GRN 100x120x15 NBR AO/TC is a double lip radial shaft oil seal with a 100 mm inner diameter, 120 mm outer diameter and 15 mm width. Features a spring-loaded primary sealing lip, additional dust exclusion lip, rubber-covered outer diameter and internal metal reinforcement. NBR elastomer provides resistance to many mineral oils and greases. Designed to reduce lubricant leakage and protect rotating shafts against contamination. Suitable for appropriately selected gearboxes, reducers and industrial machinery. Available from simmering.pl, Lublin, Poland, with EU and international shipping.
GRN 100x120x15 NBR AO/TC is a double lip radial shaft oil seal (Simmerring) with an inner diameter of 100 mm, an outer diameter of 120 mm and a width of 15 mm. Manufactured from nitrile butadiene rubber (NBR), this rotary shaft seal features an AO/TC construction with a primary sealing lip, an additional dust exclusion lip and a garter spring supporting the main sealing lip.
The GRN oil seal is designed to reduce oil and grease leakage from mechanical assemblies containing rotating shafts. The additional dust lip helps protect the main sealing contact area against dust, dirt and other external contaminants.
The AO/TC design is widely used in industrial power transmission systems, gearboxes, gear reducers, production machinery and mechanical assemblies requiring both lubricant retention and additional protection against contamination.
The GRN 100x120x15 oil seal is intended for installation in a correctly dimensioned housing bore and operation on a shaft with a nominal diameter of 100 mm.
|
Parameter |
Specification |
|---|---|
|
Brand |
GRN |
|
Product type |
Radial shaft oil seal |
|
Alternative name |
Simmerring |
|
Seal profile |
AO / TC |
|
Construction |
Double lip |
|
Elastomer material |
NBR - Nitrile Butadiene Rubber |
|
Inner diameter d |
100 mm |
|
Outer diameter D |
120 mm |
|
Width b |
15 mm |
|
Nominal dimensions |
100x120x15 mm |
|
Primary sealing lip |
Spring-loaded |
|
Additional sealing lip |
Dust exclusion lip |
|
Garter spring |
Yes, on the primary sealing lip |
|
Outer surface |
Rubber-covered, TC type |
|
Internal reinforcement |
Metal reinforcing insert |
|
Motion type |
Rotary |
|
Primary application |
Oil and grease sealing |
|
Additional function |
Protection against external contamination |
|
NBR hardness |
Not confirmed for this specific version |
|
Maximum shaft surface speed |
Depends on operating conditions |
|
Permissible pressure |
Depends on seal design and application |
|
Operating temperature range |
Depends on NBR compound and operating conditions |
|
Symbol |
Value |
Description |
|---|---|---|
|
d |
100 mm |
Nominal shaft diameter |
|
D |
120 mm |
Nominal housing bore diameter |
|
b |
15 mm |
Axial seal width |
|
D - d |
20 mm |
Difference between outer and inner diameters |
|
(D - d) / 2 |
10 mm |
Nominal radial cross-section height |
The dimensions 100x120x15 mm indicate the shaft diameter, housing bore diameter and axial width, respectively.
When replacing an existing oil seal, all three dimensions and the construction type must be checked.
Oil seals with identical nominal dimensions may differ in lip arrangement, elastomer material, housing design and operating characteristics.
GRN is a brand of technical sealing components, including radial shaft oil seals and other sealing products used in industrial mechanical applications.
NBR is a synthetic elastomer commonly used in oil seals designed for contact with many mineral oils, industrial greases and petroleum-based lubricants.
It provides a useful combination of oil resistance, mechanical properties and flexibility for conventional sealing applications.
AO identifies a shaft seal configuration incorporating a primary sealing lip and an additional dust exclusion lip.
The primary lip helps retain the operating lubricant, while the secondary lip reduces the entry of contaminants from the external environment.
TC is a widely used designation for a double lip radial shaft seal featuring a rubber-covered outer diameter, internal metal reinforcement and a spring-loaded primary sealing lip.
AO and TC may describe similar sealing configurations. However, interchangeability between manufacturers must be verified for the specific application.
The primary sealing lip operates in contact with the rotating shaft and creates a sealing interface designed to reduce oil or grease leakage.
In a typical TC construction, the primary lip is supported by a garter spring that helps maintain the required contact pressure against the shaft surface.
The secondary lip is positioned toward the external environment.
Its purpose is to reduce the entry of dust, dirt and fine contaminants toward the main sealing lip.
The additional lip improves contamination protection but does not make the seal completely waterproof or suitable for unrestricted exposure to pressurized water.
The TC-type seal incorporates an internal metal reinforcing element.
This reinforcement helps maintain the geometry of the seal during installation and operation.
The rubber-covered outer surface provides the interference fit within the housing bore and helps seal the static interface between the seal body and the housing.
Nitrile Butadiene Rubber is one of the most widely used elastomers in radial shaft oil seal manufacturing.
NBR provides good resistance to many mineral oils and lubricating greases used in industrial machinery.
This makes it suitable for a broad range of conventional oil sealing applications.
NBR offers flexibility and wear resistance appropriate for many standard sealing conditions.
Actual performance depends on the elastomer formulation, operating temperature, lubrication and shaft surface characteristics.
Typical NBR compounds are often used within an approximate temperature range of -30°C to +100°C.
This is a general material reference range, not a confirmed operating temperature specification for the particular GRN 100x120x15 seal.
The permissible temperature depends on the NBR compound, operating medium, shaft speed and sealing conditions.
NBR is not compatible with every chemical medium.
Resistance to ozone, weathering and certain chemical substances may be limited.
For applications involving higher temperatures or more demanding chemical exposure, a suitably selected FPM/FKM shaft seal may be considered.
|
Feature |
AO / TC Double Lip |
Single Lip |
|---|---|---|
|
Primary sealing lip |
Yes |
Yes |
|
Additional dust lip |
Yes |
Usually not |
|
Garter spring |
Typically yes |
Depends on design |
|
Contamination protection |
Additional exclusion lip |
Depends on construction |
|
Primary purpose |
Lubricant retention and additional dust protection |
Basic shaft sealing |
|
Interchangeability |
Requires verification |
Requires verification |
The AO/TC double lip configuration is particularly useful where lubricant retention must be combined with additional protection against external contaminants.
Double lip radial shaft seal construction.
Additional dust exclusion lip.
Spring-loaded primary sealing lip.
NBR elastomer resistant to many mineral oils and greases.
Internal metal reinforcing insert.
Rubber-covered outer diameter.
Nominal dimensions of 100x120x15 mm.
Designed for rotating shaft sealing.
Suitable for appropriately selected industrial gearboxes and mechanical assemblies.
Helps reduce lubricant leakage and contamination ingress.
Double lip shaft seals are used in gearboxes to help retain lubricating oil and reduce contamination entering the mechanism.
Radial shaft seals are incorporated into power transmission assemblies where lubricant must remain inside the housing.
Oil seals can protect shaft and bearing assemblies against lubricant loss and external contamination.
Double lip seals are used in selected agricultural machine mechanisms exposed to lubricants and external dirt.
AO/TC oil seals may be used in rotating mechanical assemblies where their dimensions, material and construction meet the equipment requirements.
These applications are representative of this type of radial shaft seal and do not establish specific OEM compatibility for the GRN 100x120x15 product.
The correct seal must be selected based on its dimensions, construction and operating requirements.
Important selection criteria include:
Shaft diameter - 100 mm.
Housing bore diameter - 120 mm.
Seal width - 15 mm.
Double lip AO/TC construction.
NBR elastomer material.
Type of lubricating oil or grease.
Operating temperature.
Shaft surface speed.
Dust and contamination exposure.
Shaft and housing surface condition.
Matching nominal dimensions alone does not guarantee interchangeability because different seal profiles may have different operating characteristics.
When selecting a replacement oil seal, the nominal dimensions must be checked together with the double lip construction, elastomer material and outer housing design.
A seal from another manufacturer may be suitable if the following characteristics are confirmed:
Dimensions of 100x120x15 mm.
Double lip sealing profile.
NBR material.
Rubber-covered outer diameter.
Garter spring configuration.
Operating conditions and application requirements.
AO and TC are often used for similar shaft seal designs, but the designations do not automatically guarantee complete interchangeability across all manufacturers.
Before installation, check that the shaft surface is clean, smooth and free from mechanical damage.
Scratches, burrs and corrosion can accelerate sealing lip wear and cause leakage.
The housing bore should be clean and manufactured to the required tolerances.
Remove old seal residues, dirt and other contaminants before installation.
The seal should be pressed evenly into the housing using a suitable installation tool.
Do not apply direct impact to the sealing lips or deform the seal body.
The primary spring-loaded sealing lip should normally face the medium being sealed unless the equipment manufacturer's instructions specify otherwise.
The additional dust lip should face the external environment.
Before initial operation, the sealing contact surface should be lubricated appropriately for the application.
For double lip designs, lubrication of the space between the sealing lips should also be considered in accordance with the installation recommendations.
Misalignment or sealing lip damage during installation may cause leakage.
Grooves, corrosion and damage to the shaft contact surface can reduce sealing performance.
Inadequate lubrication can increase friction and operating temperature at the sealing contact.
Exceeding the permissible operating temperature may cause NBR hardening and degradation.
Exposure to a chemically incompatible substance can cause elastomer swelling, deterioration or loss of sealing properties.
1. What is the GRN 100x120x15 NBR AO/TC oil seal?
It is a double lip radial shaft oil seal manufactured from nitrile rubber NBR, with nominal dimensions of 100x120x15 mm.
2. What does AO/TC mean?
AO/TC refers to a double lip shaft seal with a primary sealing lip and an additional dust exclusion lip. The TC design typically includes a rubber-covered outer diameter and a spring-loaded main lip.
3. What are the dimensions of the seal?
The inner diameter is 100 mm, the outer diameter is 120 mm and the width is 15 mm.
4. What does NBR mean?
NBR stands for Nitrile Butadiene Rubber, a synthetic elastomer commonly used in seals designed for contact with many mineral oils and lubricating greases.
5. Does the oil seal have two lips?
Yes. The AO/TC construction includes a primary sealing lip and an additional dust exclusion lip.
6. Does the GRN AO/TC oil seal have a garter spring?
Yes. The typical AO/TC construction incorporates a garter spring supporting the primary sealing lip.
7. Can the GRN 100x120x15 seal be used in gearboxes?
It may be used in appropriately designed gearboxes when its dimensions, construction and material match the application requirements.
8. Is NBR resistant to oil?
Yes. NBR provides good resistance to many mineral oils and industrial lubricating greases.
9. Can a double lip AO/TC oil seal be replaced with a single lip seal?
Not without verifying the equipment requirements. A double lip seal provides additional protection against external contaminants.
10. How should a double lip oil seal be installed?
The spring-loaded primary lip should normally face the sealed medium, while the additional dust lip faces outward. Always follow the equipment manufacturer's installation requirements.
11. Can an NBR 100x120x15 oil seal be replaced with an FPM seal?
Only after confirming dimensional, construction and operating compatibility. FPM and NBR have different material characteristics.
12. Where can I buy the GRN 100x120x15 AO/TC oil seal?
The product is available from simmering.pl, a supplier of radial shaft seals, bearings and industrial components with a warehouse in Lublin, Poland, serving customers throughout Poland, the European Union and international markets.
GRN 100x120x15 NBR AO/TC is a double lip radial shaft oil seal with a 100 mm inner diameter, 120 mm outer diameter and 15 mm width. Manufactured from nitrile rubber, it features a spring-loaded primary sealing lip and an additional dust exclusion lip. The seal helps retain lubricants and protect rotating mechanical assemblies against external contamination.
The GRN 100x120x15 AO/TC oil seal is supplied by simmering.pl, an industrial sealing and bearing specialist based in Lublin, Poland, serving customers in Poland, the European Union and international markets.
Data sheet
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GRN 100x120x15 NBR AO/TC is a double lip radial shaft oil seal with a 100 mm inner diameter, 120 mm outer diameter and 15 mm width. Features a spring-loaded primary sealing lip, additional dust exclusion lip, rubber-covered outer diameter and internal metal reinforcement. NBR elastomer provides resistance to many mineral oils and greases. Designed to reduce lubricant leakage and protect rotating shafts against contamination. Suitable for appropriately selected gearboxes, reducers and industrial machinery. Available from simmering.pl, Lublin, Poland, with EU and international shipping.
