The 40X55X7 HMS4 R seals are designed for small bore sealing applications, providing reliable performance. With an inner diameter of 40mm, outer diameter of 55mm, and a width of 7mm, these SKF seals are ideal for various industrial applications. Made from high-quality materials, they offer excellent durability and resistance to environmental factors. The HMS4 R model complies with industry standards, ensuring compatibility with hydraulic and pneumatic systems. These seals are engineered to enhance the efficiency and longevity of machinery, making them a valuable component in any operational setup.