CORTECO 12010974B is an NBR radial shaft oil seal measuring 50x80x13 mm. Dimensions: shaft diameter d = 50 mm, housing bore diameter D = 80 mm, width B = 13 mm. CORTECO trade number: 82010974. Verified design designation: BAX7 Simmerring; BA is also listed for this reference. For replacement, compare the complete reference, dimensions, NBR material and seal design.
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CORTECO 12010974B is a radial shaft oil seal manufactured from NBR - Nitrile Butadiene Rubber, with nominal dimensions of 50x80x13 mm. The CORTECO trade number associated with this reference is 82010974, while current technical catalogue data identifies the construction as BAX7 Simmerring. Its function is to provide dynamic sealing at a rotating shaft while the outside diameter is seated in the stationary housing.
The exact product identification is:
Manufacturer / Brand: CORTECO
Part number: 12010974B
Trade number: 82010974
Product type: Radial shaft seal / oil seal
Material: NBR - Nitrile Butadiene Rubber
Design: BAX7 Simmerring
Additional catalogue designation: BA Simmerring
Dimensions: 50x80x13 mm
For technical identification, the combination:
12010974B + 50x80x13 mm + NBR + BAX7
is more precise than selecting the seal by dimensions alone.
The nominal dimensions are:
d = 50 mm - shaft diameter / inside diameter
D = 80 mm - housing bore diameter / outside diameter
B = 13 mm - seal width
Complete dimensional designation:
50x80x13 mm
For a radial shaft seal, these dimensions define the nominal shaft size, housing bore and axial installation width. A different construction or elastomer with the same three dimensions should not automatically be regarded as technically identical.
The verified catalogue design associated with CORTECO 12010974B is:
BAX7 Simmerring
Catalogue information also associates the reference with:
BA Simmerring
The BA family belongs to the radial shaft seal designs used for dynamic sealing of rotating shafts. CORTECO/Freudenberg catalogue information for BA radial shaft seals identifies this family as a spring-loaded radial shaft seal construction.
The more specific BAX7 designation should nevertheless be retained when identifying 12010974B. The additional X7 element should not be interpreted as a specific construction feature unless its meaning is confirmed in the applicable manufacturer documentation.
For this reason, the product should not be simplified merely to a generic 50x80x13 BA oil seal when exact replacement identification is required.
A radial shaft seal operates between two fundamentally different interfaces.
At the 50 mm inside diameter, the sealing edge works dynamically against the rotating shaft.
At the 80 mm outside diameter, the seal is installed in the stationary housing bore.
The spring-supported radial sealing principle maintains contact between the primary sealing edge and the shaft surface. This allows the seal to separate the lubricated side of an assembly from the opposite side while the shaft rotates.
Actual sealing performance depends not only on the oil seal itself but also on the shaft surface, housing geometry, installation accuracy, lubricant or medium, temperature and operating speed.
These operating limits should therefore be checked against the requirements of the actual machine rather than inferred from the dimensions alone.
The specified elastomer for CORTECO 12010974B is:
NBR - Nitrile Butadiene Rubber
Material identification is important when selecting a replacement. A 50x80x13 mm seal manufactured from another elastomer should not automatically be considered equivalent to this NBR version.
NBR is commonly used in radial shaft sealing technology, particularly where compatibility with suitable oils and greases is required. However, the exact operating temperature, chemical compatibility and permissible shaft speed depend on the specific compound and operating environment.
For 12010974B, fixed temperature, pressure or rotational-speed limits should therefore not be assigned without the corresponding CORTECO/Freudenberg compound and application data.
Confirmed identification references associated with this seal include:
CORTECO 12010974B
CORTECO 82010974
BAX7 Simmerring
Verified OE references found in technical catalogues include:
IVECO 543637
JCB 90407400
ZETOR 60111927
ZETOR 69111927
ZETOR 974010
OE reference matching is useful for identification, but the actual installation should still be checked against the equipment documentation and the physical requirements of the sealing position.
When replacing this oil seal, verify at least:
Part number: 12010974B
Shaft diameter d: 50 mm
Housing bore diameter D: 80 mm
Width B: 13 mm
Material: NBR
Design: BAX7
Trade number: 82010974
The dimensional designation 50x80x13 mm alone is not sufficient to establish complete interchangeability.
Two radial shaft seals may have identical nominal dimensions while differing in sealing-lip geometry, outside-diameter construction, elastomer, auxiliary features or application-specific design.
For maintenance and MRO purchasing, the safest comparison is therefore based on the complete manufacturer reference and construction specification.
Manufacturer: CORTECO
Part number: 12010974B
Trade number: 82010974
Product category: Radial shaft seal
Technical English term: Rotary shaft seal / radial shaft oil seal
Design: BAX7 Simmerring
Additional catalogue designation: BA Simmerring
Material: NBR - Nitrile Butadiene Rubber
d - Shaft diameter: 50 mm
D - Housing bore diameter: 80 mm
B - Width: 13 mm
Dimensions: 50x80x13 mm
CORTECO 12010974B has nominal dimensions of 50x80x13 mm: d = 50 mm shaft diameter, D = 80 mm housing bore diameter and B = 13 mm width.
The specified sealing material is NBR - Nitrile Butadiene Rubber.
It is a radial shaft seal, also described in English as a rotary shaft seal or radial shaft oil seal.
Current technical catalogue data identifies it as BAX7 Simmerring. BA Simmerring is also associated with this reference in catalogue data.
82010974 is the CORTECO trade number associated with part number 12010974B.
Not automatically. The dimensions, NBR material, BAX7 construction and requirements of the actual sealing position should be compared before establishing interchangeability.
A product-specific operating temperature or maximum rotational speed was not confirmed in the verified data used for this description. These limits should be determined from the applicable manufacturer documentation and operating conditions.
Verified catalogue references include IVECO 543637, JCB 90407400 and ZETOR 60111927, 69111927 and 974010.
CORTECO 12010974B is an NBR radial shaft oil seal measuring 50x80x13 mm, corresponding to d = 50 mm, D = 80 mm and B = 13 mm. Its CORTECO trade number is 82010974, and the verified design designation is BAX7 Simmerring. It uses a spring-supported radial sealing principle for rotating shafts.
Data sheet
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