1. Product Introduction
TC oil seal is a double-lip, spring-loaded, fully rubber-covered radial shaft seal (compliant with ISO 6194 / GB/T 13871). It is the most widely used
rotary sealing component in the global market, responsible for
retaining lubricating oil/grease and preventing the intrusion of
dust, water, mud and other contaminants. This NBR-based standard TC
seal is designed for medium working conditions, with excellent
cost-performance, stable quality and wide compatibility, suitable
for mass OEM supply and global aftermarket replacement. 2. Structural Features
Full rubber-coated metal skeleton: High-strength carbon steel insert, fully wrapped by rubber, no
metal exposure, anti-corrosion, stable outer diameter interference
fit, no damage to the housing bore. - Double lip design: Main sealing lip + auxiliary dust lip, forming a labyrinth
effect, effectively isolating internal oil and external dirt.
- Self-tightening garter spring: Provides continuous radial pressure, adapts to shaft eccentricity
and wear, maintains long-term sealing performance.
- Precision lip geometry: Optimized lip angle to form a stable micro oil film, reduce
friction heat and wear, extend service life.
- Standard installation size: Fully compatible with international standard bore and shaft fits
(H7/h6), easy press-fit installation.
3. Material Parameter Table
| Item | Specification |
|---|
| Rubber Material | NBR (Acrylonitrile-Butadiene Rubber) | | Hardness | 70±5 Shore A | | Operating Temperature | -40°C ~ +120°C (continuous) | | Max. Surface Speed | ≤15 m/s | | Working Pressure | Dynamic ≤0.03 MPa | | Shaft Fit Roughness | Ra 0.2~0.4 μm | | Compatible Media | Mineral oil, engine oil, gear oil, grease, diesel | | Compression Set | ≤20% (120°C × 22h) |
4. Performance Advantages
- Cost-effective & globally recognized: Low comprehensive cost, stable supply chain, suitable for
large-scale procurement in Europe, America, Southeast Asia, Middle
East and Africa.
- Good oil resistance: Stable performance in common mineral oil systems, no swelling, no
hardening, no cracking.
- Strong anti-pollution ability: Double lip structure effectively blocks dust and water, suitable
for outdoor machinery and vehicles.
- Low friction & low heat: Stable oil film reduces heat generation, avoids early failure
caused by high temperature.
- Wide dimensional range: Shaft diameter φ6~φ200mm, width 4~15mm, can meet most general
sealing needs.
5. Application Fields
- Automotive: Crankshaft front/rear seal, camshaft seal, gearbox input/output
shaft seal, wheel hub, differential.
- General industrial: Electric motor, fan, water pump, air blower, agricultural
machinery, small hydraulic equipment.
- Aftermarket: Universal replacement parts for light and medium-duty equipment
worldwide.
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