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38x55x8 NBR CR Standard Rotary Shaft Seal (Oil Seal) - Metric Single Lip

3.26 3.26

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Marca: CR
Product Category: Oil Seal

Product Details

38x55x8 NBR CR Standard Rotary Shaft Seal (Oil Seal) - Metric Single Lip

This premium 38x55x8 rotary shaft seal (oil seal) is engineered to CR/SKF specifications, providing reliable sealing for dynamic applications. Constructed from durable Nitrile Butadiene Rubber (NBR), this seal features a spring-loaded primary sealing lip designed to retain critical lubrication, such as oil and grease, while effectively excluding external contaminants like dirt and moisture. The 8mm thickness ensures a tight fit in standard metric bores (55mm) when paired with a 38mm shaft. NBR material offers excellent temperature resistance (up to 100°C / 212°F) and outstanding compatibility with mineral oils and petroleum-based fluids, making it the industry standard for general-purpose sealing requirements. Ideal for use in gearboxes, electric motors, pump systems, and industrial transmissions, this 38X55X8 seal ensures minimal leakage and extended operational lifespan for critical machinery. As a Senior Product Manager, I recommend this seal for high-duty cycle environments where consistency and reliable contamination exclusion are paramount. It serves as a direct, high-quality replacement for seals manufactured by SKF, Freudenberg (CFW), and National, ensuring seamless maintenance integration without compromising performance. Optimize your preventive maintenance schedule with seals built to withstand demanding industrial pressures and rotational speeds.

Key Features

  • Constructed using highly durable NBR compound for excellent resistance to aging and mineral oil.
  • Precision-engineered spring-loaded lip maintains constant contact pressure on the shaft, optimizing sealing effectiveness.
  • Designed to CR/SKF industry standards for interchangeability and guaranteed fitment in industrial applications.
  • Suitable for general industrial machinery, including gearboxes, motors, and hydraulic pumps.
  • Effective contamination exclusion capability protects bearings and prolongs equipment lifespan.

Technical Specifications

d38 mm
D55 mm
B8 mm
Product_TypeRotary Shaft Seal (Oil Seal)
MaterialNitrile Butadiene Rubber (NBR)
Temperature_Range-30°C to 100°C (-22°F to 212°F)
Design_StyleSingle Lip with Spring (Type R23/WA Standard)
Pressure_RatingUp to 0.05 MPa (7.25 PSI)
Brand_StandardCR / SKF Equivalent