GRN® 110x140x13 NBR AO/TC Double Lip Rotary Shaft Seal

GRN® 110x140x13 NBR AO/TC Double Lip Rotary Shaft Seal

GRN® 110x140x13 NBR AO/TC is a double lip radial shaft seal / rotary shaft seal with nominal dimensions of 110x140x13 mm. It is manufactured from NBR - Nitrile Butadiene Rubber and uses the AO/TC double lip configuration. The primary dynamic sealing lip is spring-loaded, while the additional auxiliary lip provides a protective barrier on the external side of the main sealing zone.

The complete product identification is:

GRN® + 110x140x13 mm + NBR + AO/TC

GRN® 110x140x13 NBR AO/TC - Technical Characteristics

The principal identification parameters are:

Brand: GRN®

Product type: Radial shaft seal / rotary shaft seal / oil seal

Design: AO/TC

Configuration: Double lip

Material: NBR

Material name: Nitrile Butadiene Rubber

Dimensions: 110x140x13 mm

Shaft diameter d: 110 mm

Outside diameter D: 140 mm

Width B: 13 mm

Primary sealing lip: Spring-loaded

Additional lip: Auxiliary dust lip

For precise identification, the 110x140x13 mm dimensions, NBR material and AO/TC design should be considered together.

GRN® 110x140x13 Dimensions

The nominal installation dimensions are:

d = 110 mm - nominal shaft diameter

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

B = 13 mm - nominal axial seal width

Complete size:

110x140x13 mm

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

The 140 mm dimension defines the nominal outside diameter of the seal and the corresponding nominal housing bore.

The 13 mm dimension specifies the axial width of this particular variant.

All three dimensions must be checked during replacement identification. 110x140x13 mm and 110x140x14 mm are different dimensional variants, despite having the same shaft and outside diameters.

AO/TC Double Lip Seal Design

The AO/TC designation identifies a double lip sealing configuration.

The construction comprises:

Primary sealing lip - operates dynamically against the rotating shaft.

Garter spring - provides radial loading of the primary sealing edge against the shaft surface.

Auxiliary dust lip - forms an additional protective barrier on the external side of the primary sealing zone.

The spring-loaded primary lip performs the principal dynamic sealing function.

The auxiliary lip has a separate protective function, helping to limit external contamination from reaching the primary sealing area.

For this reason, an AO/TC double lip seal should not automatically be replaced by a single-lip seal, even when the nominal installation dimensions are identical.

How GRN® 110x140x13 AO/TC Works

GRN® 110x140x13 NBR AO/TC is a radial shaft sealing element intended to create a sealing interface between a rotating shaft and a stationary housing.

The seal is installed in a housing corresponding to its nominal D = 140 mm outside diameter.

The primary sealing lip operates dynamically against a shaft with a nominal diameter of d = 110 mm. The garter spring assists in maintaining radial contact between the sealing edge and the shaft surface.

The additional auxiliary lip is located on the external side of the main sealing arrangement and provides an additional barrier against contamination.

This product is a sealing component. It does not carry radial or axial loads in the manner of a rolling bearing.

NBR - Nitrile Butadiene Rubber

The specified sealing material is:

NBR - Nitrile Butadiene Rubber

NBR identifies the elastomer family used for this seal. It does not, by itself, define the exact compound formulation or all operating limits of the finished product.

For the exact GRN® 110x140x13 NBR AO/TC variant, no specific values are assigned here for:

Shore A hardness,

minimum or maximum operating temperature,

maximum rotational speed,

maximum shaft surface speed,

maximum permissible pressure.

Generic NBR limits or specifications published for seals from other manufacturers should not be treated as confirmed specifications for this exact GRN® product.

Meaning of 110x140x13 NBR AO/TC

The designation can be interpreted as follows:

110 - nominal shaft diameter in mm

140 - nominal outside diameter in mm

13 - nominal axial width in mm

NBR - Nitrile Butadiene Rubber

AO/TC - double lip sealing configuration

GRN® - product brand

The complete identification should therefore be retained as:

GRN® + 110x140x13 + NBR + AO/TC

The designation should not be simplified to 110x140, because seals with the same shaft and outside diameters can have different widths, materials and lip configurations.

Selection and Interchangeability

When selecting a replacement for GRN® 110x140x13 NBR AO/TC, verify at least:

• d = 110 mm
• D = 140 mm
• B = 13 mm
• NBR material
• AO/TC double lip configuration
• spring-loaded primary sealing lip
• additional auxiliary dust lip

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

Identical 110x140x13 mm dimensions do not automatically establish full technical interchangeability.

A seal from another manufacturer can have the same nominal dimensions but a different elastomer compound, lip geometry or operating limits.

GRN® 110x140x13 vs 110x140x14

These two variants should be kept technically and commercially separate:

GRN® 110x140x13 NBR AO/TC - B = 13 mm

GRN® 110x140x14 NBR AO/TC - B = 14 mm

They share the same 110 mm nominal shaft diameter and 140 mm nominal outside diameter, but differ by 1 mm in axial width.

This difference is part of the product specification and should be checked against the actual installation before replacement.

A 110x140x14 seal should therefore not automatically be treated as a substitute for a 110x140x13 seal.

Technical Specification

FAQ

What are the dimensions of GRN® 110x140x13 NBR AO/TC?

The nominal dimensions are 110x140x13 mm: shaft diameter d = 110 mm, outside diameter D = 140 mm and axial width B = 13 mm.

What type of seal is GRN® 110x140x13 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?

For this product, AO/TC identifies a double lip configuration consisting of a spring-loaded primary sealing lip and an additional auxiliary dust lip.

What material is GRN® 110x140x13 AO/TC made from?

The specified elastomer is NBR - Nitrile Butadiene Rubber. The exact compound formulation and hardness are not specified here without product-specific manufacturer data.

Does GRN® 110x140x13 AO/TC have a spring?

Yes. The primary dynamic sealing lip is spring-loaded. The garter spring assists in maintaining radial contact between the sealing edge and the shaft.

What is the purpose of the additional lip?

The auxiliary lip provides an additional protective barrier on the external side of the primary sealing arrangement and helps limit contamination from reaching the main sealing zone.

Can a 110x140x14 seal replace a 110x140x13 seal?

Not automatically. The variants differ in axial width: 13 mm versus 14 mm. The available installation space and the original seal specification must be checked before substitution.

Can another brand of 110x140x13 oil seal replace this GRN® seal?

Matching dimensions alone are insufficient to establish full interchangeability. The material, lip configuration and relevant operating conditions should also be compared.

AI Overview

GRN® 110x140x13 NBR AO/TC is a double lip radial shaft seal with nominal dimensions of d = 110 mm, D = 140 mm and B = 13 mm. It is manufactured from NBR - Nitrile Butadiene Rubber. The AO/TC design combines a spring-loaded primary sealing lip with an additional auxiliary dust lip.