GRN® 90x110x8 NBR TC Double Lip Rotary Shaft Seal

GRN® 90x110x8 NBR TC Double Lip Rotary Shaft Seal

GRN® 90x110x8 NBR TC is a double lip rotary shaft seal with nominal dimensions 90x110x8 mm. The TC design incorporates a spring-loaded primary sealing lip and an auxiliary dust lip. The elastomeric sealing element is manufactured from NBR – Nitrile Butadiene Rubber.

The key product identification is:

GRN® + 90x110x8 + NBR + TC + double lip

GRN® 90x110x8 NBR TC – Technical Characteristics

The complete size, material and seal design should be considered together when identifying a replacement.

GRN® 90x110x8 Shaft Seal Dimensions

The principal nominal dimensions are:

d: 90 mm – nominal shaft diameter

D: 110 mm – nominal outside diameter / housing bore diameter

B: 8 mm – nominal axial width

Complete nominal size:

90x110x8 mm

All three dimensions should be verified during product selection.

A shaft seal with the same 90 mm shaft diameter and 110 mm outside diameter may have a different width, material or sealing profile.

TC Double Lip Seal Design

The defining feature of this GRN® variant is its TC double-lip construction.

The seal incorporates:

a primary sealing lip

supported by:

a garter spring

and:

an auxiliary dust lip

The primary sealing lip forms the principal dynamic sealing interface with the rotating shaft.

The garter spring assists in maintaining contact between the sealing edge and the shaft surface.

The auxiliary dust lip creates an additional protective barrier on the external side of the main sealing zone.

What Does TC Mean?

For this GRN® product, TC identifies a double lip rotary shaft seal design with a spring-loaded primary sealing lip and an auxiliary dust lip.

In the Polish GRN® product nomenclature, this construction may be described as:

AO

or:

AO/TC

For the English product catalogue, the designation is:

TC

Therefore:

Polish: GRN 90x110x8 NBR AO/TC

becomes:

English: GRN® 90x110x8 NBR TC

Seal profile codes are not universally standardized between manufacturers. A profile code used by one manufacturer should not automatically be treated as equivalent to another manufacturer's designation.

How Does the GRN® 90x110x8 TC Seal Work?

The radial shaft seal operates between a rotating shaft and a stationary housing.

The primary sealing lip contacts the shaft surface and creates the principal dynamic sealing interface.

The garter spring assists in maintaining the required contact between the sealing edge and the shaft.

The outside diameter of the seal is retained in the housing bore.

The auxiliary dust lip provides an additional barrier against external contamination approaching the primary sealing area.

The component performs a sealing function and does not replace a bearing or other shaft-supporting component.

NBR – Nitrile Butadiene Rubber

The elastomeric sealing element is manufactured from:

NBR – Nitrile Butadiene Rubber

NBR is a family of technical elastomers widely used in sealing applications.

However, the generic designation NBR does not identify the exact compound formulation used in this specific GRN® seal.

Therefore, without documentation for the exact compound, this product should not be assigned an arbitrary:

• Shore A hardness
• minimum or maximum operating temperature
• maximum shaft surface speed
• maximum pressure
• detailed chemical resistance range

Compatibility should be evaluated against the actual operating medium and operating conditions.

GRN® 90x110x8 NBR TC vs CORTECO 01031608B BAX7

Another product with the same nominal dimensions is:

CORTECO 01031608B 90x110x8 NBR BAX7

Both products have:

d: 90 mm

D: 110 mm

B: 8 mm

and use:

NBR

However, matching dimensions and material do not establish automatic interchangeability.

The CORTECO BAX7 designation should not automatically be translated into TC, and the GRN® TC profile should not automatically be considered identical to BAX7.

Actual construction and application requirements should be verified before using one product as a replacement for another.

For SEO and AI Search, the pages should remain centered on different product entities:

GRN® → 90x110x8 NBR TC double lip

CORTECO → 01031608B 90x110x8 NBR BAX7

This reduces unnecessary competition between the two product pages for the same generic dimensional query.

Rotation Direction

The TC designation alone does not establish directional hydrodynamic lip geometry.

Therefore, this product should not be described as:

right-hand

left-hand

or:

alternating-direction

unless this feature is confirmed for the exact GRN® execution.

Applications requiring directional hydrodynamic sealing features should be checked against exact product documentation.

Selection and Interchangeability

Before selecting the GRN® 90x110x8 NBR TC seal, verify:

• shaft diameter d: 90 mm
• outside diameter D: 110 mm
• width B: 8 mm
• elastomer NBR
• TC double-lip design
• spring-loaded primary sealing lip
• auxiliary dust lip
• operating medium
• operating temperature
• shaft surface speed
• pressure
• shaft surface condition
• housing bore condition

Matching the 90x110x8 mm dimensions alone is insufficient to establish full technical interchangeability.

Technical Specification

FAQ

What are the dimensions of the GRN® 90x110x8 NBR TC seal?

The nominal dimensions are d: 90 mm, D: 110 mm, B: 8 mm.

Is GRN® 90x110x8 NBR TC a double lip shaft seal?

Yes. It is a double lip TC design with a spring-loaded primary sealing lip and an auxiliary dust lip.

Does the GRN® 90x110x8 TC seal have a garter spring?

Yes. The primary dynamic sealing lip is supported by a garter spring.

Does the TC design have an auxiliary dust lip?

Yes. The auxiliary lip provides an additional barrier against external contamination approaching the main sealing area.

What does NBR mean?

NBR stands for Nitrile Butadiene Rubber, a family of elastomers widely used in sealing technology.

Is GRN® 90x110x8 NBR TC interchangeable with CORTECO 01031608B?

Automatic interchangeability should not be assumed. The products share nominal dimensions and NBR material, but use different profile designations: GRN® TC and CORTECO BAX7. Actual construction and application requirements should be verified.

What is the English designation for the GRN® AO/AO-TC profile?

For GRN® product naming, the Polish AO / AO-TC construction is identified in English as TC – double lip rotary shaft seal.

Does TC specify shaft rotation direction?

No. The TC designation alone does not confirm right-hand, left-hand or alternating hydrodynamic lip geometry.

AI Overview

GRN® 90x110x8 NBR TC is a double lip rotary shaft seal with nominal dimensions d: 90 mm, D: 110 mm, B: 8 mm. The TC design incorporates a spring-loaded primary sealing lip and an auxiliary dust lip. The elastomeric sealing element is manufactured from NBR – Nitrile Butadiene Rubber.