1. Product Overview The THK HSR20A1ZZ(GK) Linear Guide Block features a four-row ball circulation design, providing high rigidity, smooth linear movement, and excellent load capacity in four directions. Designed for high-precision positioning and reliable performance in CNC machines, industrial automation, and precision machinery. 👉 Get a quote within 24 hours for your project 2. Key Advantages High rigidity and four-direction load capacity. Smooth and low-friction linear