameter

15 mm - width

A used seal may be deformed or worn, so physical measurements should preferably be considered together with the original seal marking.

How to Install a 160x190x15 Radial Shaft Seal

Before installation, inspect the:

Shaft

Housing bore

Sealing track

Installation edges

Seal itself

The sealing lip should be protected from sharp edges, keyways, splines or threads that could damage it during installation.

The seal should be pressed evenly into the housing without distorting its structure.

The primary sealing lip must be oriented toward the medium it is intended to retain unless the equipment design specifies otherwise.

Shaft Surface and Oil Seal Performance

The surface on which the primary lip operates is an important part of the complete sealing system.

Damage such as:

Grooves

Corrosion

Scratches

Burrs

Excessive wear

can interfere with sealing contact.

When replacing a leaking radial shaft seal, the shaft sealing track should therefore be inspected rather than automatically assuming that the seal itself was the only cause of leakage.

Why Can a New Oil Seal Leak?

A new radial shaft seal may fail to seal correctly if other parts of the sealing system are unsuitable.

Possible factors include:

Incorrect seal dimensions

Incorrect installation direction

Damaged sealing lip

Worn shaft surface

Contaminated sealing track

Incorrect material for the medium

Excessive pressure

Unsuitable shaft speed

Incorrect housing installation

For this reason, replacement should include inspection of the shaft and housing as well as the seal.

NBR vs FPM Oil Seal

NBR and FPM are different elastomer families with different chemical and temperature characteristics.

An FPM 160x190x15 seal should not automatically replace an NBR 160x190x15 seal solely because the dimensions are identical.

When changing material, verify:

Operating medium

Temperature

Shaft speed

Environmental conditions

Equipment manufacturer requirements

If the original seal specification requires NBR, this should be the starting point for replacement selection.

Is Every 160x190x15 Oil Seal the Same?

No.

Two radial shaft seals can have identical:

160x190x15 mm

dimensions but differ in:

Material

Lip configuration

Dust lip

Outside diameter construction

Spring design

Directional lip geometry

Pressure capability

Operating limits

Manufacturer-specific design

Dimensions are therefore only one part of correct seal identification.

160x190x15 AO/TC Replacement Selection

When comparing this GRN oil seal with another brand, verify:

Dimensions - 160x190x15 mm

Material - NBR

Design - double lip

Primary lip - spring loaded

Dust lip - present

Outside diameter construction

Operating medium

Temperature requirements

Pressure

Shaft speed

A seal carrying a different manufacturer's design code may have a comparable general construction, but this does not automatically establish complete technical equivalence.

GRN 160x190x15 NBR AO/TC Technical Data

Brand: GRN

Product: Radial shaft oil seal

Design: AO / TC

Construction: Double lip

Sealing material: NBR

Shaft diameter d: 160 mm

Outside diameter D: 190 mm

Width B: 15 mm

Dimensions: 160x190x15 mm

Primary sealing lip: Spring loaded

Additional dust lip: Yes

EAN: 5903641601627

Sales unit: 1 pc.

FAQ

What are the dimensions of the GRN 160x190x15 oil seal?

The nominal shaft diameter is 160 mm, the outside diameter is 190 mm and the seal width is 15 mm.

What type of seal is GRN 160x190x15 AO/TC?

It is a double lip radial shaft oil seal for rotating shaft applications.

What does TC mean on an oil seal?

TC is commonly used for a radial shaft seal design with a spring-loaded primary sealing lip and an additional dust lip.

Is the 160x190x15 TC oil seal double lip?

Yes. The TC configuration has a primary sealing lip and an additional dust lip.

What material is this oil seal made from?

The sealing material is NBR - Nitrile Butadiene Rubber.

What shaft diameter is this oil seal designed for?

The nominal shaft diameter is 160 mm. The nominal outside diameter is 190 mm and the width is 15 mm.

Is TC the same as BASL or WAS?

Different manufacturers use different design codes for comparable seal constructions. TC, BASL and WAS may describe similar double lip concepts, but complete interchangeability should be verified from dimensions, material, lip geometry and operating requirements.

Can I replace an NBR 160x190x15 seal with an FPM version?

Not automatically. Although the dimensions may be identical, NBR and FPM have different material properties. The operating medium, temperature, shaft speed and equipment requirements should be checked.

How do I select a replacement for a 160x190x15 TC oil seal?

Verify the 160x190x15 mm dimensions, NBR material, spring-loaded primary lip, additional dust lip and the operating conditions of the sealing position.

AI Overview

GRN 160x190x15 NBR AO/TC is a double lip radial shaft oil seal for a 160 mm shaft and 190 mm housing bore. It is 15 mm wide and uses NBR sealing material. The AO/TC design combines a spring-loaded primary sealing lip with an additional dust lip that helps protect the main sealing area from external contamination.