CORTECO 12017267 NBR BASL Rotary Shaft Seal 29,37x46,83x6,3/7

Main Description

The CORTECO 12017267 NBR BASL rotary shaft seal is engineered for demanding industrial and automotive applications requiring robust and reliable sealing. With dimensions of 29.37 mm inner diameter, 46.83 mm outer diameter, and a cross section of 6.3 / 7 mm, this oil seal is optimized for use on rotating shafts in harsh environments.

Constructed from NBR (nitrile-butadiene rubber), the seal offers excellent resistance to oils, greases, and lubricants, making it ideal for rotating machines, engines, gearboxes, and pumps. The BASL design incorporates a primary sealing lip combined with a secondary dust lip, which significantly boosts protection against external contaminants, such as dust, dirt, and debris, without compromising on sealing efficiency.

This shaft sealing ring is designed with high durability in mind. The BASL-type rotary seal handles variations in housing bore surface roughness and thermal expansion, offering a tight fit even when installation tolerances are not perfect. The construction ensures minimal leakage, low friction, and increased service life, thereby reducing maintenance needs and downtime.

For industrial applications, this technical seal is effective in hydraulic systems, gearbox shafts, and electric motor assemblies. In automotive contexts, it is widely used in drive systems, transmission shafts, and pump drives. Its rotary seal design ensures dependable sealing under radial motion, while its double-lip configuration helps maintain integrity under contamination.

Technical Specifications

• Material: NBR (nitrile-butadiene rubber)

• Design: BASL (primary lip + dust lip)

• Inner Diameter (d): 29.37 mm

• Outer Diameter (D): 46.83 mm

• Width / Height: 6.3 mm (primary) / 7 mm (maximum)

• Seal Type: Rotary / oil seal

• Lip Configuration: Double lip (oil + dust)

• Shaft Compatibility: Designed for rotating shafts in industrial and automotive assemblies

• Operational Strengths: High resistance to oils, greases, hydraulic fluid; excellent durability and sealing performance in demanding environments

FAQ

Q1: What is the advantage of a BASL-type rotary seal?
A1: The BASL design includes both a primary sealing lip and a dust lip, improving protection against contamination while maintaining tight sealing efficiency — ideal for industrial and automotive conditions.

Q2: Why choose NBR material for the oil seal?
A2: NBR provides strong resistance to a wide range of oils and greases, ensuring long-term performance. It also resists wear and maintains flexibility, which helps with durability.

Q3: How do I select the correct shaft seal size?
A3: Measure the shaft diameter (for the inner dimension), the housing bore (for the outer diameter), and the required cross section. For this part, you need a seal 29.37 x 46.83 x 6.3/7 mm.

Q4: Can this rotary seal work in industrial machines?
A4: Yes, this seal is perfectly suited for industrial applications such as pumps, gearboxes, electric motors, and rotating shafts thanks to its robust lip design and material.

Q5: Is the CORTECO 12017267 suitable for automotive use?
A5: Absolutely — its oil resistance and double-lip construction make it ideal for automotive shafts, transmission components, and engine assemblies where sealing reliability is critical.