THK LM80 LINEAR BALL BEARING (LINEAR BUSHING) ECB20

Description:

The THK LM80 Linear Ball Bearing is a precision linear bushing designed to provide smooth, low-friction linear motion on an 80 mm hardened shaft. It utilizes recirculating steel balls to achieve high load capacity, accurate guidance, and long service life in demanding industrial applications. Commonly installed in machine tools, factory automation equipment, semiconductor machinery, packaging systems, and material handling equipment. Maintenance teams and system integrators use this linear ball bearing for equipment repair, replacement, and new machine construction.

Applications:

The THK LM80 belongs to the THK LM Series of cylindrical linear ball bearings. It is designed for use with an 80 mm precision LM shaft, allowing smooth and precise linear motion with minimal rolling resistance. The linear bushing is suitable for applications requiring high positioning accuracy, quiet operation, and reliable performance under continuous reciprocating motion. The marking "ECB20" is not a standard THK model suffix and appears to be an internal inventory, customer-specific, or production identification code. THK does not publicly document the meaning of this code, so it should not be interpreted without the original engineering documentation.

Technical Specifications:

• Brand: THK
• Part Number: LM80
• Additional Marking: ECB20 (not publicly documented by THK)
• Product Type: Linear Ball Bearing (Linear Bushing)
• Series: LM
• Shaft Diameter (dr): 80 mm
• Outside Diameter (D): 120 mm
• Overall Length (L): 140 mm
• Bearing Type: Cylindrical Recirculating Ball Linear Bearing
• Basic Dynamic Load Rating (C): 7,350 N
• Basic Static Load Rating (C₀): 16,000 N
• Compatible Shaft: THK Precision LM Shaft, 80 mm diameter
• Lubrication: Grease or oil lubrication
• Material: Bearing steel with hardened raceways
• Motion Type: Linear reciprocating motion
• Features: Low friction, high load capacity, smooth linear travel, compact cylindrical design, high rigidity, and long service life.

Common Replacements:

• THK LM80GA Linear Ball Bearing
• THK LM80OP Linear Ball Bearing
• THK LM80AJ Linear Ball Bearing