SND OIL SEAL About
SND Oil Seal High Performance Rotary Shaft Seal | A2Z Seals
An SND Oil Seal is a precision-engineered rotary shaft sealing component designed to effectively prevent oil or grease leakage while protecting internal machine parts from dust, dirt, water, and other contaminants. Manufactured for durability and high sealing efficiency, SND oil seals are widely used across automotive, industrial, and mechanical applications.
At A2Z Seals, we supply premium-quality SND oil seals that ensure long service life, reliable performance, and reduced maintenance costs in demanding working conditions.
Key Features of SND Oil Seals
Dual-Lip Sealing System
SND oil seals are designed with a double-lip structure:
- Primary sealing lip retains lubricating oil and grease
- Secondary dust lip prevents entry of external contaminants
This ensures strong sealing performance and extended machine life.
Metal Reinforced Construction
Each seal features a high-strength metal case (skeleton design) that provides structural stability and ensures a secure fit inside the housing, even under high-speed rotation and pressure.
Garter Spring Technology
A precision garter spring is fitted on the sealing lip to maintain constant radial pressure on the shaft, ensuring consistent sealing performance and leak prevention.
Material Options for SND Oil Seals
NBR (Nitrile Rubber)
- Suitable for general-purpose oil and grease sealing
- Temperature resistance: -40C to 120C
- Excellent abrasion resistance and cost-effective performance
FKM (Viton / Fluoroelastomer)
- Ideal for high-temperature and chemical-heavy environments
- Temperature resistance: up to 240C+
- High resistance to fuels, acids, and industrial chemicals
Standard Size Format
SND oil seals follow the standard metric sizing system:
Inner Diameter Outer Diameter Thickness (mm)
Example:
20 mm 35 mm 7 mm
Correct sizing ensures proper fitting and maximum sealing efficiency.
Applications of SND Oil Seals
SND oil seals are widely used in:
- Automotive engines and transmissions
- Motorcycle crankshafts and wheel hubs
- Industrial gearboxes and pumps
- Agricultural and construction machinery
- Heavy-duty rotating equipment
How to Select the Right SND Oil Seal
To choose the correct replacement seal, always:
- Measure the exact inner diameter, outer diameter, and thickness
- Verify the OEM part number if available
- Consider operating conditions such as temperature, pressure, and lubrication type
- Choose material (NBR or FKM) based on application needs
Buy SND Oil Seals from A2Z Seals
At A2Z Seals, we offer a wide range of SND oil seals engineered for reliability, durability, and high-performance sealing in all industrial environments. Our products are designed to meet strict quality standards for both OEM and replacement applications.
Why Choose A2Z Seals?
- High-quality industrial sealing solutions
- Wide range of sizes and profiles
- Reliable performance in extreme conditions
- Competitive pricing and bulk supply options
- Trusted supplier for automotive and industrial seals
Superior Sealing Performance for Demanding ApplicationsThe SND Oil Seal delivers high reliability in sealing shafts and axles, making it ideal for both automotive and industrial machines. Thanks to its excellent resistance to hydraulic, engine, and gear oils, as well as its effective water repellency, this seal is suited to high-stress environments. Its compatibility with all vehicle types and its support for manual and automatic mechanisms provide unparalleled versatility.
Precision Construction for Longevity and SafetyEngineered with a combination of rubber and metal and produced through advanced molding techniques, the SND Oil Seal ensures a precise fit and smooth, polished finish. Its exceptional load capacity and operating temperature range of -30C to +120C, along with up to 5,000 hours of working life, guarantee long-term, trouble-free performance in your machinery.
FAQ's of SND OIL SEAL:
Q: How do I install the SND Oil Seal in automotive or industrial machinery?
A: The SND Oil Seal is designed for press-fit installation onto shafts and axles. Ensure the mounting area is clean and dry before pressing the seal into position. It is compatible with both manual and automatic mechanisms, providing simple yet effective installation for various machine types.
Q: What types of fluids is the SND Oil Seal compatible with?
A: This oil seal is engineered to perform excellently with hydraulic oil, gear oil, and engine oil. It maintains sealing integrity in applications where exposure to these fluids is common, ensuring extended operational reliability.
Q: When should I replace the SND Oil Seal in my machinery?
A: Replacement is recommended after 5,000 hours of operation or if you notice leaks, noise, or reduced sealing effectiveness. Regular inspection of seals is advised to maximize machinery life and prevent unexpected downtime.
Q: Where should I store unused SND Oil Seals to maintain their quality?
A: Store the oil seals in a cool, dry place away from direct sunlight. Proper storage conditions help sustain the seal's material properties and longevity, preserving its performance until installation.
Q: What are the manufacturing standards met by the SND Oil Seal?
A: The SND Oil Seal meets ISO/TS 16949 standards, ensuring it adheres to internationally recognized quality management guidelines for the automotive industry.
Q: How does the SND Oil Seal benefit machinery performance?
A: By providing excellent oil and good water resistance, along with corrosion protection and self-lubrication, the SND Oil Seal minimizes maintenance needs, reduces noise, and prolongs the life of your equipment, even under high load and temperature variations.