Professional 55x80x10 NBR Rotary Shaft Seal | Metric Industrial Oil Seal CR Standard Equivalent

Our robust 55x80x10 rotary shaft seal, manufactured to stringent industrial standards, provides essential containment for lubricants and exclusion of external contaminants (dirt, dust, moisture). This common metric size features a single, spring-loaded primary sealing lip housed within a precision metal casing. Constructed from high-grade Nitrile Butadiene Rubber (NBR), this seal is optimized for operating temperatures ranging from -30°C to 100°C, offering excellent resistance to petroleum-based oils, hydraulic fluids, and grease. The precise dimensions (55mm shaft diameter, 80mm bore diameter, 10mm width) ensure optimal interference fit and reliable static sealing in medium-pressure applications, maintaining operational integrity under standard radial load conditions. Selecting this 55x80x10 oil seal minimizes machine downtime and extends the operational lifespan of critical equipment, including gearboxes, pumps, motors, and industrial transmission systems. Engineered as a direct replacement for CR (Chicago Rawhide) and other major industrial seal manufacturers, this component guarantees dimensional interchangeability and consistent performance reliability. We focus on delivering superior material stability and lip design geometry to effectively manage shaft misalignment and runout, thus reducing friction and power loss. This cost-effective sealing solution is ideal for high-volume maintenance, repair, and overhaul (MRO) operations demanding uncompromising fluid retention.

Key Features

• High-grade NBR compound provides chemical resistance to most standard industrial oils and greases.
• Spring-loaded primary lip ensures constant sealing force against the shaft surface, compensating for wear and runout.
• Durable metal case construction provides rigidity and reliable static sealing in the bore.
• Designed for reliable fluid retention and effective exclusion of abrasive external contaminants.
• Direct interchangeability with major OEM and aftermarket suppliers (CR, SKF, Timken standards).

Technical Specifications