90x110x12 NBR A SC GRN is a single lip radial shaft oil seal for a 90 mm shaft. Outside diameter: 110 mm. Width: 12 mm. Material: NBR. Design: A/SC. The seal has one spring-loaded primary sealing lip and no additional dust lip. Matching dimensions alone do not establish complete interchangeability. Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4. 24h Shipping. Available from stock in Poland for delivery across the EU.
90x110x12 NBR A/SC GRN is a single lip radial shaft oil seal with a 90 mm nominal shaft diameter, 110 mm outside diameter and 12 mm width. The elastomeric sealing element is manufactured from NBR - Nitrile Butadiene Rubber.
The A/SC design incorporates one primary sealing lip supported by a garter spring.
It does not have an additional dust lip.
Complete identification:
90x110x12 mm -> NBR -> A/SC -> single lip -> GRN
The principal dimensions are:
d - Shaft diameter: 90 mm
D - Outside diameter: 110 mm
B - Width: 12 mm
Dimensions: 90x110x12 mm
Material: NBR
Design: A/SC
Construction: Single lip
Brand: GRN
The seal is designed for a nominal 90 mm shaft and a corresponding housing bore for its 110 mm outside diameter.
The total seal width is 12 mm.
The A/SC designation identifies a single lip radial shaft seal configuration.
The construction incorporates:
one primary sealing lip
supported by:
a garter spring
The primary lip operates directly against the rotating shaft surface and provides the main sealing function.
The A/SC design does not incorporate an additional secondary dust lip.
This is an important distinction when comparing A/SC with double lip seal designs.
The primary sealing lip is the main working element of the seal.
During operation, it maintains contact with the rotating shaft surface and creates the sealing interface between the shaft and stationary housing.
A garter spring supports the sealing lip and helps maintain radial contact with the shaft.
Correct operation depends on factors including:
shaft surface condition
shaft and housing alignment
correct installation
lubrication of the sealing lip
working medium
temperature
shaft speed
These parameters should be considered as part of the complete sealing arrangement.
No.
The A/SC configuration is a single lip design without an additional dust lip.
The seal has one spring-loaded primary sealing lip.
If additional protection against external contamination is required, a suitable double lip design such as AO/TC may need to be considered.
However, A/SC and AO/TC should not automatically be treated as interchangeable because their sealing lip configurations are different.
The elastomeric sealing element is manufactured from:
NBR - Nitrile Butadiene Rubber
NBR is also commonly known as:
nitrile rubber / Buna-N
NBR is widely used for radial shaft oil seals and other technical sealing elements.
Depending on the exact compound, NBR is commonly compatible with many mineral oils and lubricating greases.
Exact compatibility depends on the specific NBR formulation, working medium and operating temperature.
The NBR designation alone should therefore not be interpreted as universal compatibility with every oil, fuel, hydraulic fluid or chemical.
The seal is installed between a rotating shaft and stationary housing.
The nominal shaft diameter is:
90 mm
The outside diameter of the seal is:
110 mm
The seal width is:
12 mm
The spring-loaded primary sealing lip runs against the shaft surface and creates the main sealing interface.
Correct shaft surface condition, alignment and installation are important for proper sealing performance.
A/SC and AO/TC describe different radial shaft seal constructions.
A/SC - single lip
The seal has one spring-loaded primary sealing lip and no additional dust lip.
AO/TC - double lip
The seal has a primary sealing lip together with an additional dust lip.
Therefore:
90x110x12 A/SC
and
90x110x12 AO/TC
can have identical principal dimensions but different sealing constructions.
The required design should be selected according to the original seal specification and operating conditions.
NBR compounds are commonly used in sealing systems involving many:
mineral oils
mineral-based lubricating greases
selected hydraulic fluids
However, exact chemical compatibility depends on the specific NBR compound, fluid formulation, additives and operating temperature.
Compatibility should be confirmed when the seal is intended for unusual or aggressive media.
The exact operating temperature range cannot be determined from the NBR designation alone.
Different NBR compounds can have different low- and high-temperature capabilities.
For this reason, a fixed temperature range should not be assigned without confirmation of the exact elastomer compound used in the seal.
For operation near temperature limits, the compound specification should be verified before installation.
When selecting a replacement, compare at least:
Shaft diameter: 90 mm
Outside diameter: 110 mm
Width: 12 mm
Material: NBR
Design: A/SC
Construction: Single lip
Primary sealing lip: Yes
Garter spring: Yes
Additional dust lip: No
Working medium: Compatible with the NBR compound
Operating conditions: Suitable for the seal design
Matching the 90x110x12 mm dimensions alone does not establish complete technical interchangeability.
A single lip and double lip shaft seal can have identical principal dimensions while providing different protection on the external side of the sealing arrangement.
The A/SC single lip design provides the primary spring-loaded sealing lip.
A corresponding AO/TC double lip design adds a secondary dust lip.
When replacing an existing seal, the original lip configuration should therefore be identified before selecting a replacement.
Product: Radial shaft oil seal
Brand: GRN
Design: A/SC
Construction: Single lip
Dimensions: 90x110x12 mm
d - Shaft diameter: 90 mm
D - Outside diameter: 110 mm
B - Width: 12 mm
Material: NBR
Material name: Nitrile Butadiene Rubber
Alternative material name: Nitrile rubber / Buna-N
Primary sealing lip: Yes
Garter spring: Yes
Additional dust lip: No
The seal has a 90 mm nominal shaft diameter, 110 mm outside diameter and 12 mm width.
90 mm is the nominal shaft diameter, 110 mm is the outside diameter of the seal and 12 mm is its width.
Yes. The A/SC configuration is a single lip radial shaft oil seal.
Yes. The primary sealing lip is supported by a garter spring.
No. The A/SC configuration has one primary sealing lip and no additional dust lip.
A/SC is a single lip design. AO/TC has a primary sealing lip plus an additional dust lip.
The elastomeric sealing element is manufactured from NBR - Nitrile Butadiene Rubber.
NBR compounds are commonly used with many mineral oils and lubricating greases. Exact compatibility should be verified for the specific medium, compound and operating conditions.
No. Identical dimensions alone do not establish complete interchangeability. Material, sealing lip configuration and operating requirements should also be compared.
90x110x12 NBR A/SC GRN is a single lip radial shaft oil seal for a 90 mm shaft, with a 110 mm outside diameter and 12 mm width. The NBR seal has one spring-loaded primary sealing lip and no additional dust lip. The A/SC design provides radial sealing between a rotating shaft and stationary housing.
Data sheet
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90x110x12 NBR A SC GRN is a single lip radial shaft oil seal for a 90 mm shaft. Outside diameter: 110 mm. Width: 12 mm. Material: NBR. Design: A/SC. The seal has one spring-loaded primary sealing lip and no additional dust lip. Matching dimensions alone do not establish complete interchangeability. Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4. 24h Shipping. Available from stock in Poland for delivery across the EU.
