Archive for April 22nd, 2025

How Many Types of Hydraulic Seals Are There? Hydraulic seals are critical components in fluid power systems, designed to prevent leakage and ensure efficient operation. While classifications may vary slightly across industries, hydraulic seals are broadly categorized by motion type, design/function, material, and application. This article provides a comprehensive breakdown of these categories and answers […]

What is a DAs Seal? A DAs seal (also written as D‑A‑S, DA‑S, or DAs) is a compact, double-acting piston seal assembly designed for hydraulic systems. Combining sealing, guidance, and backup functions into a single unit, it ensures reliable bidirectional sealing under high-pressure conditions. This guide explores its construction, materials, applications, and advantages, providing a […]

What Is an Oil Seal Ring? An oil seal ring (also called a shaft seal, radial lip seal, or grease seal) is a precision-engineered mechanical device critical to machinery operation. It prevents lubricants like oil or grease from leaking out of rotating or reciprocating shafts while simultaneously blocking contaminants such as dirt, dust, and water […]