THK LBST40-4 LINEAR BALL BUSHING BEARING

Description:

The THK LBST40-4 Linear Ball Bushing Bearing is a precision linear motion bearing designed to provide smooth, low-friction linear travel on a compatible hardened shaft while maintaining high load capacity and positioning accuracy. Featuring a 40 mm nominal shaft diameter, the LBST40-4 incorporates recirculating ball technology to deliver reliable performance, long service life, and minimal running resistance in demanding industrial automation systems. Commonly installed in machine tools, packaging machinery, semiconductor equipment, industrial robots, automated assembly systems, and material handling equipment, this bearing is used by maintenance teams, OEM machine builders, and system integrators for equipment repairs, retrofits, and replacement of worn linear bushings.

Applications:

The THK LBST40-4 is commonly used in CNC machinery, automated manufacturing systems, industrial robots, semiconductor processing equipment, packaging machines, medical equipment, inspection systems, material handling equipment, and precision positioning applications requiring accurate, low-friction linear motion on hardened LM shafts.

Technical Specifications:

• Manufacturer Part Number (MPN): LBST40-4
• Manufacturer: THK Ltd.
• Product Type: Linear Ball Bushing Bearing
• Series: LBST Series
• Bearing Type: Recirculating Ball Linear Bearing
• Nominal Shaft Diameter: 40 mm
• Motion Type: Precision Linear Motion
• Compatible Shaft: Hardened and Ground LM Shaft
• Bearing Design: Cylindrical Linear Ball Bushing
• Rolling Element: Recirculating Steel Balls
• Low Friction Rolling Contact
• High Positioning Accuracy
• High Load Capacity
• Heat-Treated Bearing Steel Construction
• Grease or Oil Lubrication Compatible
• Suitable for High-Speed Linear Motion
• Designed for Industrial Automation and Precision Motion Systems

Common Replacements:

• THK LM40UU
• THK LM40LUU
• THK LME40UU