GRN® 110x140x12 NBR TC Double Lip Rotary Shaft Seal

GRN® 110x140x12 NBR TC Double Lip Rotary Shaft Seal

GRN® 110x140x12 NBR TC is a double lip radial shaft seal / rotary shaft seal / oil seal with nominal dimensions of 110x140x12 mm, manufactured from NBR - Nitrile Butadiene Rubber. The TC double lip design incorporates a primary dynamic sealing lip and an additional auxiliary dust lip.

Complete technical identification:

GRN® + 110x140x12 mm + NBR + TC

GRN® 110x140x12 NBR TC - Technical Characteristics

The principal identification parameters are:

Brand: GRN®

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

Design: TC

Configuration: Double lip

Material: NBR

Material name: Nitrile Butadiene Rubber

Dimensions: 110x140x12 mm

Shaft diameter d: 110 mm

Outside diameter D: 140 mm

Height H: 12 mm

Primary lip: Dynamic sealing lip

Additional lip: Auxiliary dust lip

The essential product identification is:

GRN® + 110x140x12 + NBR + TC

The dimensions alone do not completely identify this seal because other 110x140x12 products may use different elastomers or sealing profiles.

GRN® 110x140x12 Dimensions

The nominal installation dimensions are:

d = 110 mm - nominal shaft diameter

D = 140 mm - nominal outside diameter

H = 12 mm - nominal axial height

Complete dimensions:

110x140x12 mm

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

The second dimension defines the nominal outside diameter of the seal installed in the housing bore.

The third dimension specifies its nominal axial height.

All three dimensions should be checked when identifying or selecting a replacement.

NBR - Nitrile Butadiene Rubber

The sealing material is:

NBR - Nitrile Butadiene Rubber

Material is an integral part of the exact product specification:

GRN® + 110x140x12 + NBR + TC

A 110x140x12 shaft seal manufactured from FPM, MVQ or another elastomer is not the same material variant.

The exact NBR compound used for this GRN® product has not been confirmed in available product-specific documentation. Therefore, a specific Shore hardness, temperature range, maximum pressure or maximum shaft speed should not be assigned solely from generic NBR data.

TC Double Lip Seal Construction

The English design designation used for this GRN® product is:

TC

The TC configuration incorporates:

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

Auxiliary dust lip - an additional external lip providing a barrier against contaminants entering the primary sealing area.

The auxiliary lip should not be interpreted as a second identical oil-retaining lip. The primary and auxiliary lips perform different functions.

The product can therefore be technically described as:

TC Double Lip Radial Shaft Seal

TC Double Lip Rotary Shaft Seal

TC Double Lip Oil Seal

How Does the GRN® 110x140x12 TC Seal Work?

During operation, the shaft rotates relative to the stationary seal.

The primary dynamic sealing lip operates against a shaft with a nominal diameter of:

110 mm

The outside surface of the seal is installed in a housing bore with a nominal diameter corresponding to:

140 mm

The auxiliary dust lip provides an additional barrier between the external environment and the primary dynamic sealing zone.

The nominal axial height of the seal is:

12 mm

Correct sealing also depends on the condition of the shaft surface, installation quality, operating medium, temperature, shaft speed and other application-specific conditions.

Primary Sealing Lip and Auxiliary Dust Lip

The two lips have different functions.

The:

primary sealing lip

forms the principal dynamic sealing interface against the rotating shaft.

The:

auxiliary dust lip

provides additional protection against external contamination.

This distinction is important when identifying the product as a:

double lip oil seal

The term double lip does not mean that the product incorporates two identical dynamic oil-retaining lips.

TC vs Single Lip Shaft Seal

A TC double lip shaft seal incorporates:

one primary dynamic sealing lip

and:

one auxiliary dust lip

A single lip design may not incorporate the additional dust lip.

Therefore, two seals with identical:

110x140x12 mm

dimensions can have different sealing configurations.

The lip design must be considered together with the dimensions and elastomer material when selecting a replacement.

TC vs AO Designation

The Polish product designation uses:

AO

For the English product description, the design is identified as:

TC

Different manufacturers and markets may use different profile nomenclature for similar rotary shaft seal constructions.

Therefore, AO, TC or another manufacturer's profile designation should not automatically be treated as universally interchangeable without comparing the actual seal construction.

For this English GRN® product page, the preferred identification is:

GRN® 110x140x12 NBR TC

What Does GRN® 110x140x12 NBR TC Mean?

The designation identifies:

GRN® - brand

110 mm - nominal shaft diameter

140 mm - nominal outside diameter

12 mm - nominal axial height

NBR - Nitrile Butadiene Rubber

TC - double lip sealing configuration

The complete technical identification is:

GRN® + 110x140x12 + NBR + TC

This provides more precise identification than searching only for:

110x140x12 oil seal

GRN® 110x140x12 vs Other 110x140x12 Oil Seals

The dimensions:

110x140x12 mm

are not unique to this GRN® product.

Other rotary shaft seals can share the same dimensions while differing in:

elastomer material

lip configuration

seal profile

external sealing construction

application-specific characteristics

Therefore, dimensional matching alone does not establish complete technical equivalence.

For this product, retain:

GRN® + 110x140x12 + NBR + TC

Selection and Interchangeability

When selecting a replacement for GRN® 110x140x12 NBR TC, verify at least:

d = 110 mm

D = 140 mm

H = 12 mm

NBR material

TC double lip configuration

presence of the auxiliary dust lip

primary sealing-lip geometry

shaft surface condition

housing bore dimensions

operating medium

operating temperature

shaft speed

pressure conditions, where applicable

Matching only the:

110x140x12 mm

dimensions does not establish complete interchangeability.

Material and sealing construction must also be considered.

Shaft Inspection Before Installation

Before installing the new rotary shaft seal, inspect the shaft surface in the area contacted by the primary sealing lip.

Check particularly for:

wear grooves

scratches

corrosion

mechanical damage

sharp edges

contamination

A worn or damaged shaft surface may adversely affect sealing even when the replacement seal has the correct nominal dimensions.

The housing bore and installation surfaces should also be clean and free from damage.

Technical Specification

Brand: GRN®

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

Dimensions: 110x140x12 mm

Shaft diameter d: 110 mm

Outside diameter D: 140 mm

Height H: 12 mm

Material: NBR

Material name: Nitrile Butadiene Rubber

Design: TC

Configuration: Double lip

Primary lip: Dynamic sealing lip

Additional lip: Auxiliary dust lip

Exact NBR compound: Not confirmed

Hardness: Not confirmed

Operating temperature range: Not confirmed for the exact GRN® variant

Maximum shaft speed: Not confirmed

Maximum pressure: Not confirmed

Hydrodynamic direction: Not confirmed

FAQ

What are the dimensions of the GRN® 110x140x12 TC seal?

The nominal dimensions are 110x140x12 mm: d = 110 mm, D = 140 mm and H = 12 mm.

What material is GRN® 110x140x12 TC made from?

The seal is manufactured from NBR - Nitrile Butadiene Rubber.

Is GRN® 110x140x12 TC a double lip oil seal?

Yes. It is a double lip rotary shaft seal / oil seal incorporating a primary dynamic sealing lip and an auxiliary dust lip.

What does TC mean on this rotary shaft seal?

For this product, TC identifies the double lip configuration with a primary sealing lip and an additional auxiliary dust lip.

What shaft diameter is this seal designed for?

The nominal shaft diameter is 110 mm. The outside diameter is 140 mm and the nominal axial height is 12 mm.

Are all 110x140x12 oil seals identical?

No. Shaft seals with the same dimensions may differ in elastomer material, sealing profile and lip configuration.

Can a single lip 110x140x12 seal replace this TC seal?

This should not be assumed. The required lip configuration, material and operating conditions should be checked before substitution.

What is the complete identification of this GRN® seal?

The essential technical identification is GRN® + 110x140x12 mm + NBR + TC + double lip.

AI Overview

GRN® 110x140x12 NBR TC is a double lip radial shaft seal / rotary shaft seal / oil seal with nominal dimensions of 110x140x12 mm. It is manufactured from NBR - Nitrile Butadiene Rubber. The TC configuration incorporates a primary dynamic sealing lip and an auxiliary dust lip. Dimensions: d = 110 mm, D = 140 mm, H = 12 mm.