NSK Linear Guide NH30AN
The NSK NH30AN is a high-performance, standard-profile linear guide featuring a square-type slide block engineered for heavy-load applications. Built on NSK’s advanced tribology and ball circulation technologies, it delivers 1.3 times the dynamic load rating and twice the service life compared to the conventional LH Series. It maintains full mounting interchangeability with LH/LS models, enabling seamless upgrades without mechanical design modifications.
1. Product Overview
The NSK NH30AN is a high-performance, standard-profile linear guide featuring a square-type slide block engineered for heavy-load applications. Built on NSK’s advanced tribology and ball circulation technologies, it delivers 1.3 times the dynamic load rating and twice the service life compared to the conventional LH Series. It maintains full mounting interchangeability with LH/LS models, enabling seamless upgrades without mechanical design modifications.
2. Key Dimensions (mm, Official)
| Parameter | Value |
|---|---|
| Slide Block Length (L) | 85.6 |
| Slide Block Width (W) | 60 |
| Slide Block Height (H) | 45 |
| Rail Width (W1) | 28 |
| Rail Height (H1) | 26 |
| Slide Mounting Holes | M8×1.25×12 |
| Rail Mounting Hole Pitch | 80 |
| Approx. Slide Weight | 0.63 kg (Single Slide) |
3. Load Ratings (N, Official)
| Rating Type | Value |
|---|---|
| Basic Dynamic Load Rating (C₁₀₀, 100km life) | 32,500 |
| Basic Dynamic Load Rating (C₅₀, 50km life) | 41,000 |
| Basic Static Load Rating (C₀) | 51,500 |
| Basic Static Moment (My, Single Slide) | 350 N·m |
4. Performance Specifications
- Preload Options:
- Fine Clearance (ZT/Z0): 0–3 µm
- Slight Preload (ZZ/Z1): Standard
- Medium Preload (ZH/Z3): High Rigidity
- Max. Allowable Speed: 150 m/min (2.5 m/s)
- Operating Temperature: -10°C to +80°C (K1-L unit: max 50°C, transient 80°C)
- Accuracy Grades: Preload assembly (P3/P4/P5/P6/PN); Interchangeable (PH/PC)
- Material: Special High-Carbon Steel (Standard); Stainless steel (Optional, NH15–30)
- Standard Protection: End Seals + Bottom Seals; Inner seals (optional for NH20–65)
- Lubrication: Compatible with NSK K1-L™ Lubrication Unit (maintenance-free, optional)
5. Core Features & Benefits (Official)
- Superior Durability: Optimized ball groove geometry doubles service life vs. LH Series.
- High Load Capacity: 50° contact angle enhances vertical/horizontal load resistance.
- Smooth High-Speed Operation: Refined ball circulation path reduces noise at high speeds.
- Self-Aligning Design: DF combination absorbs mounting errors, simplifying installation.
- Full Interchangeability: Mounting dimensions match LH/LS Series; no design changes needed.
- Maintenance-Free: K1-L unit enables long-term lubrication-free operation, reducing costs.
6. Applications
Ideal for machine tools, semiconductor equipment, automation lines, injection molding machines, and precision transfer systems requiring high rigidity, accuracy, and reliability.
