Description

Linear Bush LM 40

ISeal type=Contact seal on both sides

Standard Model is a device used for linear motion, featuring the following key characteristics:

📐 Key Specifications

• Inner Diameter (d): 40 mm

• Outer Diameter (D): 60 mm

• Length (L): 80 mm (approx. width ~60.5 mm depending on design)

• Load Rating:

  • Dynamic (C): ≈ 2,160 N

  • Static (C₀): ≈ 4,020 N

• Ball Circuit Structure: 6 rows with polymer retainer

• Seals: Double rubber seals (UU) for dust and moisture protection

• Weight: Approximately 0.585 kg

• Material: Bearing housing made from chrome steel (GCr15/SUJ2); retainer made from polymer

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🏭 Typical Applications

• CNC systems, 3D printers, DIY robotics, and automation equipment

• Suitable for slide tables, measuring instruments, and linear motion systems requiring low friction and high accuracy

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🔧 Features of the THK LM Series

• Designed for high-precision linear motion

• Polymer retainer reduces noise and friction

• Double-sealed ends (UU) provide contamination protection

• Available variants include: open type (OP), clearance-adjustable (AJ), long type (L), and flange type

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✅ When to Use LM40UU

• Ideal for 40 mm shaft diameter and medium-to-light load linear motion

• Handles approximately 2.16 kN of dynamic load

• Compact design suitable for limited-space applications

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⚠️ Installation & Maintenance Tips

• Align straight when mounting to avoid damaging the ball retainer

• Use multiple bushings spaced appropriately for applications involving moment loads

• Not intended for rotational motion

• Avoid impact or excessive force during installation

• Use recommended lubricants (e.g., lithium-based grease, grade 2) for optimal performance