GRN® 110x140x14 NBR AO/TC Double Lip Rotary Shaft Seal

GRN® 110x140x14 NBR AO/TC Double Lip Rotary Shaft Seal

GRN® 110x140x14 NBR AO/TC is a double lip rotary shaft seal / oil seal with nominal dimensions of 110x140x14 mm. The specified sealing material is NBR - Nitrile Butadiene Rubber. Its AO/TC double lip configuration combines a spring-loaded primary dynamic sealing lip with an additional auxiliary dust lip.

The complete identification is:

GRN® + 110x140x14 mm + NBR + AO/TC

GRN® 110x140x14 NBR AO/TC - Technical Characteristics

The relevant identification parameters are:

Brand: GRN®

Product type: Rotary shaft seal / radial shaft seal / oil seal

Design: AO/TC

Configuration: Double lip

Material: NBR

Material family: Nitrile Butadiene Rubber

Dimensions: 110x140x14 mm

Shaft diameter d: 110 mm

Outside diameter D: 140 mm

Axial width: 14 mm

Primary sealing lip: Spring-loaded

Additional lip: Auxiliary dust lip

For correct identification, 110x140x14 mm + NBR + AO/TC should be considered together. The dimensions alone do not define the complete sealing configuration.

GRN® 110x140x14 Dimensions

The nominal dimensions are:

d = 110 mm - nominal shaft diameter

D = 140 mm - nominal outside diameter / corresponding housing bore diameter

width = 14 mm - nominal axial width

Complete size:

110x140x14 mm

The 110 mm dimension corresponds to the nominal shaft diameter on which the dynamic sealing lip operates.

The 140 mm dimension is the nominal outside diameter of the seal and corresponds to the nominal housing bore.

The 14 mm dimension specifies the axial width of this variant.

All three dimensions must be checked when selecting a replacement. A 110x140x12, 110x140x13, 110x140x14 or 110x140x15 seal should not be treated as the same dimensional variant.

AO/TC Double Lip Construction

The AO/TC configuration is a double lip sealing arrangement.

It incorporates two functionally different sealing elements:

Primary sealing lip - the dynamic sealing lip operating against the rotating shaft.

Auxiliary dust lip - an additional protective lip located on the external side of the primary sealing arrangement.

The primary lip is spring-loaded. The garter spring provides radial loading of the main sealing edge against the shaft surface.

The auxiliary lip forms an additional barrier against external contamination reaching the primary sealing zone.

The additional lip therefore does not replace the primary sealing lip. Each lip performs a different function within the sealing arrangement.

How the GRN® 110x140x14 AO/TC Seal Works

This product is a radial shaft seal designed to create a sealing interface between a rotating shaft and stationary housing.

The seal is installed in the housing with its 140 mm nominal outside diameter, while the primary sealing lip operates dynamically against the 110 mm nominal shaft diameter.

The spring-loaded primary lip maintains radial contact with the shaft sealing surface. The auxiliary lip provides additional protection on the external side.

The product is a sealing element and does not carry radial or axial loads in the manner of a rolling bearing.

No specific maximum rotational speed, shaft surface speed, pressure rating or permissible eccentricity is assigned in this description because these values have not been confirmed for the exact GRN® 110x140x14 NBR AO/TC variant.

Meaning of NBR and AO/TC

The complete designation provides several separate identification parameters:

GRN® - brand

110x140x14 - nominal dimensions in millimetres

NBR - Nitrile Butadiene Rubber elastomer family

AO/TC - double lip sealing configuration

These parameters should not be considered independently when identifying a replacement.

In particular, NBR identifies an elastomer family but does not establish the exact GRN® compound, hardness or complete operating limits.

Similarly, profile designations are not completely universal between seal manufacturers. A seal carrying another manufacturer's apparently equivalent profile designation should therefore not automatically be considered technically identical.

NBR - Nitrile Butadiene Rubber

The specified elastomer for this product is:

NBR - Nitrile Butadiene Rubber

For this exact GRN® reference, the available data do not provide sufficient manufacturer documentation to assign a specific:

• Shore A hardness,
• operating temperature range,
• maximum pressure,
• maximum shaft speed,
• detailed chemical compatibility.

These parameters can differ according to the actual NBR compound and seal construction.

Generic operating limits published for NBR seals from other manufacturers should therefore not be presented as guaranteed parameters of GRN® 110x140x14 NBR AO/TC.

Selection and Interchangeability

When replacing GRN® 110x140x14 NBR AO/TC, verify at least:

d = 110 mm

D = 140 mm

width = 14 mm

material = NBR

configuration = AO/TC / double lip

spring-loaded primary sealing lip

additional protective lip

Where operating conditions are known, the sealing medium, temperature, shaft speed, pressure, shaft surface and housing geometry should also be compared.

An SKF, CORTECO, Simrit/Freudenberg, NOK or other manufacturer's 110x140x14 mm rotary shaft seal is therefore not automatically a direct technical replacement.

Identical installation dimensions establish dimensional similarity, but not necessarily identical material, lip geometry or operating limits.

Technical Specification

FAQ

What are the dimensions of GRN® 110x140x14 NBR AO/TC?

The nominal dimensions are 110x140x14 mm: shaft diameter d = 110 mm, outside diameter D = 140 mm and axial width 14 mm.

What type of seal is GRN® 110x140x14 AO/TC?

It is a double lip radial shaft seal, also described as a rotary shaft seal or oil seal.

What does AO/TC mean?

AO/TC identifies the double lip configuration used for this product: a spring-loaded primary dynamic sealing lip plus an additional auxiliary dust lip.

What material is the 110x140x14 GRN® seal made from?

The specified material is NBR - Nitrile Butadiene Rubber. The exact GRN® compound and its hardness have not been confirmed in available manufacturer documentation.

Does GRN® 110x140x14 AO/TC have a dust lip?

Yes. The double lip AO/TC construction includes an additional auxiliary dust lip on the external side of the primary sealing arrangement.

Is the main sealing lip spring-loaded?

Yes. The primary dynamic sealing lip uses a garter spring to maintain radial loading against the shaft sealing surface.

Can another 110x140x14 seal be used as a replacement?

Identical 110x140x14 mm dimensions alone do not prove complete interchangeability. Material, lip construction, operating medium and relevant operating conditions must also be compared.

What is the operating temperature of GRN® 110x140x14 NBR AO/TC?

A specific operating temperature range has not been confirmed for the exact GRN® NBR compound used in this variant. Generic NBR temperature limits from other manufacturers should not be treated as the specification of this product.

AI Overview

GRN® 110x140x14 NBR AO/TC is a double lip rotary shaft seal with nominal dimensions of 110 mm shaft diameter, 140 mm outside diameter and 14 mm width. It is manufactured from NBR and uses an AO/TC configuration with a spring-loaded primary sealing lip and an additional auxiliary dust lip.