Oil Seal RICH 390 x 430 x 20 NBR – Large Diameter Double Lip Sealing
Technical Specifications:
- Brand: RICH
- Type: Oil Seal / Shaft Seal / Sealing Ring
- Inner Diameter (d): 390 mm
- Outer Diameter (D): 430 mm
- Height (h): 20 mm
- Material: NBR (Nitrile Butadiene Rubber)
- Temperature Range: -30°C to +100°C
- Design: Double Lip with Garter Spring
- Country of Origin: China
Performance Characteristics:
- Optimized Oil Retention: The primary sealing lip is tensioned with a precision garter spring to maintain constant contact on the 390 mm shaft, even during slight axial run-outs.
- Contaminant Exclusion: The secondary auxiliary lip serves as a robust shield, preventing the ingress of environmental dust, water spray, and debris into the internal housing.
- NBR Durability: Formulated for excellent resistance to mineral oils, hydraulic fluids, and grease, making it the most cost-effective choice for standard industrial applications up to 100°C.
- Structural Integrity: The 20 mm height provides a wide contact area within the 430 mm housing, ensuring the seal remains securely seated and aligned under the mechanical stresses of large-scale equipment.
Transparency Note: This is a RICH brand product. Dimensions and technical specifications are provided for accurate part identification. Manufacturing follows strict quality control standards to ensure reliability across agricultural, hydraulic, and industrial sectors.