CORTECO 12011412 NBR B2SL 90x110x13 mm is a double-lip radial rotary shaft oil seal. Inside diameter 90 mm, outside diameter 110 mm and width 13 mm. The B2SL profile features a spring-loaded primary sealing lip, an additional dust lip and a double-metal-case construction. NBR sealing material is commonly used with many mineral oils and greases. Verify dimensions, material and construction profile before replacement. CORTECO oil seals at simmering.pl, stock in Poland and international shipping.
CORTECO 12011412 NBR B2SL 90x110x13 mm is a double-lip radial rotary shaft seal manufactured by CORTECO. It features a 90 mm inside diameter, 110 mm outside diameter and 13 mm width. The seal combines NBR (Nitrile Butadiene Rubber) sealing material with a B2SL profile, a spring-loaded primary sealing lip, an additional dust lip and a double-metal-case construction. It is designed to retain lubricants and help protect rotating shaft assemblies against external contamination.
CORTECO 12011412 is a radial rotary shaft oil seal designed for mechanical assemblies containing rotating shafts.
Its B2SL construction combines a reinforced metal housing with an additional dust protection lip.
Key features:
Manufacturer: CORTECO.
Product reference: 12011412.
Nominal dimensions: 90x110x13 mm.
NBR sealing material.
B2SL construction profile.
Spring-loaded primary sealing lip.
Additional dust protection lip.
Double-metal-case construction.
Designed for dynamic rotary shaft sealing.
Suitable for appropriately designed industrial mechanical assemblies.
| Parameter | Specification |
|---|---|
| Manufacturer | CORTECO |
| Product reference | 12011412 |
| Product type | Radial rotary shaft seal |
| Technical designation | B2SL Simmerring |
| Inside diameter (d) | 90 mm |
| Outside diameter (D) | 110 mm |
| Width (B) | 13 mm |
| Sealing material | NBR |
| Seal profile | B2SL |
| Primary sealing lip | Spring-loaded |
| Additional dust lip | Yes |
| Outer case | Double-metal construction |
| Sealing type | Dynamic rotary shaft sealing |
| Sealing medium | Subject to material compatibility and operating conditions |
The exact operating temperature range, permissible pressure, maximum shaft speed and elastomer hardness must be confirmed using product-specific manufacturer documentation.
The complete designation identifies the manufacturer, product reference, material, construction profile and dimensions.
CORTECO - the manufacturer's brand.
12011412 - the product identification number.
NBR - Nitrile Butadiene Rubber, a synthetic elastomer commonly used in oil seals.
B2SL - a radial shaft seal profile featuring a double-metal-case construction, a spring-loaded primary sealing lip and an additional dust lip.
90x110x13 mm - nominal seal dimensions:
90 mm - inside diameter.
110 mm - outside diameter.
13 mm - width.
The primary sealing lip operates in contact with the rotating shaft surface.
Its function is to help prevent oil or grease from escaping the sealed mechanical assembly.
Sealing performance depends on shaft condition, lubrication, temperature, alignment and operating speed.
The primary sealing lip is supported by a circumferential garter spring.
The spring helps maintain contact between the sealing lip and the shaft during operation.
It is an important component of conventional spring-loaded radial shaft seals.
The SL designation indicates an additional protective lip designed to reduce the entry of external contaminants into the primary sealing area.
The dust lip helps protect against:
Dust.
Fine particles.
General environmental contamination.
This additional lip does not automatically make the seal suitable for continuous immersion or pressurized water exposure.
The B2 profile features a double-metal-case design.
This construction provides mechanical rigidity and differs from conventional rubber-covered outer cases.
For metal-cased seals, housing bore condition, correct interference fit and even installation are particularly important.
NBR, or Nitrile Butadiene Rubber, is widely used in industrial and automotive sealing applications.
Typical properties include:
Good resistance to many mineral oils.
Compatibility with many mineral-based greases.
Good mechanical properties.
Suitability for conventional rotating shaft seals.
Extensive use in lubricated mechanical assemblies.
Actual chemical resistance depends on the specific NBR compound, operating temperature and sealing medium.
Compatibility with particular fuels, solvents, hydraulic fluids or high-temperature environments must be verified separately.
Radial shaft seals with double-metal-case construction and an additional dust lip may be used in appropriately designed mechanical assemblies, including:
Industrial gearboxes.
Speed reducers.
Mechanical drive systems.
Agricultural machinery.
Industrial equipment.
Rotating shaft assemblies.
Mechanisms requiring additional dust protection.
These are general applications of B2SL seal construction, not a verified list of specific machines compatible with CORTECO 12011412.
Rotary shaft seals with identical nominal dimensions may feature different construction profiles.
| Profile | Spring-loaded primary lip | Additional dust lip | Outer case |
|---|---|---|---|
| B2SL | Yes | Yes | Double-metal |
| B2 | Yes | No, in the typical design | Double-metal |
| BASL | Yes | Yes | Rubber-covered |
| B1SL | Yes | Yes | Metal |
A B2SL oil seal is not automatically interchangeable with a BASL or B1SL seal, even when the nominal dimensions are identical.
Differences in outer-case construction may affect housing fit, installation and sealing performance.
Before ordering, verify:
CORTECO product reference 12011412.
Shaft diameter - 90 mm.
Housing bore diameter - 110 mm.
Seal width - 13 mm.
NBR sealing material.
B2SL construction profile.
Double-metal-case design.
Additional dust lip requirement.
Compatibility with the sealing medium.
Equipment manufacturer requirements and operating conditions.
When selecting a replacement, compare the complete seal designation rather than relying on dimensions alone.
Before installing the CORTECO 90x110x13 mm oil seal, inspect the shaft and housing bore.
Check for:
Shaft wear grooves.
Corrosion.
Scratches.
Sharp edges.
Contamination.
Excessive shaft runout.
Bearing play.
Housing bore dimensions and surface condition.
Install the seal evenly using an appropriate mounting tool.
Avoid deforming the metal case or transmitting mounting force through the sealing lips.
Protect the sealing lips when passing the seal over keyways, splines or sharp shaft edges.
For conventional oil-retention applications, the primary spring-loaded lip normally faces the lubricant.
The final installation orientation must follow the equipment manufacturer's instructions.
The seal measures 90x110x13 mm, with a 90 mm inside diameter, 110 mm outside diameter and 13 mm width.
B2SL identifies a radial rotary shaft seal profile with a double-metal-case construction, a spring-loaded primary sealing lip and an additional dust lip.
Yes. The B2SL profile includes a primary sealing lip and an additional dust protection lip.
Yes. The primary sealing lip is supported by a circumferential garter spring.
The sealing material is NBR, or Nitrile Butadiene Rubber.
Yes. The B2SL profile features a double-metal-case construction.
NBR is commonly used with many mineral oils. Compatibility with the specific lubricant and operating temperature must be verified.
Not automatically. B2SL has a double-metal-case construction, while BASL typically uses a rubber-covered outer case.
Yes. The additional dust lip helps reduce contamination entering the primary sealing area.
The B2SL designation alone does not establish a high-pressure rating. Permissible pressure must be verified using product-specific manufacturer data.
Only after verifying dimensional compatibility, sealing profile, material resistance and operating requirements.
Compatibility must be confirmed using the original part reference, complete seal designation and equipment manufacturer's documentation.
CORTECO 12011412 is an NBR B2SL radial rotary shaft seal measuring 90x110x13 mm. It features a spring-loaded primary sealing lip, an additional dust lip and a double-metal-case construction. The seal is designed to retain lubricants and help reduce external contamination around rotating shafts. Replacement selection requires verification of dimensions, material and profile.
simmering.pl supplies CORTECO rotary shaft seals, NBR and FKM oil seals, cassette seals, O-rings and industrial bearings for agricultural and industrial machinery.
Our warehouse is located in Lublin, Poland. We serve individual customers and B2B buyers, with shipping within Poland, across Europe and internationally.
Data sheet
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CORTECO 12011412 NBR B2SL 90x110x13 mm is a double-lip radial rotary shaft oil seal. Inside diameter 90 mm, outside diameter 110 mm and width 13 mm. The B2SL profile features a spring-loaded primary sealing lip, an additional dust lip and a double-metal-case construction. NBR sealing material is commonly used with many mineral oils and greases. Verify dimensions, material and construction profile before replacement. CORTECO oil seals at simmering.pl, stock in Poland and international shipping.
