Rotary Shaft Seal CORTECO 19033637 NBR SB Oil Seal 100x125x13

Industrial and construction applications

NBR SB single lip design advantages

Technical specifications and compatibility

Main description

The CORTECO 19033637 100x125x13 NBR SB rotary shaft seal is a high-performance oil seal ring designed for reliable rotary sealing in demanding industrial, construction and agricultural applications. Manufactured from durable NBR (nitrile butadiene rubber), this oil seal provides excellent resistance to oils, greases and wear, ensuring long-term sealing performance and reduced maintenance needs.

The SB designation identifies a single lip seal, engineered to provide effective protection against lubricant leakage while maintaining low friction. The primary sealing lip, supported by an internal tension spring, ensures consistent contact with the shaft surface, offering dependable rotary shaft sealing in environments where contaminants are relatively moderate. This design delivers efficient sealing for machinery where a double lip configuration is not required.

With dimensions 100x125x13, this shaft seal is commonly used in gearboxes, engines, pumps, drive systems and equipment requiring effective technical sealing of rotating components. It is also widely adopted in construction and heavy-duty machinery, including KOMATSU equipment under OEM reference 0701140100, making it a trusted choice for service and replacement applications.

The NBR material offers a balanced combination of elasticity, chemical resistance and mechanical stability, making this seal ring well-suited for contact with mineral oils and greases commonly found in industrial environments. The result is a reliable oil seal for machinery and engines that supports operational uptime and protection of critical components.

Designed to meet stringent quality standards, the CORTECO 19033637 oil seal is ideal for professional B2B customers seeking a cost-effective solution with high durability, oil and grease resistance and consistent performance in rotary sealing applications.

FAQ - Frequently Asked Questions

What does the SB designation mean in a shaft seal?
SB indicates a single lip design, providing effective lubrication sealing in less contaminated environments with reduced friction compared to dual lip seals.

What material is used in this oil seal?
This seal is made from NBR (nitrile butadiene rubber), known for excellent resistance to oils, greases and mechanical wear.

Where is the CORTECO 19033637 seal commonly used?
It is used in industrial machines, engines, gearboxes and construction equipment requiring reliable rotary shaft sealing.

How do I select the correct oil seal size?
You must match the shaft diameter (100 mm), housing inner diameter (125 mm) and width (13 mm) to your application’s requirements.

Is this oil seal suitable for continuous operation?
Yes, the SB single lip design and NBR material ensure stable performance in typical industrial environments.