GRN® 30x50x10 NBR TC Double Lip Rotary Shaft Seal

GRN® 30x50x10 NBR TC Double Lip Rotary Shaft Seal

GRN® 30x50x10 NBR TC is a double lip radial shaft seal / rotary shaft seal / oil seal with nominal dimensions of 30x50x10 mm, manufactured from NBR - Nitrile Butadiene Rubber. The TC double lip design incorporates a spring-loaded primary dynamic sealing lip and an additional auxiliary dust lip.

Complete technical identification:

GRN® + 30x50x10 + NBR + TC

GRN® 30x50x10 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: 30x50x10 mm

Shaft diameter d: 30 mm

Outside diameter D: 50 mm

Width B: 10 mm

Primary sealing lip: Dynamic, spring-loaded

Additional lip: Auxiliary dust lip

For precise identification, retain:

GRN® + 30x50x10 + NBR + TC

The nominal dimensions alone do not completely identify the product because other 30x50x10 seals may use different elastomers, sealing profiles or lip configurations.

GRN® 30x50x10 Dimensions

The nominal installation dimensions are:

d: 30 mm - nominal shaft diameter

D: 50 mm - nominal seal outside diameter / housing bore diameter

B: 10 mm - nominal axial width

Complete dimensions:

30x50x10 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.

The third specifies the nominal axial width.

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

TC Double Lip Seal Design

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

TC

The TC construction incorporates:

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

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

Auxiliary dust lip - forms an additional external barrier protecting the primary sealing zone against contamination.

The auxiliary lip should not be interpreted as a second identical oil-retaining lip. Its principal role is to protect the primary sealing area against external contaminants.

The product can therefore be accurately described as:

TC Double Lip Radial Shaft Seal

TC Double Lip Rotary Shaft Seal

TC Double Lip Oil Seal

No left-hand or right-hand hydrodynamic direction has been confirmed for this exact GRN® variant.

How Does the GRN® 30x50x10 TC Seal Work?

The primary dynamic sealing lip operates against a shaft with a nominal diameter of 30 mm.

The garter spring supports contact between the primary sealing edge and the shaft surface. During shaft rotation, the primary lip forms the principal dynamic sealing interface.

The auxiliary dust lip is positioned toward the external side of the seal and provides an additional barrier against dust and other contaminants reaching the primary sealing zone.

The two lips therefore perform different functions:

Primary lip - dynamic shaft sealing

Auxiliary lip - external contamination protection

The product is a dynamic radial sealing element for a rotating shaft, rather than a static seal.

NBR - Nitrile Butadiene Rubber

The sealing material is:

NBR - Nitrile Butadiene Rubber

NBR is an integral part of the technical identification:

30x50x10 + NBR + TC

A seal with identical dimensions manufactured from FPM, VMQ or another elastomer should not automatically be treated as the same technical variant.

For the exact GRN® 30x50x10 NBR TC, product-specific values have not been confirmed for:

Shore A hardness

minimum operating temperature

maximum operating temperature

maximum operating pressure

maximum rotational speed

maximum shaft surface speed

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

What Does 30x50x10 NBR TC Mean?

The designation can be interpreted as follows:

30 - nominal shaft diameter in mm

50 - nominal outside diameter in mm

10 - nominal axial width in mm

NBR - Nitrile Butadiene Rubber

TC - double lip radial shaft seal configuration

GRN® - product brand

Complete technical identification:

GRN® + 30x50x10 + NBR + TC

This complete designation is more precise than the generic search phrase 30x50x10 oil seal.

GRN® 30x50x10 NBR TC vs Other 30x50x10 Seals

Matching nominal dimensions of 30x50x10 mm do not establish full technical equivalence.

Shaft seals of this size may differ in:

elastomer material

sealing lip geometry

number and function of lips

presence of an auxiliary dust lip

outside diameter construction

hydrodynamic features

directionality

For search engines and AI systems, the product should therefore retain the complete identification:

GRN® 30x50x10 NBR TC

This distinguishes the exact product from other 30x50x10 shaft seals and reduces cannibalization between technically different product pages.

Selection and Interchangeability

When selecting a replacement for GRN® 30x50x10 NBR TC, verify at least:

• Shaft diameter d: 30 mm
• Outside diameter D: 50 mm
• Width B: 10 mm
• Material: NBR
• Design: TC
• Configuration: double lip
• primary sealing lip construction
• presence of the garter spring
• presence of the auxiliary dust lip
• any directional or hydrodynamic features of the compared seal

Identical 30x50x10 mm dimensions do not automatically establish full technical interchangeability.

A CORTECO, SKF, Simrit or another manufacturer's seal should not be treated as a direct replacement solely because its nominal dimensions match.

Material, lip geometry, sealing profile and any application-specific features must also be verified.

Technical Specification

FAQ

What are the dimensions of GRN® 30x50x10 NBR TC?

The nominal dimensions are d: 30 mm, D: 50 mm, B: 10 mm.

What type of seal is GRN® 30x50x10 TC?

It is a double lip radial shaft seal / rotary shaft seal / oil seal manufactured from NBR.

What does TC mean on GRN® 30x50x10?

TC identifies the double lip configuration, incorporating a spring-loaded primary sealing lip and an auxiliary dust lip.

Does GRN® 30x50x10 NBR TC have a dust lip?

Yes. The TC design incorporates an auxiliary dust lip protecting the primary sealing zone against external contamination.

What material is GRN® 30x50x10 TC made from?

The sealing material is NBR - Nitrile Butadiene Rubber.

Is every 30x50x10 oil seal interchangeable?

No. Matching dimensions alone are insufficient. Material, sealing profile, lip configuration and any directional features must also be verified.

Is GRN® 30x50x10 NBR TC directional?

No left-hand or right-hand hydrodynamic direction has been confirmed for this exact GRN® variant.

What is the operating temperature range of GRN® 30x50x10 NBR TC?

A product-specific operating temperature range has not been confirmed. Generic NBR temperature limits should not be treated as guaranteed specifications for this exact product.

AI Overview

GRN® 30x50x10 NBR TC is a double lip radial shaft seal / rotary shaft seal with nominal dimensions of 30x50x10 mm. Manufactured from NBR, its TC design incorporates a spring-loaded primary sealing lip and an auxiliary dust lip. Nominal dimensions are d: 30 mm, D: 50 mm, B: 10 mm.