Introducing the Top Ranking Z9 Expansion Sleeve Shaft Locking Device Assembly, designed for diameters from 200 to 420mm. Engineered for heavy-duty applications in automotive, construction, and rolling mills, it features high-strength bearing steel, ISO9001 certification, and easy installation without heating equipment. This reliable, anti-rust device ensures safety while offering exceptional load adaptability and longevity. Explore more at our website!