THK HRW21-CA Linear Carriage And Guide Rail Assembly

Description:

The THK HRW21-CA Linear Carriage and Guide Rail is a precision wide-rail linear motion assembly consisting of an HRW21CA bearing block mounted on a 280 mm guide rail, providing smooth, rigid, and accurate linear travel for industrial automation equipment. Commonly installed in CNC machine tools, semiconductor equipment, packaging machinery, industrial robots, and precision inspection systems where compact, high-rigidity linear guidance is required. Maintenance teams, OEM machine builders, and system integrators use this linear guide assembly for machine repairs, automation retrofits, replacement of worn guide systems, and precision motion upgrades.

Applications:

The THK HRW21-CA Linear Carriage and Guide Rail is widely used in CNC machining centers, pick-and-place systems, semiconductor manufacturing equipment, laboratory automation, medical devices, packaging machinery, vision inspection equipment, and factory automation applications requiring a compact, low-profile linear guide with high rigidity and a 280 mm travel length.

Technical Specifications:

• Manufacturer: THK Ltd.
• Model: HRW21-CA
• Product Type: Linear Carriage and Guide Rail Assembly
• Series: HRW Wide-Rail LM Guide
• Bearing Block Type: HRW21CA Flanged LM Block
• Guide Type: Ball-Type Wide-Rail Linear Motion Guide
• Rail Length: 280 mm
• Rail Width: 37 mm
• Rail Mounting: Bolt Fixed Through-Hole Mounting
• Mounting Orientation: Top or Bottom Mounting
• Load Direction: Four-Way Equal Load
• Lubrication: Grease or Oil Lubrication Compatible
• Standard Seal: UU Double End Seal
• Operating Temperature: -20°C to 80°C
• Material: Hardened Bearing Steel with Precision Ground Raceways
• Features: Low-profile design, high rigidity, self-aligning capability, smooth operation, and high positioning accuracy
• Typical Applications: CNC machinery, robotics, semiconductor equipment, medical devices, packaging systems, and industrial automation.

Common Replacements:

• THK HRW21CAM Linear Guide Assembly
• THK HRW21CR Linear Guide Assembly
• THK HRW21CRM Linear Guide Assembly