Rotary Shaft Seals
Trusted by engineers in automotive, mining, food processing, and heavy industry — HENNLICH is India's go-to rotary seal supplier.
Rotary Shaft Seals — Precision Sealing Solutions by HENNLICH
When machinery operates, the difference between peak performance and costly downtime often comes down to one component — the seal. HENNLICH is a trusted seal supplier in India, offering an extensive range of rotary shaft seals engineered to protect your equipment from leaks, contamination, and premature wear. With decades of sealing expertise behind every product, HENNLICH delivers quality you can depend on — rotation after rotation.
What Are Rotary Shaft Seals?
A rotary shaft seal is a precision sealing element designed to prevent the escape of lubricants and the ingress of dust, dirt, and moisture at the interface between a rotating shaft and a stationary housing. Unlike static seals, rotating seals must maintain reliable contact under dynamic conditions — managing friction, speed, pressure, and temperature simultaneously.
Used across gearboxes, motors, pumps, compressors, axles, and bearing assemblies, rotary shaft seals are among the most critical components in any rotating machine. Choosing the wrong seal — or a low-quality one — leads to leakage, bearing damage, accelerated wear, and ultimately, unplanned production stops.
Our Rotary Seal Product Range
- Shaft Seals (Radial Shaft Seals / DIN 3760)
Our rotary shaft seals, also known as radial shaft seals or oil seals, conform to DIN 3760 standards and are designed to seal the rotating shaft against its housing. Each seal comprises a flexible elastomeric sealing lip - typically NBR, FKM, HNBR, or PTFE - bonded to a rigid metal casing for dimensional stability.
Available configurations include:
- Single-lip shaft seals — ideal for clean, standard environments
- Double-lip shaft seals — provide additional protection against dust and moisture
- PTFE-lipped variants — for high-temperature, aggressive media, or dry-running applications
Whether you operate in automotive, food processing, heavy machinery, or hydraulics, our rotating shaft seals are available in the precise dimensions and materials your application demands.
- V-Rings
V-rings are axially mounted rotating seals made from elastomer that press against an adjacent stationary surface to keep contaminants away from bearings and shaft seals. Unlike traditional lip seals, V-rings are self-adjusting and can tolerate shaft misalignment and eccentricity. They are particularly effective at protecting bearings from water, dust, and abrasive particles, extending the service life of primary sealing elements, and performing reliably at high shaft speeds. HENNLICH stocks V-rings in a comprehensive range of sizes and elastomer grades including NBR and FKM.
Key Advantages of HENNLICH Rotary Seals
Choosing HENNLICH as your seal supplier means more than just sourcing a component — it means investing in engineering performance, reliability, and long-term value.
- Superior Leak Prevention
Our rotary shaft seals feature precision-engineered sealing lips that maintain consistent radial force against the shaft surface, ensuring zero leakage across varying shaft speeds and thermal cycles. - Extended Service Life
High-quality elastomers and reinforced housings reduce friction and heat buildup, enabling our rotating shaft seals to outlast generic alternatives — lowering total cost of ownership and maintenance frequency. - Wide Material Compatibility
From standard mineral oils to aggressive chemicals, fuels, and high-temperature media, HENNLICH offers seal materials - including NBR, FKM, HNBR, EPDM, and PTFE - Protection Against Contamination
Rotary Shaft Seals with Dust Lip act as a dual barrier: retaining lubricants inside while blocking external contaminants. This is especially critical in mining, agriculture, and outdoor industrial machinery. - Dimensional Precision
All HENNLICH rotary shaft seals are manufactured to tight dimensional tolerances, ensuring proper housing fit, correct shaft contact, and consistent performance — eliminating the risk of premature failure due to fitment issues. - High-Speed Performance
Specially designed low-friction sealing lips and PTFE variants allow our rotary seals to operate effectively at high peripheral speeds without excessive heat generation, maintaining sealing integrity even in demanding drive applications. - Temperature & Pressure Resilience
Our rotating shaft seals are engineered to withstand a broad temperature range - from sub-zero cold starts to high-temperature operation — without hardening, cracking, or losing sealing contact.
Why Proper Seal Selection Matters:
Proper seal selection matters because it directly affects leak prevention, equipment reliability and reduce failures, downtime, and safety risks.
Selecting the correct rotary seal requires an understanding of several critical operating parameters:
- Shaft speed — higher peripheral velocities demand seals with low-friction lips or PTFE variants
- Operating temperature — material choice directly impacts thermal resistance and seal longevity
- Media compatibility — lubricating oils, chemicals, and water each require specific elastomer grades
- Shaft surface finish — Ra values between 0.2–0.8 µm are typically recommended for optimal sealing performance
- Pressure conditions — standard shaft seals operate best at low pressure; special designs are available for pressurized applications
Our technical experts assess your exact operating conditions and recommend the ideal seal configuration — eliminating guesswork and protecting your investment.
HENNLICH: Your Expert Seal Supplier in India
As a leading seal supplier with a strong local presence in Pune, Maharashtra, and national reach across India, HENNLICH brings together European engineering expertise and regional service excellence. Here is what sets us apart:
- Custom-Made Sealing Solutions — Standard dimensions don't always fit specialized equipment. Our capability allows us to supply rotating shaft seals to your exact drawing or sample.
- Fast Delivery Across India — Most standard rotary seals and V-rings are available for immediate dispatch, minimizing downtime when urgent replacements are needed.
- Highest Quality Standards — Every rotating seal we supply meets stringent quality and industry standards, backed by globally recognized brand partnerships.
- Expert Technical Support — Our experienced sealing specialists provide application-specific guidance, helping you select the right material, lip configuration, and design for your unique operating conditions.
Your added value
Frequently Asked Questions (FAQ’s)
A rotary shaft seal is used to prevent oil or fluid leakage in machines with rotating parts, while also keeping dust and dirt out.
Rotary seals are available in materials like:
- Nitrile Rubber (NBR) for general use
- Fluorocarbon (FKM) for high temperatures
- PTFE for chemical resistance
The lifespan depends on usage conditions, but a good-quality rotary seal can last a long time with proper installation and maintenance.
Yes, but you need to choose the right material (like Fluorocarbon or PTFE) for high-temperature applications.
Yes, but proper installation is important to avoid damage and ensure long life. Professional installation is recommended for best results.
You can contact our team for expert guidance and product recommendations based on your application.
Do you have any questions? We're happy to help!
Altaf Gadkari
Senior Application Engineer Sealing Solutions