GRN® 100x120x13 NBR AO/TC is a double lip rotary shaft seal / oil seal. Dimensions: d = 100 mm, D = 120 mm, B = 13 mm. Material: NBR. The AO/TC design combines a spring-loaded primary sealing lip with an auxiliary dust lip. Exact identification: GRN® + 100x120x13 mm + NBR + AO/TC.
Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4.
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GRN® 100x120x13 NBR AO/TC is a double lip rotary shaft seal / oil seal with nominal dimensions of 100x120x13 mm. The seal is manufactured from NBR - Nitrile Butadiene Rubber and uses the AO/TC double lip configuration. Its primary dynamic sealing lip is spring-loaded, while the additional auxiliary lip provides a second barrier on the external side of the sealing arrangement.
The exact product identification is:
GRN® + 100x120x13 mm + NBR + AO/TC
The verified identification data for this specific GRN® seal are:
Brand: GRN®
Product type: Rotary shaft seal / radial shaft seal / oil seal
Design: AO/TC
Lip configuration: Double lip
Material: NBR
Material family: Nitrile Butadiene Rubber
Dimensions: 100x120x13 mm
Shaft diameter d: 100 mm
Outside diameter D: 120 mm
Width: 13 mm
Primary sealing lip: Spring-loaded
Additional lip: Auxiliary dust/protective lip
EAN: 5903641600033
Reference: 100X120X13
For engineering identification, the dimensions alone are not sufficient. The NBR material and AO/TC lip configuration are also integral parts of the product specification.
The nominal installation dimensions are:
d = 100 mm - nominal shaft diameter
D = 120 mm - nominal outside diameter / corresponding housing bore diameter
width = 13 mm - nominal axial width of the seal
Complete dimensional designation:
100x120x13 mm
The 100 mm dimension identifies the nominal shaft diameter against which the primary dynamic sealing lip operates.
The 120 mm dimension defines the nominal outside diameter of the seal and therefore the corresponding nominal housing bore size.
The third dimension is the 13 mm axial width of this specific GRN® product.
When identifying a replacement, all three dimensions must be retained. A 100x120x10, 100x120x12, 100x120x13 and 100x120x15 seal are separate dimensional variants even if their shaft and housing diameters are identical.
The AO/TC designation identifies the double lip configuration of this GRN® rotary shaft seal.
The construction comprises:
Primary sealing lip - the dynamic lip operating against the rotating shaft.
Garter spring - applies radial loading to the primary sealing lip.
Auxiliary dust lip - an additional lip positioned on the external side of the main sealing arrangement.
The primary spring-loaded lip performs the principal dynamic sealing function between the stationary housing and rotating shaft. The auxiliary lip acts as an additional barrier between the external environment and the primary sealing zone.
This distinguishes the AO/TC double lip configuration from a corresponding single-lip construction without the additional protective lip.
The designation AO/TC should be retained when specifying or purchasing this product because seals with the same 100x120x13 mm installation dimensions can have different lip geometries.
GRN® 100x120x13 NBR AO/TC is a radial shaft seal, not a rolling bearing. Its function is therefore sealing rather than carrying radial or axial bearing loads.
During operation, the housing retains the seal while the 100 mm shaft rotates relative to the primary sealing lip. The spring-loaded lip maintains radial contact with the shaft sealing surface and provides the principal dynamic sealing interface.
The auxiliary lip does not replace the primary sealing lip. Its function is to provide an additional protective barrier on the atmospheric side of the seal.
No specific maximum shaft speed, rotational speed, pressure limit or permissible eccentricity has been assigned here because these values have not been confirmed for the exact GRN® 100x120x13 NBR AO/TC variant.
For this product:
GRN® - brand.
100x120x13 - nominal installation dimensions in millimetres.
NBR - Nitrile Butadiene Rubber elastomer family.
AO/TC - double lip sealing configuration with a spring-loaded primary sealing lip and an additional auxiliary dust/protective lip.
The profile code is important when comparing seals from different suppliers.
Seal-profile nomenclature is not completely universal between manufacturers. A similar-looking designation used by another manufacturer should therefore not by itself be treated as proof of complete interchangeability.
The designation AO/TC also does not establish a right-hand or left-hand hydrodynamic pumping structure. No direction-specific feature should be attributed to this product without separate documentation for the exact variant.
The specified sealing material is:
NBR - Nitrile Butadiene Rubber
NBR identifies the elastomer family used for this GRN® seal. It does not, by itself, identify the exact compound formulation.
Different NBR compounds can have different hardness, temperature limits, chemical compatibility and dynamic operating limits.
For that reason, this product should not automatically be assigned a specific:
Shore A hardness,
operating temperature range,
maximum shaft speed,
maximum pressure,
or detailed chemical compatibility
based solely on generic NBR data or specifications published by another seal manufacturer.
Where these parameters are critical to the application, they should be verified for the actual GRN® compound.
A replacement for GRN® 100x120x13 NBR AO/TC should not be selected from dimensions alone.
At minimum, compare:
shaft diameter: 100 mm
housing bore / seal outside diameter: 120 mm
axial width: 13 mm
sealing material: NBR
lip configuration: AO/TC double lip
primary lip construction: spring-loaded
additional protective lip: required
For an engineering replacement, the operating medium, shaft speed, temperature, pressure conditions, shaft surface, housing geometry and any direction-specific lip features should also be checked where relevant.
A seal from CORTECO, Freudenberg/Simrit, SKF or another manufacturer with nominal dimensions 100x120x13 mm is therefore not automatically a technical equivalent of this GRN® AO/TC variant.
Likewise, another GRN® seal with 100x120 mm diameters but a different width or lip configuration is a separate product and should not be merged with this reference.
| Parameter | Specification |
|---|---|
| Brand | GRN® |
| Reference | 100X120X13 |
| Product | Rotary shaft seal / radial shaft seal / oil seal |
| Design | AO/TC |
| Configuration | Double lip |
| Material | NBR |
| Material name | Nitrile Butadiene Rubber |
| Dimensions | 100x120x13 mm |
| Shaft diameter d | 100 mm |
| Outside diameter D | 120 mm |
| Axial width | 13 mm |
| Primary lip | Spring-loaded |
| Auxiliary lip | Dust/protective lip |
| EAN | 5903641600033 |
Parameters such as exact NBR hardness, compound designation, temperature range, pressure limit and maximum shaft speed are intentionally not included because they have not been confirmed for this exact GRN® variant.
The nominal dimensions are 100x120x13 mm: 100 mm shaft diameter, 120 mm seal outside diameter / nominal housing bore and 13 mm axial width.
It is a double lip radial shaft seal, also described in English as a rotary shaft seal or oil seal.
For this GRN® product, AO/TC identifies a double lip configuration with a spring-loaded primary sealing lip and an additional auxiliary dust/protective lip.
The specified elastomer is NBR - Nitrile Butadiene Rubber. The exact GRN® NBR compound and its hardness have not been independently confirmed.
Yes. The primary dynamic sealing lip is spring-loaded. The additional auxiliary lip performs a protective function.
Not automatically. In addition to 100x120x13 mm dimensions, compare the material, lip configuration, operating medium and relevant dynamic operating conditions. Identical nominal dimensions alone do not prove interchangeability.
The verified EAN is 5903641600033.
A specific temperature range and maximum shaft speed have not been confirmed for the exact GRN® 100x120x13 NBR AO/TC compound. These values should be verified before use where they are critical to the application.
GRN® 100x120x13 NBR AO/TC is a double lip rotary shaft seal with a 100 mm shaft diameter, 120 mm outside diameter and 13 mm width. Its AO/TC construction combines a spring-loaded primary dynamic sealing lip with an auxiliary dust lip. The specified elastomer is NBR - Nitrile Butadiene Rubber.
Data sheet
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GRN® 100x120x13 NBR AO/TC is a double lip rotary shaft seal / oil seal. Dimensions: d = 100 mm, D = 120 mm, B = 13 mm. Material: NBR. The AO/TC design combines a spring-loaded primary sealing lip with an auxiliary dust lip. Exact identification: GRN® + 100x120x13 mm + NBR + AO/TC.
Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4.
24h Shipping. Available from stock in Poland for delivery across the EU.
