THK LBF20UUCM391.5LH LINEAR BUSH BEARING

Description:

The THK LBF20UUCM391.5LH Linear Bush Bearing is a round flange linear bushing designed to provide smooth, accurate, and low-friction linear motion when used with a 20 mm hardened LM shaft. This precision bearing features a circular flange for easy bolt-on mounting and incorporates recirculating ball elements to achieve high positioning accuracy, low running resistance, and reliable performance in compact linear motion systems. Commonly installed in factory automation equipment, packaging machinery, medical devices, semiconductor equipment, inspection systems, and light-duty industrial machines, this bearing is used by maintenance teams, OEM machine builders, and system integrators for machine repairs, retrofits, and replacement of worn linear bushings.

Applications:

The THK LBF20UUCM391.5LH is commonly used in linear slide assemblies, automated production equipment, packaging machinery, semiconductor manufacturing systems, laboratory automation, medical equipment, textile machinery, printing equipment, and precision positioning applications where smooth linear travel, compact mounting, and accurate shaft guidance are required.

Technical Specifications:

• Manufacturer Part Number (MPN): LBF20UUCM391.5LH
• Manufacturer: THK Ltd.
• Product Type: Linear Bush Bearing
• Series: LBF (Round Flange Type)
• Bearing Type: Recirculating Ball Linear Bushing
• Shaft Diameter: 20 mm
• Flange Type: Round Flange
• Mounting Style: Bolt-On Flange Mount
• Seal Type: UU (Double End Seals)
• Preload Grade: CM (Medium Preload)
• Accuracy Grade: H (High Accuracy)
• Lubrication: Grease Lubrication
• Operating Temperature: -15 °C to 80 °C
• Motion Type: Linear Rolling Motion
• Features: Low friction, smooth operation, high positioning accuracy, compact design, hardened and ground bearing surfaces, suitable for use with precision LM shafts.

Common Replacements:

• THK LBF20UU
• THK LBF20UUCM
• THK LMF20UU