CORTECO 01002833 NBR B1SL 35x47x7/9 mm - Rotary Shaft Oil Seal with Dust Lip

Characteristics of CORTECO 01002833

CORTECO 01002833 is a radial shaft seal designed to limit lubricant leakage where a rotating shaft passes through a stationary housing.

The B1SL profile combines a primary sealing function with an additional protective lip that helps prevent external contaminants from reaching the main sealing interface.

Unlike conventional oil seals with a single specified width, this product has a dimensional designation of 35x47x7/9 mm. Both axial dimensions are important when checking installation space and compatibility with the original seal.

Key product characteristics:

• Manufacturer: CORTECO.

• Part number: 01002833.

• Additional catalogue designation: 01002833B.

• Seal profile: B1SL.

• Sealing material: NBR.

• Nominal shaft diameter: 35 mm.

• Nominal housing bore diameter: 47 mm.

• Axial dimension 1: 7 mm.

• Axial dimension 2: 9 mm.

• Additional dust protection lip.

• Metal outer casing.

• Dynamic radial shaft sealing function.

The complete designation should be checked when replacing an existing seal. Matching shaft and housing diameters alone does not establish interchangeability.

Technical Specifications

The permissible operating temperature, maximum shaft speed, pressure capability, elastomer hardness and product mass have not been independently confirmed for this exact part number.

These parameters should be checked against the applicable manufacturer documentation when required for engineering selection.

What Does CORTECO 01002833 NBR B1SL Mean?

CORTECO - Manufacturer

CORTECO is a brand within the Freudenberg Group, supplying sealing solutions and replacement components for automotive and technical applications.

The manufacturer's part number is essential when identifying the correct replacement seal.

01002833 - Product Identification

01002833 identifies this specific CORTECO radial shaft oil seal.

The designation 01002833B is also associated with the product in catalogue references.

When selecting a replacement, compare the complete part number, B1SL profile, material and dimensional specification.

NBR - Nitrile Butadiene Rubber

NBR is a synthetic elastomer widely used in industrial oil seals.

Its relevant characteristics include:

• Compatibility with many mineral-based lubricating oils.

• Resistance to numerous industrial greases.

• Elasticity suitable for dynamic contact sealing.

• Wear resistance under appropriate lubrication conditions.

• Suitability for many conventional mechanical sealing applications.

NBR is not universally compatible with all synthetic oils, fuels, solvents or aggressive chemicals.

Compatibility must be assessed against the specific lubricant and operating conditions.

B1SL - Seal Profile

B1SL identifies a particular radial shaft seal construction.

For CORTECO 01002833, the profile includes an additional dust protection lip.

In this profile family, B1 refers to a metal outer casing design, while SL identifies the additional protective lip arrangement.

The precise cross-sectional geometry and detailed construction should be checked against the relevant manufacturer drawing.

The B1SL designation should not automatically be treated as equivalent to BA, BASL, TC or other radial shaft seal profiles.

35x47x7/9 mm - Dimensional Designation

The complete dimensional specification identifies:

• 35 mm - nominal shaft diameter.

• 47 mm - nominal housing bore diameter.

• 7 mm - first axial dimension.

• 9 mm - second axial dimension.

Both axial dimensions are relevant to installation.

The 7/9 mm designation must not be simplified to a conventional 7 mm or 9 mm seal width.

The additional axial dimension may affect the available installation space and the position of sealing components relative to the shaft.

Construction and Operating Principle

CORTECO 01002833 NBR B1SL is designed to seal the interface between a rotating shaft and a stationary housing.

Its performance depends on the primary sealing lip, additional dust lip, outer casing and condition of the mating surfaces.

Primary Sealing Lip

The primary sealing lip limits the escape of compatible lubricating oil or grease from the sealed assembly.

During shaft rotation, the lip maintains contact with the shaft surface, creating a dynamic sealing interface.

Effective operation requires suitable lubrication, shaft surface finish and alignment.

Excessive shaft wear, poor lubrication or installation damage can reduce sealing performance.

Additional Dust Lip

The B1SL profile incorporates an additional protective lip.

Its purpose is to help reduce the entry of dust and small external contaminants into the primary sealing area.

This arrangement may be beneficial in mechanical assemblies exposed to environmental contamination.

However, the additional lip does not automatically make the seal suitable for continuous water immersion, high-pressure cleaning or extremely abrasive conditions.

Metal Outer Casing

The B1SL construction features a metal outer casing designed for installation into a suitably prepared housing bore.

The condition and dimensional accuracy of the housing are important because the outer casing must establish the required seating and sealing conditions.

An incorrectly sized, damaged or contaminated housing bore may cause leakage at the interface between the seal and housing.

Shaft Surface Requirements

Sealing performance is influenced by:

• Shaft surface roughness.

• Shaft and housing concentricity.

• Radial shaft runout.

• Shaft surface wear.

• Lubricant compatibility.

• Operating temperature.

• Shaft surface speed.

• Environmental contamination.

A new oil seal may not correct leakage caused by a worn or damaged shaft surface.

CORTECO 01002833 B1SL vs Other 35x47 mm Oil Seals

Oil seals with similar nominal dimensions can differ in construction and installation requirements.

The main differences concern the additional protective lip, outer casing design and axial dimensions.

CORTECO 01002833 B1SL 35x47x7/9 mm should not be replaced with a standard 35x47x7 mm oil seal solely because the shaft and housing diameters match.

The original equipment requirements must be considered.

OEM References and Cross-References

The following catalogue references are associated with CORTECO 01002833B:

These references may assist with replacement part identification.

They do not independently confirm compatibility with every vehicle or machine produced by the listed manufacturers.

Before ordering, verify the original equipment number, installation position and technical requirements.

Applications of CORTECO 01002833

CORTECO 01002833B is associated with replacement part catalogue references for agricultural machinery, including CLAAS reference 02114500.

Its construction is intended for dynamic radial sealing of rotating shafts.

Typical application categories for this type of oil seal include:

• Agricultural machinery drive assemblies.

• Mechanical gearboxes.

• Rotating shafts in machinery housings.

• Selected power transmission mechanisms.

• Oil-lubricated mechanical assemblies.

• Equipment requiring lubricant retention and additional dust protection.

These are general applications of this seal construction, not confirmed fitments for every listed type of machinery.

The suitability of CORTECO 01002833 must be established from the relevant machine documentation.

Selection and Interchangeability

Before purchasing CORTECO 01002833 NBR B1SL, verify the following:

1. Full part number: 01002833 or 01002833B.

2. Seal profile: B1SL.

3. Sealing material: NBR.

4. Nominal shaft diameter: 35 mm.

5. Nominal housing bore diameter: 47 mm.

6. Both axial dimensions: 7 and 9 mm.

7. Presence of the additional dust lip.

8. Metal outer casing construction.

9. Housing bore condition and dimensional tolerance.

10. Lubricant type and material compatibility.

11. Operating temperature and shaft speed.

12. Original equipment reference, where applicable.

Particular attention should be paid to the full 35x47x7/9 mm designation.

Replacing this seal with a product having only a 7 mm axial width may change the positioning of the sealing elements relative to the shaft.

Identical nominal diameters do not guarantee equivalent sealing performance.

Installation and Operating Recommendations

Correct installation is essential for reliable operation.

Before fitting the seal, clean the shaft and housing bore thoroughly.

Inspect the shaft for:

• Scratches and sharp edges.

• Corrosion.

• Wear grooves left by the previous seal.

• Surface irregularities.

• Excessive runout or misalignment.

During installation:

• Remove contaminants and residues from the housing.

• Use a suitable seal installation tool.

• Apply installation force evenly to the appropriate casing surface.

• Avoid direct impact on the sealing lips.

• Protect the lips when passing over threads, keyways or sharp edges.

• Maintain correct alignment with the housing bore.

• Install the seal to the specified depth.

• Provide appropriate lubrication of the primary sealing lip.

• Confirm the correct orientation relative to the sealed medium.

For a conventional oil-retaining arrangement, the primary sealing lip normally faces the lubricant being retained, while the additional dust lip faces the external environment.

Always follow the equipment manufacturer's instructions where a different installation arrangement is specified.

Storage

Store unused NBR oil seals in a clean, dry environment away from direct sunlight, excessive heat, ozone and chemicals that may affect elastomer properties.

Avoid deformation of the sealing lips during storage.

Alternative Designations and Search References

The product may also be identified using the following descriptions:

• CORTECO 01002833

• CORTECO 01002833B

• 01002833 CORTECO

• 01002833B CORTECO

• CORTECO 35x47x7/9 NBR B1SL

• CORTECO B1SL 35x47x7/9 oil seal

• CORTECO 01002833 rotary shaft seal

• CORTECO 01002833 Simmerring

• CORTECO 35x47x7/9 radial shaft seal

• 35x47x7/9 NBR oil seal with dust lip

Associated OEM references include CLAAS 02114500 and IVECO 759371, subject to application verification.

FAQ - CORTECO 01002833

1. What are the dimensions of CORTECO 01002833?

The seal is designed for a nominal shaft diameter of 35 mm and housing bore diameter of 47 mm, with two specified axial dimensions of 7 and 9 mm. Its full dimensional designation is 35x47x7/9 mm.

2. What does B1SL mean on CORTECO 01002833?

B1SL identifies the radial shaft seal profile. In this construction, it indicates a metal outer casing and an additional dust protection lip.

3. What material is CORTECO 01002833 made from?

The sealing material is NBR, or nitrile butadiene rubber, commonly used with compatible mineral oils and industrial greases.

4. What does 7/9 mm mean in the seal dimensions?

It identifies two different axial dimensions of the seal. The designation should not be treated as equivalent to a conventional oil seal with a single width of 7 mm or 9 mm.

5. Does CORTECO 01002833 have a dust lip?

Yes. The B1SL profile includes an additional dust protection lip that helps reduce the entry of external contaminants into the primary sealing area.

6. Can CORTECO 01002833 be replaced with a BASL oil seal?

Not without technical verification. B1SL and BASL seals may differ in outer casing construction, sealing geometry and axial dimensions.

7. Is CLAAS 02114500 associated with CORTECO 01002833?

CLAAS 02114500 is listed as a catalogue reference associated with CORTECO 01002833B. Final compatibility should be confirmed using the machine's technical documentation.

8. Is CORTECO 01002833 a right-hand directional oil seal?

The B1SL designation alone does not establish a right-hand directional sealing geometry. A directional feature should not be assumed without confirmation from the manufacturer's technical documentation.

CORTECO 01002833 - Key Technical Information

CORTECO 01002833 NBR B1SL is a radial shaft oil seal with dimensions of 35x47x7/9 mm. Made from nitrile butadiene rubber, it features an additional dust lip and a metal outer casing. The product is also referenced as 01002833B. Both axial dimensions and the B1SL construction must be considered when selecting a compatible replacement.

CORTECO 01002833 is available from simmering.pl, a specialist supplier of industrial oil seals, rotary shaft seals and rolling bearings.

With warehouse operations in Lublin, Poland, simmering.pl supplies industrial maintenance departments, engineering businesses and international B2B customers, with worldwide shipping options.