CR Services CR4931 Oil Seal

The CR Services CR4931 is a high-quality radial shaft seal designed for industrial applications, providing reliable sealing against lubricants, fluids, and contaminants. Manufactured by CR Services, an SKF company, this oil seal features a single lip with a spring-loaded design (CRW1 style) made from durable Nitrile Butadiene Rubber (NBR) material, ensuring excellent resistance to oils, greases, and moderate temperatures. It is commonly used in automotive, agricultural, and manufacturing equipment to prevent leaks and protect rotating shafts from dirt and moisture. Key benefits include easy installation, long service life, and cost-effectiveness compared to similar seals from competitors like Garlock or Timken, which may offer less flexibility in material options. Drawbacks can include limited compatibility with extreme temperatures or aggressive chemicals, where fluoroelastomer alternatives might be preferred. This seal excels in moderate-duty environments, offering superior wear resistance and low friction for efficient operation. Its compact size makes it ideal for space-constrained assemblies, and it supports shaft speeds up to 3,000 feet per minute. Overall, the CR4931 provides a balance of performance and affordability, making it a go-to choice for maintenance and replacement in pumps, gearboxes, and motors.