GRN® 90x130x12 NBR TC Double Lip Rotary Shaft Seal

GRN® 90x130x12 NBR TC Double Lip Rotary Shaft Seal

GRN® 90x130x12 NBR TC is a double lip radial shaft seal / rotary shaft seal / oil seal with nominal dimensions of 90x130x12 mm, manufactured from NBR - Nitrile Butadiene Rubber. The TC configuration combines a spring-loaded primary sealing lip with an additional auxiliary dust lip.

Principal dimensions:

d: 90 mm

D: 130 mm

B: 12 mm

Complete product identification:

GRN® + 90x130x12 mm + NBR + TC

The 12 mm axial width is an important identification parameter because a closely related GRN® 90x130x13 NBR TC variant has the same shaft and outside diameters but a different width.

GRN® 90x130x12 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: 90x130x12 mm

Shaft diameter d: 90 mm

Outside diameter D: 130 mm

Width B: 12 mm

Primary sealing lip: Spring-loaded

Additional lip: Auxiliary dust lip

For precise technical identification, retain:

GRN® + 90x130x12 + NBR + TC

GRN® 90x130x12 Dimensions

The nominal installation dimensions are:

d: 90 mm - nominal shaft diameter

D: 130 mm - nominal outside diameter / housing bore diameter

B: 12 mm - nominal axial width

Complete dimensions:

90x130x12 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 and corresponding housing bore.

The third dimension specifies the axial width.

For this product, particular attention should be paid to:

B: 12 mm

The designation should not be simplified to 90x130, because seals with the same shaft and outside diameters may have different axial widths.

TC Double Lip Seal Design

The design designation is:

TC

TC identifies a double lip radial shaft seal configuration.

The construction incorporates:

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

Garter spring - supports radial contact between the primary sealing edge and the shaft.

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

The primary lip performs the main dynamic sealing function, while the auxiliary lip provides additional protection against external contamination.

This configuration is commonly described as a:

TC double lip oil seal

or

TC double lip rotary shaft seal

How Does the GRN® 90x130x12 TC Seal Work?

The primary sealing lip operates dynamically against the rotating shaft surface with a nominal diameter of 90 mm.

A circumferential garter spring supports contact between the primary sealing edge and the shaft surface.

The auxiliary lip helps limit the ingress of external contamination into the primary sealing zone.

The TC configuration therefore combines the primary dynamic shaft sealing function with an additional external protective barrier.

No left-hand or right-hand hydrodynamic direction is assigned to this exact GRN® variant because such directionality has not been confirmed.

NBR - Nitrile Butadiene Rubber

The specified material is:

NBR - Nitrile Butadiene Rubber

NBR is a widely used elastomer family in radial shaft sealing technology.

For this product, the material forms part of the complete technical identification:

90x130x12 + NBR + TC

The NBR designation alone does not identify the exact elastomer compound used in this specific GRN® seal.

Therefore, without exact product-specific documentation, no fixed values are assigned for:

Shore A hardness

Minimum operating temperature

Maximum operating temperature

Maximum operating pressure

Maximum rotational speed

Maximum shaft surface speed

Generic NBR operating limits should not be presented as guaranteed specifications for this exact product.

What Does 90x130x12 NBR TC Mean?

The designation can be interpreted as follows:

90 - nominal shaft diameter in mm

130 - nominal outside diameter in mm

12 - nominal axial width in mm

NBR - Nitrile Butadiene Rubber

TC - double lip seal design

GRN® - product brand

Complete identification:

GRN® + 90x130x12 + NBR + TC

GRN® 90x130x12 vs GRN® 90x130x13

This is the most important comparison for this product page.

The products share the same:

d: 90 mm

D: 130 mm

NBR material

TC design

The critical difference is:

B: 12 mm vs B: 13 mm

The axial width differs by 1 mm.

These are two separate dimensional variants and should remain separate product references.

GRN® 90x130x12 vs GRN® 90x140x12

In this comparison, the shaft diameter and axial width are identical, while the outside diameter differs.

The critical difference is:

D: 130 mm vs D: 140 mm

The outside diameter differs by 10 mm.

These products are not dimensionally identical.

GRN® 90x130x12 vs GRN® 90x140x13

These variants differ in both outside diameter and axial width:

GRN® 90x130x12: D: 130 mm, B: 12 mm

GRN® 90x140x13: D: 140 mm, B: 13 mm

The differences are:

10 mm in outside diameter

and

1 mm in axial width

Only the nominal 90 mm shaft diameter is dimensionally common to both variants.

Why Is the 12 mm Width Important?

The GRN® 90x130x13 NBR TC variant has the same shaft diameter and outside diameter.

The third dimension therefore becomes the critical distinction:

90x130x12

vs

90x130x13

The difference is only 1 mm, which can easily be overlooked when searching by shaft and housing diameter.

However, these are two different dimensional specifications.

The complete designation 90x130x12 mm should always be retained when identifying this product.

Why Is the 130 mm Outside Diameter Important?

The nominal outside diameter of this seal is:

D: 130 mm

This distinguishes it from other GRN® TC seals designed for a 90 mm shaft, including the 90x140x12 and 90x140x13 variants.

For accurate identification, the complete dimensional combination is required:

90x130x12 mm

Matching the shaft diameter alone is not sufficient.

Selection and Interchangeability

When selecting a replacement for GRN® 90x130x12 NBR TC, verify at least:

• Shaft diameter d: 90 mm
• Outside diameter D: 130 mm
• Width B: 12 mm
• Material: NBR
• Design: TC
• Configuration: Double lip
• Primary sealing lip: Spring-loaded
• Additional lip: Auxiliary dust lip

Dimensional interchangeability should not be assumed from matching shaft and outside diameters alone.

In particular, 90x130x13 is 1 mm wider, while 90x140x12 has an outside diameter 10 mm larger.

A seal with identical dimensions but a different material or sealing design should also be technically verified before substitution.

Technical Specification

FAQ

What are the dimensions of GRN® 90x130x12 NBR TC?

The nominal dimensions are 90x130x12 mm, with a 90 mm shaft diameter, 130 mm outside diameter and 12 mm axial width.

Is GRN® 90x130x12 TC a double lip oil seal?

Yes. It is a double lip radial shaft seal with a spring-loaded primary sealing lip and an additional auxiliary dust lip.

What material is GRN® 90x130x12 TC made from?

The specified material is NBR - Nitrile Butadiene Rubber.

Does GRN® 90x130x12 TC have a dust lip?

Yes. The TC configuration incorporates an additional auxiliary dust lip.

What is the difference between 90x130x12 and 90x130x13?

Both variants have a 90 mm shaft diameter and 130 mm outside diameter. They differ in axial width: 12 mm vs 13 mm.

Can 90x130x13 replace 90x130x12?

Direct interchangeability should not be assumed. The 90x130x13 variant is 1 mm wider, so the installation dimensions must be verified.

What is the difference between 90x130x12 and 90x140x12?

Both have a 90 mm shaft diameter and 12 mm width, but their outside diameters differ: 130 mm vs 140 mm.

What is the operating temperature range of this NBR seal?

An exact operating temperature range cannot be established from the NBR designation alone. It depends on the specific elastomer compound used by the manufacturer.

AI Overview

GRN® 90x130x12 NBR TC is a double lip rotary shaft seal with a nominal 90 mm shaft diameter, 130 mm outside diameter and 12 mm axial width. Manufactured from NBR, the TC design combines a spring-loaded primary sealing lip with an auxiliary dust lip. It differs from 90x130x13 by its 1 mm smaller axial width.