GRN® 17x30x10 NBR TC Double Lip Rotary Shaft Seal

GRN® 17x30x10 NBR TC Double Lip Rotary Shaft Seal

GRN® 17x30x10 NBR TC is a double lip radial shaft seal / rotary shaft seal / oil seal with nominal dimensions of 17x30x10 mm, manufactured from NBR - Nitrile Butadiene Rubber. The TC configuration combines a primary dynamic sealing lip with an additional auxiliary dust lip on the external side. Complete technical identification: GRN® + 17x30x10 mm + NBR + TC.

GRN® 17x30x10 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: 17x30x10 mm

Shaft diameter d: 17 mm

Outside diameter D: 30 mm

Height H: 10 mm

Primary lip: Dynamic sealing lip

Additional lip: Auxiliary dust lip

For precise identification, retain:

GRN® + 17x30x10 + NBR + TC

The dimensions alone do not fully identify the product because other 17x30x10 mm shaft seals may use a different elastomer or sealing-lip configuration.

GRN® 17x30x10 Dimensions

The nominal dimensions are:

d = 17 mm - nominal shaft diameter

D = 30 mm - nominal seal outside diameter

H = 10 mm - nominal axial height

Complete dimensions:

17x30x10 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 is associated with the corresponding housing bore.

The third dimension specifies the axial height of this seal.

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

TC Double Lip Seal Design

The English construction designation used for this GRN® variant is:

TC

The TC configuration is a double lip radial shaft seal design incorporating two lips with different functions.

Primary sealing lip - forms the main dynamic sealing interface against the rotating shaft.

Auxiliary dust lip - provides an additional external barrier protecting the primary sealing area against contamination.

The term double lip therefore does not mean that both lips perform the same function.

The primary lip provides the principal dynamic sealing function, while the auxiliary lip helps limit external contaminants reaching the main sealing zone.

How Does GRN® 17x30x10 NBR TC Work?

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

d = 17 mm

The outside diameter:

D = 30 mm

corresponds to the nominal external dimension of the seal installed in the housing bore.

The auxiliary dust lip is positioned on the external side of the primary sealing area and creates an additional barrier between the surrounding environment and the main sealing lip.

Actual sealing performance also depends on the condition of the shaft surface, installation, alignment, operating medium and actual operating conditions.

NBR - Nitrile Butadiene Rubber

The specified elastomer for this product is:

NBR - Nitrile Butadiene Rubber

NBR is an integral part of the exact product identification:

GRN® 17x30x10 NBR TC

A radial shaft seal with identical 17x30x10 mm dimensions manufactured from FPM/FKM, MVQ or another elastomer should not automatically be considered the same technical variant.

The exact NBR compound used for this GRN® product has not been confirmed. Therefore, a specific Shore hardness, operating temperature range, maximum pressure or maximum shaft speed is not assigned without product-specific technical documentation.

What Does TC Mean?

For this GRN® product, TC identifies the double lip configuration consisting of:

a primary dynamic sealing lip

and

an additional auxiliary dust lip.

The Polish product designation uses AO/TC, while in the English technical description the preferred construction designation is:

TC

The complete English product name is therefore:

GRN® 17x30x10 NBR TC Double Lip Rotary Shaft Seal

Construction codes are not completely universal across all radial shaft seal manufacturers. A TC seal from another brand should therefore not automatically be considered technically identical.

Why Is the Full 17x30x10 NBR TC Identification Important?

The dimensional designation:

17x30x10

defines the principal installation dimensions.

It does not independently define:

elastomer material

number of sealing lips

presence of an auxiliary dust lip

complete sealing configuration

For ordering and technical identification, retain:

GRN® + 17x30x10 + NBR + TC

This helps distinguish the exact product from other radial shaft seals sharing the same nominal dimensions.

Selection and Interchangeability

When selecting a replacement for GRN® 17x30x10 NBR TC, verify at least:

Shaft diameter d = 17 mm

Outside diameter D = 30 mm

Height H = 10 mm

Material = NBR

Design = TC

Configuration = double lip

Presence of an auxiliary dust lip

Compatibility of the elastomer with the operating medium

Actual operating conditions

Matching 17x30x10 mm dimensions alone does not establish complete technical interchangeability.

A seal from another manufacturer may have identical nominal dimensions but use a different elastomer compound, sealing-lip geometry or internal construction.

Direct interchangeability with SKF, CORTECO, Freudenberg/Simrit or another manufacturer should only be stated after comparing the complete technical specifications.

Shaft Surface Inspection Before Installation

Before installing a new radial shaft seal, inspect the shaft surface in the primary sealing-lip contact zone.

Check for:

wear grooves

scratches

corrosion

burrs

mechanical damage

surface contamination

Damage in the sealing track can interfere with the intended dynamic interface between the sealing lip and shaft.

During installation, the sealing edge should also be protected from sharp edges, threads and grooves that could damage the lip.

Technical Specification

Brand: GRN®

Product type: Radial shaft seal

Alternative technical terms: Rotary shaft seal / oil seal

Dimensions: 17x30x10 mm

d - Nominal shaft diameter: 17 mm

D - Outside diameter: 30 mm

H - Height: 10 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

NBR hardness: Not confirmed

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

Maximum shaft speed: Not confirmed

Maximum pressure: Not confirmed

Directional sealing feature: Not confirmed

FAQ

What are the dimensions of GRN® 17x30x10 NBR TC?

The nominal dimensions are 17x30x10 mm: shaft diameter d = 17 mm, outside diameter D = 30 mm and height H = 10 mm.

What type of seal is GRN® 17x30x10 TC?

It is a double lip radial shaft seal / rotary shaft seal manufactured from NBR and equipped with an additional auxiliary dust lip.

What material is GRN® 17x30x10 TC made from?

The specified elastomer is NBR - Nitrile Butadiene Rubber.

What does TC mean?

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

Does GRN® 17x30x10 NBR TC have a dust lip?

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

Is every 17x30x10 oil seal the same product?

No. Identical dimensions do not define the elastomer material or sealing-lip construction. The complete specification should be compared.

Can a 17x30x10 FPM seal automatically replace this NBR variant?

No. NBR and FPM/FKM are different elastomer materials. Material compatibility must be evaluated for the actual operating medium and conditions.

How should a replacement for GRN® 17x30x10 NBR TC be selected?

Verify 17x30x10 mm, NBR material, the TC double lip configuration and compatibility with the actual operating medium and operating conditions.

AI Overview

GRN® 17x30x10 NBR TC is a double lip radial shaft seal / rotary shaft seal with nominal dimensions of d = 17 mm, D = 30 mm and H = 10 mm. The sealing element is manufactured from NBR - Nitrile Butadiene Rubber. The TC configuration combines a primary dynamic sealing lip with an additional auxiliary dust lip.