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20x45x7 NBR Radial Shaft Seal | CR Standard Industrial Oil Seal | High-Performance Bearing Protection

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Marca: CR
Product Category: Oil Seal

Product Details

20x45x7 NBR Radial Shaft Seal | CR Standard Industrial Oil Seal | High-Performance Bearing Protection

The 20X45X7 Radial Shaft Seal (Oil Seal), designed to the rigorous standards of CR-type quality, is an essential component for protecting sensitive industrial bearings and optimizing system longevity. Featuring a robust Nitrile Butadiene Rubber (NBR) lip material and an integral garter spring, this seal provides exceptional containment of lubricants while effectively barring external contaminants such as dust, dirt, and moisture. Engineered for precision fit, the 20mm inner diameter and 45mm outer diameter configuration ensures a secure interface on standard industrial shafts and housings. With a standard operating temperature range of -30°C to +100°C, this seal is the reliable choice for medium-duty industrial applications requiring consistent performance under dynamic operating conditions, significantly reducing the risk of premature bearing failure due to fluid loss or ingress. Investing in high-quality sealing technology translates directly to reduced Total Cost of Ownership (TCO) and maximized operational uptime. As a Senior Product Manager, we recommend this seal for critical applications including gearboxes, pumps, electric motors, and heavy-duty axles where maintenance access is limited and reliable performance is paramount. Its superior abrasion resistance and chemical compatibility with common industrial oils and greases ensure extended maintenance intervals and sustained machinery health. Choose the 20X45X7 seal to secure your system's lubrication integrity and maintain peak operational efficiency.

Key Features

  • High-Performance NBR Material: Provides excellent resistance to oils, hydraulic fluids, and common industrial lubricants.
  • Integrated Garter Spring: Ensures constant, uniform radial load on the shaft surface for optimal sealing effectiveness.
  • Enhanced Contaminant Exclusion: Dual-action lip design effectively blocks dust, dirt, and water ingress.
  • Extended Equipment Lifespan: Prevents lubricant leakage, dramatically reducing friction and premature bearing failure.
  • Precision Manufacturing: Adherence to strict dimensional tolerances for simplified installation and reliable industrial service.

Technical Specifications

d20 mm
D45 mm
B7 mm
TypeRadial Shaft Seal (Oil Seal)
Lip_MaterialNitrile Butadiene Rubber (NBR)
Spring_MaterialCarbon Steel (Standard)
Temperature_Range-30°C to +100°C
Pressure_Max0.03 MPa (0.43 PSI) for general sealing
Shaft_Speed_Max10 m/s (Application Dependent)