THK HSR-25 High Rigidity Ball Type Linear Guide Rail

Description:

The THK HSR-25 Linear Guide Standard Ball Profile Rail is a precision LM Guide designed to deliver smooth, high-rigidity linear motion with four-way equal load capability for demanding industrial applications. Commonly installed in CNC machine tools, factory automation equipment, robotics, semiconductor manufacturing systems, packaging machinery, and precision inspection equipment. Machine builders, maintenance technicians, and automation integrators use the HSR25 Series for new machine construction, retrofits, repairs, and replacement of worn linear guide systems requiring accurate, low-friction linear motion.

Applications:

The THK HSR25 Series is part of THK's Global Standard Full-Ball LM Guide family. Each row of balls is arranged at a 45° contact angle, providing equal load ratings in radial, reverse radial, and lateral directions, allowing installation in virtually any orientation. The HSR25 guide offers high rigidity, excellent self-aligning capability, and stable high-precision movement while maintaining a low coefficient of friction. Its robust profile makes it ideal for machining centers, automated assembly equipment, medical devices, material handling systems, and other precision linear motion applications.

Technical Specifications:

• Brand: THK
• Product Type: Precision LM Guide Linear Rail
• Series: HSR25 Global Standard Series
• Guide Size: 25 mm
• Rail Width: 23 mm
• Rail Material: Hardened Alloy Steel
• Ball Type: Full Ball Recirculating Linear Bearing
• Contact Angle: 45°
• Load Direction: Four-Way Equal Load (Radial, Reverse Radial, Lateral)
• Accuracy: High Precision Ground Raceways
• Mounting Style: Top Mount (Standard) with optional bottom-tapped rail versions available
• Rail Mounting Hole Thread: M6 (standard tapped rail option)
• Effective Tap Depth: 12 mm (tapped rail version)
• Standard Rail Lengths: Available in multiple lengths up to 2,440 mm standard; longer joined rails available upon request
• Maximum Standard Rail Length: Up to 3,000 mm (depending on accuracy grade)
• Construction: Four-row circular arc groove with recirculating ball design
• Features: High rigidity, low friction, self-adjusting capability, excellent positioning accuracy, heavy load capacity, smooth operation, interchangeable rail and block configurations, suitable for installation in any orientation.

Common Replacements:

• THK HSR20 Series
• THK HSR30 Series
• THK SHS25 Series