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Apr 10 2025
Do You Know the Functions of Oil Seals and Sealing Rings?
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Discover the critical differences between oil seals and hydraulic seals. Learn how Guangzhou Jiarui Oil Seal Co., Ltd provides tailored sealing solutions to optimize industrial performance.
In industrial machinery, selecting the right seal can prevent up to 40% of equipment failures. At Guangzhou Jiarui Oil Seal Co., Ltd, we specialize in manufacturing high-performance oil seals and hydraulic seal repair kits for global clients. This guide breaks down the key distinctions between oil seals and hydraulic seals, empowering engineers to make informed decisions.
Oil Seals (Shaft Seals)
Primary Role: Prevent lubricant leakage in rotating shafts while excluding contaminants.
Hydraulic Seals
Primary Role: Manage high-pressure fluid transfer in dynamic systems.
Our Solution: Explore our Custom Hydraulic Seal Oil Seal Kits for precision-fit sealing.
Parameter: Oil Seals, Hydraulic Seals
Temperature Range: -40°C to 120°C, -50°C to 200°C
Pressure Capacity: ≤0.5 MPa, 10–50 MPa
Common Materials: NBR, FKM, ACM; PU, PTFE, FFKM composites
Expert Insight:
Our lab tests show that PTFE-reinforced hydraulic seals improve extrusion resistance by 30% compared to standard designs.
Oil Seal Design Features:
✔ Spring-loaded lip for consistent radial force
✔ Dual-lip configuration (sealing + dust exclusion)
✔ Optimized for rotational motion
Hydraulic Seal Systems:
✔ Multi-component design (guide rings, primary seals, wipers)
✔ Pressure-adaptive groove engineering
✔ Bidirectional pressure handling
Top Oil Seal Failure Causes:
Shaft surface roughness > 0.8 µm Ra
Lubricant incompatibility
Axial misalignment > 0.5 mm
Hydraulic Seal Failure Triggers:
Pressure spikes exceeding 150% rating
Fluid contamination (NAS > 8)
Rod surface hardness < HRC 45
Jiarui Pro Tip: Our engineers have helped 3000+ clients reduce unplanned downtime by 60% through predictive seal diagnostics.
Answer these questions:
Operating pressure > 5 MPa?
→ Yes: Choose hydraulic seals
→ No: Opt for oil seals
Reciprocating + rotational motion?
→ Yes: Use multi-action hydraulic seals
→ No: Standard oil seals may suffice
Exposure to abrasive particles?
→ Yes: Integrate advanced wipers or scraper seals
Why Choose Guangzhou Jiarui Oil Seal Co., Ltd?
✅ 20000+ Hydraulic Seal Kits – From standard to extreme-pressure designs
✅ 5 Million Cycle Test Certified – Guaranteed durability for heavy machinery
✅ Full Custom Service – Rapid prototyping for urgent requirements
✅ Full Lifecycle Support – Installation guidance to failure analysis
A mining equipment and excavator user extended hydraulic cylinder service intervals from 800 to 2,500 hours using our Hydraulic Repair Kits.
Ready to Optimize Your Sealing Systems?
Contact us explore our Industrial Sealing Solutions catalog.
WhatsApp: 8613360591449
Email: chiuchiu@jrsealing.com
WhatsApp: 8613026895525
Email: ning@jrsealing.com
