Thk SHW27-640L(GK) Linear Motion Guide Rail

Description:

The THK SHW27-640L(GK) Rail is a 640 mm precision wide-profile linear guide rail designed for use with SHW27 series caged ball linear motion blocks. It provides high rigidity, excellent moment load capacity, and smooth, accurate linear travel for demanding industrial automation and precision machinery. Commonly installed in CNC machine tools, semiconductor manufacturing equipment, industrial robots, automated assembly systems, packaging machinery, and precision inspection equipment. Maintenance teams and system integrators use this rail for machine repair, OEM replacement, retrofit projects, and the construction of high-performance linear motion systems.

Applications:

The THK SHW27-640L(GK) rail is engineered for precision linear motion systems requiring high load capacity, superior moment rigidity, and stable single-rail operation. Its wide, low-profile design makes it ideal for machine tools, electronics manufacturing, material handling equipment, medical devices, vision systems, and factory automation applications where precise positioning and long service life are essential.

Technical Specifications:

• Manufacturer: THK
• Manufacturer Part Number: SHW27-640L(GK)
• Product Type: Linear Motion Guide Rail
• Series: SHW Wide-Rail Caged Ball LM Guide (GK Series)
• Compatible Bearing Blocks: SHW27CA, SHW27CR
• Rail Size: 27 mm
• Rail Length: 640 mm
• Rail Width: 27 mm
• Guide Type: Wide-Rail, Low-Profile LM Guide Rail
• Standard Rail Length: 640 mm
• Standard Hole Pitch (F): 60 mm
• End Distance (G): 20 mm
• Maximum Standard Rail Length: 3000 mm (model dependent)
• Material: Hardened Bearing Steel
• Mounting Style: Counterbored Bolt Mounting
• Surface Hardness: Approximately 58–64 HRC
• Lubrication Compatibility: Grease or Oil Lubrication
• Compatible Lubrication System: THK QZ Lubricator
• Corrosion Protection: Optional surface treatments available
• Features: Wide rail construction, four-way equal load capability, high moment rigidity, low-profile design, high positioning accuracy, smooth low-friction travel, long service life, and compatibility with SHW27 caged ball carriage blocks.

Common Replacements:

• THK SHW27-820L(GK) Rail
• THK SHW27-460L(GK) Rail
• THK HRW27-640L(GK) Rail