Thk HRW21CA1UU(GK) Linear Rail Guide Carriage Block Bearing Module HRW-21CA

Description:

The THK HRW21CA1UU(GK) Linear Rail Guide Carriage Block Bearing Module is a precision wide-rail linear motion bearing block designed for use with THK HRW21 guide rails, providing smooth, rigid, and accurate linear movement in industrial automation systems. Commonly installed in CNC machine tools, semiconductor equipment, packaging machinery, industrial robots, medical devices, and precision inspection systems requiring compact, high-load linear guidance. Maintenance teams, OEM machine builders, and system integrators use this carriage block for machine repairs, replacement of worn linear bearings, automation retrofits, and precision motion system upgrades.

Applications:

The THK HRW21CA1UU(GK) Linear Guide Carriage Block is widely used in CNC machining centers, robotic positioning systems, semiconductor manufacturing equipment, pick-and-place machines, automated assembly lines, packaging machinery, laboratory automation, and factory automation applications where a compact, high-rigidity linear guide block with four-way equal load capability is required.

Technical Specifications:

• Manufacturer: THK Ltd.
• Manufacturer Part Number (MPN): HRW21CA1UU(GK)
• Brand: THK
• Product Type: Linear Rail Guide Carriage Block (LM Block)
• Series: HRW
• Model: HRW21CA1UU(GK)
• Compatible Rail Size: HRW21 (21 mm)
• Guide Type: Wide-Rail Recirculating Ball Linear Guide
• Block Type: CA Flanged Carriage Block
• Seal Type: UU (Double End Seals)
• Grease Option: GK Factory Grease Specification
• Carriage Height: 21 mm
• Carriage Width: 68 mm
• Carriage Length: 58.8 mm
• Dynamic Load Rating: 8.02 kN
• Static Load Rating: 12.9 kN
• Weight: Approximately 0.25 kg
• Mounting Style: Top or Bottom Mounting via Flanged Block
• Operating Temperature: -20°C to 80°C
• Material: Hardened Bearing Steel
• Features: Four-way equal load design, high rigidity, smooth operation, low friction, and high positioning accuracy.

Common Replacements:

• THK HRW21CAMUU(GK)
• THK HRW21CRUU(GK)
• THK HRW21CRMUU(GK)