GRN® 135x155x13 NBR TC - Double Lip Radial Shaft Oil Seal with Dust Exclusion Lip

Product Description

GRN® 135x155x13 NBR TC is a double lip radial shaft oil seal (Simmerring) with nominal dimensions of 135x155x13 mm, manufactured from nitrile butadiene rubber (NBR). The seal features a primary sealing lip and an additional dust exclusion lip. Its construction is functionally comparable to the BASL sealing profile, which is commonly associated with a rubber-covered outer diameter, a spring-loaded primary sealing lip and an auxiliary dust lip.

The GRN® 135x155x13 oil seal is designed for installation on a shaft with a nominal diameter of 135 mm and in a housing bore with a nominal diameter of 155 mm. Its axial width is 13 mm.

The primary purpose of the oil seal is to reduce oil or grease leakage from rotating mechanical assemblies. The additional dust exclusion lip helps prevent dust, dirt and fine particles from reaching the primary sealing interface.

The nominal radial cross-section height is 10 mm.

Due to the relatively small difference between the inner and outer diameters combined with a large shaft diameter, correct installation, shaft surface condition, component alignment and suitable lubrication conditions are particularly important.

Technical Specifications - GRN® 135x155x13 NBR TC

Technical note: The supplied product information identifies a double lip NBR oil seal. BASL is used here as a comparable construction designation, not as an independently verified manufacturer-specific cross-reference. Profile terminology can vary between manufacturers.

Without verified documentation for this specific GRN® product, no particular NBR hardness, operating temperature range, maximum pressure, permissible shaft surface speed or exact spring specification should be assumed.

GRN® 135x155x13 Oil Seal Dimensions

The designation 135x155x13 mm is interpreted as follows:

• 135 mm - inner diameter, corresponding to the nominal shaft diameter.

• 155 mm - outer diameter, corresponding to the nominal housing bore diameter.

• 13 mm - axial width of the oil seal.

The nominal radial cross-section height is 10 mm.

This is a geometric value calculated from the difference between the outer and inner diameters. It does not represent the thickness of the rubber layer or the width of the sealing lip.

All dimensions are nominal. Shaft and housing tolerances must meet the equipment's design requirements.

What Does GRN® 135x155x13 NBR TC Mean?

GRN® - Oil Seal Brand

GRN® is a brand of technical sealing components offered for industrial and maintenance applications.

The simmering.pl product range includes radial shaft oil seals, O-rings and other technical components used in machinery maintenance and repair.

135x155x13 - Nominal Dimensions

The dimensional designation identifies the inner diameter, outer diameter and axial width.

For this product, these dimensions are 135 mm, 155 mm and 13 mm respectively.

NBR - Nitrile Butadiene Rubber

NBR is a synthetic elastomer widely used in seals designed to operate with many mineral oils and lubricating greases.

TC - Double Lip Construction

The TC designation identifies a double lip construction featuring a primary sealing lip and an additional dust exclusion lip.

BASL - Comparable Sealing Profile

BASL is a profile designation used in certain radial shaft seal naming systems.

A typical BASL construction features a rubber-covered outer diameter, a spring-loaded primary sealing lip and an additional dust exclusion lip.

However, TC and BASL should not be treated as automatically identical in every manufacturer's catalogue. Exact construction and interchangeability require verification.

Double Lip Oil Seal Construction

Primary Sealing Lip

The primary sealing lip operates in dynamic contact with the rotating shaft surface.

Its purpose is to reduce lubricant leakage from the mechanical assembly.

Sealing performance depends on:

• Shaft surface condition.

• Sealing lip geometry and material.

• Shaft surface speed.

• Operating temperature.

• Lubrication conditions.

• Shaft and housing alignment.

• Pressure inside the sealed assembly.

Additional Dust Exclusion Lip

The additional lip provides a protective function.

It helps limit the entry of external contaminants into the primary sealing contact area.

This is particularly important in mechanisms exposed to dust, dirt and fine particles.

However, a dust exclusion lip does not guarantee complete resistance to pressurized water or absolute sealing under all environmental conditions.

Garter Spring

Typical BASL-type radial shaft oil seals use a garter spring to support the primary sealing lip.

The spring helps maintain sealing contact with the shaft.

The exact spring construction of this GRN® product requires confirmation from the manufacturer's documentation.

Oil Seal Body and Outer Diameter

Typical BASL designs feature internal metal reinforcement and a rubber-covered outer diameter.

This construction helps maintain the seal's geometry and provides static sealing within the housing bore.

The detailed construction of the GRN® 135x155x13 oil seal should be verified against the manufacturer's specifications.

NBR Material - Properties and Chemical Resistance

Nitrile Butadiene Rubber is a commonly used material in radial shaft oil seals.

Its characteristic properties include:

• Good resistance to many mineral oils.

• Compatibility with numerous mineral oil-based lubricating greases.

• Elasticity required for dynamic shaft sealing.

• Suitability for appropriately designed mechanical systems.

NBR chemical resistance depends on the specific elastomer compound, temperature and operating medium.

Compatibility with all synthetic oils, fuels, solvents or aggressive chemicals should not be assumed.

The exact permissible operating temperature range for this oil seal must also be confirmed by the manufacturer.

Double Lip vs Single Lip Radial Shaft Oil Seals

An additional dust exclusion lip may be beneficial in environments exposed to contamination.

However, a double lip design is not necessarily the best choice for every application.

Selection depends on operating conditions, lubrication, temperature and equipment requirements.

GRN® 135x155x13 Compared with Other Oil Seal Dimensions

When selecting a replacement oil seal, all three dimensions must be checked.

The dimensions in this table are provided for geometric comparison only.

135x155x13 vs 135x160x12

Both variants have an inner diameter of 135 mm.

However, their outer diameters differ by 5 mm and their widths differ by 1 mm.

They are not directly interchangeable.

135x155x13 vs 135x160x15

Both variants are nominally designed for a shaft diameter of 135 mm.

However, the 135x160x15 variant requires a larger housing bore and has an axial width that is 2 mm greater.

It is not a direct dimensional replacement for the 135x155x13 oil seal.

Matching shaft diameter alone is insufficient to confirm oil seal interchangeability.

Alternative Product Names

The product may be searched for using the following designations:

• GRN® 135x155x13 NBR TC

• GRN® 135x155x13 Simmerring

• 135x155x13 NBR radial shaft oil seal

• GRN® 135x155x13 double lip oil seal

• 135x155x13 shaft seal with dust exclusion lip

• GRN® 135x155x13 BASL-type oil seal

The last designation refers to the supplied construction characteristics and does not constitute an independently verified catalogue cross-reference.

No unverified OEM references or replacement part numbers from other manufacturers have been assigned.

How to Select the GRN® 135x155x13 NBR TC Oil Seal

Before purchasing, verify the following:

1. Shaft diameter: nominally 135 mm.

2. Housing bore diameter: nominally 155 mm.

3. Axial width: 13 mm.

4. Sealing profile: double lip with an additional dust exclusion lip.

5. Elastomer material: NBR compatible with the operating medium.

6. Shaft surface condition: absence of damage that could compromise sealing.

7. Rotational speed: compatibility with permissible operating conditions.

8. Operating temperature: actual temperature at the sealing interface.

9. Pressure: conditions inside the housing.

10. Environment: presence of dust, moisture and contaminants.

11. Seal body construction: compatibility with equipment requirements.

Shaft Surface Speed for a 135 mm Shaft

Shaft surface speed can be calculated using:

Where:

• v - shaft surface speed in m/s.

• d - shaft diameter in mm.

• n - rotational speed in rpm.

For a shaft diameter of 135 mm:

These values are based solely on geometric calculations.

They do not represent verified permissible operating speeds for the GRN® 135x155x13 NBR TC oil seal.

With a large shaft diameter, even moderate rotational speeds can generate substantial linear velocity at the sealing lip contact area.

Therefore, lubrication conditions, temperature and manufacturer-approved operating limits must be considered during product selection.

Typical Applications of TC Double Lip Oil Seals

Radial shaft oil seals with an additional dust exclusion lip are used in appropriately designed rotating mechanical assemblies where lubricant retention and contamination protection are required.

General application categories include:

• Mechanical drive systems.

• Gearboxes and rotating assemblies.

• Bearing housings.

• Industrial machinery.

• Equipment with rotating shafts.

These are general applications of this sealing construction, not verified OEM applications of the specific GRN® 135x155x13 product.

Final suitability depends on operating conditions and the equipment's technical documentation.

Installation of the GRN® 135x155x13 Oil Seal

Correct installation has a significant influence on sealing performance and service life.

Before installation, clean the shaft and housing bore and check for scratches, corrosion, burrs or wear grooves.

Install the oil seal evenly using an appropriate installation tool.

Installation force must not be transmitted through the sealing lips.

In typical applications, the primary sealing lip should face the retained lubricant, while the additional dust exclusion lip should face the external environment.

Final orientation must comply with the equipment's design requirements.

Before operation, ensure appropriate lubrication of the primary sealing lip contact area and consider the lubrication requirements of the space between the two lips.

Store the oil seal in a clean, dry environment protected from sunlight, ozone and deformation.

Frequently Asked Questions - GRN® 135x155x13 NBR TC

1. What are the dimensions of the GRN® 135x155x13 NBR TC oil seal?

The inner diameter is 135 mm, the outer diameter is 155 mm and the axial width is 13 mm. The nominal radial cross-section height is 10 mm.

2. What does TC mean in the GRN® 135x155x13 oil seal designation?

TC identifies a double lip construction featuring a primary sealing lip and an additional dust exclusion lip.

3. What does BASL mean in the oil seal description?

BASL is a profile designation used in certain radial shaft seal naming systems. It typically describes a construction with a rubber-covered outer diameter, a primary sealing lip and an additional dust exclusion lip.

4. Is an NBR oil seal suitable for oil?

NBR offers good resistance to many mineral oils and lubricating greases. Compatibility with the specific operating medium should be verified.

5. Can a 135x160x12 oil seal replace a 135x155x13 oil seal?

No, not as a direct dimensional replacement. The products differ in outer diameter and axial width.

6. Is a 135x160x15 oil seal interchangeable with a 135x155x13 oil seal?

No. The outer diameters differ by 5 mm and the axial widths differ by 2 mm.

7. Can an oil seal from another manufacturer with dimensions of 135x155x13 be used?

It may be suitable if the dimensions, material, sealing profile, construction and permissible operating conditions are compatible.

8. How should the GRN® 135x155x13 NBR TC oil seal be installed?

Clean the shaft and housing, inspect the surfaces, install the seal evenly and ensure correct sealing lip orientation and lubrication.

GRN® 135x155x13 NBR TC - Key Information

GRN® 135x155x13 NBR TC is a double lip radial shaft oil seal with nominal dimensions of 135x155x13 mm, manufactured from nitrile butadiene rubber. Its primary sealing lip and additional dust exclusion lip provide functionality comparable to a BASL-type construction. The nominal radial cross-section height is 10 mm. The seal helps reduce oil and grease leakage while limiting contamination ingress.

The GRN® 135x155x13 NBR TC oil seal is offered by simmering.pl, a specialist supplier of industrial sealing components, O-rings and bearings. The company operates a warehouse in Lublin, Poland, and serves customers in Poland and international markets.