NSK PAU09URS Linear Guide
The NSK PAU09URS is a high-performance miniature linear guide from the PU series, engineered for precision small-scale automation and cleanroom applications. Constructed from standard martensitic stainless steel, it delivers exceptional smooth motion, low dust generation, and corrosion resistance. The resin-based ball recirculation components reduce weight by ~20% vs. conventional LU/LE models, ensuring quiet, stable movement with four-directional equal load capacity.
1. Product Overview
The NSK PAU09URS is a high-performance miniature linear guide from the PU series, engineered for precision small-scale automation and cleanroom applications. Constructed from standard martensitic stainless steel, it delivers exceptional smooth motion, low dust generation, and corrosion resistance. The resin-based ball recirculation components reduce weight by ~20% vs. conventional LU/LE models, ensuring quiet, stable movement with four-directional equal load capacity. Interchangeable rail/slider design (random matching) enables flexible assembly and fast delivery.
2. Core Official Specifications (NSK PU Series Catalog E3327E)
2.1 Dimensional Parameters (mm)
| Parameter | Value |
|---|---|
| Rail Width (W1) | 9 |
| Rail Height (H1) | 5.5 |
| Assembly Height (H) | 10 |
| Slider Width (W2) | 20 |
| Slider Length (L) | 41 |
| Slider Mounting Hole Pitch (B×C) | 20×20 |
| Slider Mounting Hole | M3×0.5×3 (depth) |
| Rail Hole Pitch (F) | 20 |
| Rail Mounting Hole | 3.5×6×4.5 |
| Standard Rail Length | 50–600 mm (customizable) |
2.2 Load & Performance Ratings
- Basic Dynamic Load Rating (C): 2,100 N
- Basic Static Load Rating (C₀): 3,500 N
- Material: Martensitic stainless steel (standard)
- Accuracy Grade: Normal (N)
- Preload: Fine clearance (T/Z0)
- Operating Temperature: -20°C to +80°C
- Slider Weight: Approx. 0.035 kg
- Max. Travel Speed: Up to 1 m/s
- Lubrication: Standard grease (LG2)
- Seal Configuration: Standard end seals (low-dust design)
3. Key Official Features
- Ultra-Smooth Motion: Optimized resin recirculation parts minimize friction fluctuation and noise.
- Lightweight & Compact: ~20% lighter than LU/LE series via resin components, ideal for space-constrained tools.
- Low Particle Generation: Reduced ball-to-wall contact lowers dust, suitable for cleanrooms (semiconductor/medical).
- Corrosion Resistance: Standard stainless steel construction for harsh or humid environments.
- Interchangeability: Rail/slider random matching (P6 Normal grade) simplifies assembly and inventory.
- Safety Design: Ball retainer prevents ball fallout when slider is detached from rail.
- Maintenance Compatibility: Supports NSK K1™ lubrication unit for long-term reliability.
4. Applications
Ideal for: Semiconductor manufacturing equipment, medical diagnostic instruments, precision measuring devices, small automation robots, optical machinery, and cleanroom assembly systems requiring miniature size, smooth motion, low dust, and corrosion resistance.
