Oil Seal China Supplier - Famous Factories, Trusted OEM Quality
From day one, I’ve been supplying high-performance oil seals as an oil seal China supplier. I know how important uptime is for machinery, so I offer a wide range of sizes, materials (NBR, FKM, silicone, PTFE), and lip designs to fit hydraulic pumps, gearboxes, and engines. For Famous customers and Factories alike, I provide OEM/ODM options, rapid lead times, and strict QA from material to finished seals. I keep stock of standard sizes and can customize to drawings, with anti-counterfeit traceability. Our factory network ensures consistent quality and competitive pricing, with documentation like RoHS, REACH, and certificates. I pride myself on straight talk, fast replies, and no-nonsense logistics—consolidated shipments, safe packaging, and reliable after-sales support. If you seek a dependable partner in oil seals, I’m here to help you reduce downtime and optimize your supply chain with proven China-sourced quality.
oil seal China supplier Trusted by Pros Manufacturers You Can Rely On
Oil seals are essential to the reliability of pumps, gears, and hydraulic systems across industries. A capable supplier offers a full range of materials and profiles—NBR, EPDM, FKM, silicone, and PTFE—so seals withstand temperature shifts, chemicals, and wear. Standard sizes plus custom molded or machined seals help meet exact specifications and extend service life. Global buyers value a China-based partner with proven quality systems, traceability from raw material to finished parts, and in‑house testing for fit, leakage, and durability. Scalable production, flexible batch sizes, and efficient logistics deliver consistent lead times, reliable stock, and competitive pricing without sacrificing quality. Choosing a trusted supplier means prioritizing precise tolerances, clear documentation, and strong after‑sales support. Transparent sample programs, collaborative engineering, and risk management help keep equipment running smoothly worldwide, with stable supply chains you can depend on.
| Product Family | Typical Materials | Temperature Range | Shore Hardness (Shore A) | Lip Configuration | Typical Shaft Dia Range (mm) | Recommended Shaft Surface Finish (Ra µm) | Recommended Shaft Hardness (HRC) | Media Compatibility | Applicable Standards / Certifications | Typical Manufacturing Methods | Typical Production Lead Time |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Single-Lip Radial Shaft Seals (Standard) | NBR (Nitrile); HNBR (for higher temps); optional FKM compounds | NBR: -30°C to +100°C; HNBR: -40°C to +150°C | 70 ± 5 | Single hydrodynamic lip with garter spring | 3 – 200 | 0.20 – 0.80 | 50 – 60 | Mineral oils, engine oils, lubricants | ISO 6194; DIN 3760; ISO 9001; IATF 16949 (automotive applications) | Injection molding; metal case stamping; assembly with garter spring | 2–5 weeks |
| Double-Lip (Oil + Dust) | NBR; HNBR; FKM for aggressive environments | -40°C to +150°C (depending on compound) | 75 ± 5 | Primary oil lip + secondary dust lip | 6 – 300 | 0.20 – 0.60 | 55 – 62 | Lubricants, light contamination, water splashes, dust | ISO 6194; DIN 3760; ISO 9001 | Compression molding; assembly with garter spring; metal case forming | 3–6 weeks |
| PTFE-Lined (Low Friction) | PTFE liner bonded to NBR/HNBR or FKM elastomer | PTFE: -200°C to +260°C (practical assembly range depends on elastomer) | Elastomer: 70–90 (PTFE not specified in Shore A) | Single low-friction PTFE lip (optionally metal-supported) | 4 – 150 | 0.05 – 0.30 (very fine finish preferred) | 55 – 63 | Aggressive fluids, steam, synthetic oils, some chemicals | ISO 6194; ISO 9001; material traceability for critical applications | Precision machining, bonding, specialty molding | 4–8 weeks |
| Spring-Energized Seals (High Pressure / High Temp) | PTFE variants (filled/unfilled); graphite-filled PTFE; metal springs | -100°C to +250°C (depending on filler and spring material) | Not applicable to PTFE (elastomer backup typically 70–90) | Spring-energized sealing lip for high pressure contact | 10 – 500 | 0.05 – 0.40 | 55 – 62 | Hydraulic fluids, gases, high-pressure oils, steam (select grades) | ISO 6194; API 682 (where applicable for rotating equipment); ISO 9001 | Precision machining, assembly of spring and lip, custom engineering | 4–10 weeks |
| Hydraulic Rod & Piston Seals | Polyurethane (PU); HNBR; PTFE composite seals | PU: -30°C to +120°C; HNBR: -40°C to +150°C | PU: 85–95 | Rod and piston specific profiles (U-cups, V-rings, backup rings) | 8 – 400 | 0.05 – 0.40 | 45 – 60 | Hydraulic oils, water-glycol fluids, some bio-based fluids | ISO 9001; IATF 16949 (for automotive/hydraulic system suppliers) | Molding (injection/compression); machining for backup rings; assembly | 3–7 weeks |
| High-Temperature / Steam Seals | Graphite/PTFE blends; FKM; high-temp elastomers | -20°C to +250°C (material dependent); PTFE variants to +260°C | Elastomer: 75–90 (graphite/PTFE measured differently) | Special high-temp profiles; optional metal case | 5 – 250 | 0.05 – 0.40 | 55 – 62 | Hot oils, steam, high-temp lubricants, some corrosive media (select grades) | ISO 9001; material traceability for critical industries | Compression/injection molding; bonding; precision machining | 3–8 weeks |
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