The SKF 21X40X7 HMSA10 RG Small Bore Seal (SSSB) is designed for precision sealing in compact spaces. This seal features a robust construction that provides excellent resistance to contaminants and wear, ensuring longevity in operation. With dimensions of 21mm inner diameter, 40mm outer diameter, and 7mm thickness, it fits a variety of small bore applications. The seal is compliant with industry standards, making it suitable for use in hydraulic and pneumatic systems. Its reliable performance makes it an essential component for maintaining system integrity.