NSK Linear Guide LAW50EL
The NSK LAW50EL is a high-performance, wide-profile linear guide featuring a flanged-type slide block designed for single-rail applications requiring exceptional moment rigidity and low-profile installation. Engineered with NSK's advanced offset Gothic arch ball groove technology (50° contact angle), it delivers superior vertical load capacity and impact resistance.
1. Product Overview
The NSK LAW50EL is a high-performance, wide-profile linear guide featuring a flanged-type slide block designed for single-rail applications requiring exceptional moment rigidity and low-profile installation. Engineered with NSK's advanced offset Gothic arch ball groove technology (50° contact angle), it delivers superior vertical load capacity and impact resistance. The wide rail design enables high stability against rolling moment loads, making it ideal for compact, single-rail linear motion systems.
2. Key Dimensions (mm, Official)
| Parameter | Value |
|---|---|
| Rail Width (W1) | 90 |
| Rail Height (H1) | 24 |
| Assembly Height (H) | 50 |
| Slide Block Length (L) | 140.6 |
| Slide Block Width (W) | 162 |
| Slide Mounting Holes | M10×1.5×18 |
| Slide Hole Pitch (L1×W1) | 144×80 |
| Rail Mounting Hole Pitch | 80 |
| Rail Mounting Hole Size | 9×14×12 |
| Lubrication Port | PT 1/8 |
| Approx. Slide Weight | 4.0 kg |
3. Load Ratings (N, Official)
| Rating Type | Value |
|---|---|
| Basic Dynamic Load Rating (C100, 100km) | 48,400 |
| Basic Dynamic Load Rating (C50, 50km) | 61,500 |
| Basic Static Load Rating (C₀) | 93,500 |
| Basic Static Moment (My₀) | 1,530 N·m |
| Basic Static Moment (Mr₀) | 3,900 N·m |
4. Performance Specifications (Official)
- Preload Options:
- Z0 (ZT): Fine Clearance (0–3 μm)
- Z1 (ZZ): Slight Preload (Standard)
- Z3 (ZH): Medium Preload (High Rigidity)
- Max. Allowable Speed: 150 m/min (2.5 m/s)
- Operating Temperature: -10°C to +80°C
- Accuracy Grades: PN (Normal), P6, P5, P4, P3
- Material: High-Carbon Chromium Steel (Standard)
- Standard Protection: Dual End Seals + Side Seals + Bottom Seals
- Lubrication: Compatible with NSK K1-L™ Maintenance-Free Unit (Optional)
- Ball Retention: Balls secured in retainer; no fallout when slide is removed
5. Core Features & Benefits (Official)
- Single-Rail Optimized: Wide rail design provides exceptional moment rigidity, perfect for compact single-rail setups.
- 50° Contact Angle: Delivers four-way equal load capacity with enhanced vertical load and rigidity.
- Offset Gothic Arch Grooves: Four-row ball configuration withstands heavy impacts and high loads.
- Low-Profile Design: Ideal for space-constrained installations requiring wide stability.
- High Precision: Easy groove measurement ensures superior running accuracy.
- Interchangeability: Rail and slide are interchangeable for quick delivery and assembly.
- Maintenance-Free: K1-L lubrication option extends service intervals.
6. Typical Applications
Ideal for semiconductor manufacturing equipment, LCD panel production lines, single-axis robots, injection molding machine pickers, material handling systems, food processing machinery, packaging equipment, and precision measuring instruments requiring wide, stable, low-profile linear motion.
