Introducing the Z5 Series Lock Keyless Assembly Expansion Coupling Sleeve, engineered for heavy-duty applications in automotive, construction machinery, and rolling mills. With a robust design made from bearing steel, it offers easy installation without heating or pressurizing, high reliability with no relative motion wear, and flexibility to adapt to varying loads. Certified ISO9001 and ROHS, it's the ideal solution for efficient load transmission. Welcome to visit our website!