NSK LS35EM Linear Guide
The NSK LS35EM is a large-sized, square-type linear motion guide from NSK’s LS series, engineered for high-load, precision-demanding applications. It features a 4-row Gothic arch groove design with a 50° contact angle, delivering exceptional rigidity, multi-directional load capacity, and stable motion accuracy. The EM-type square slider with top-mounted tapped holes offers a low-profile, space-efficient assembly, ideal for general industrial machinery, semi-precision equipment.
Product Overview
The NSK LS35EM is a large-sized, square-type linear motion guide from NSK’s LS series, engineered for high-load, precision-demanding applications. It features a 4-row Gothic arch groove design with a 50° contact angle, delivering exceptional rigidity, multi-directional load capacity, and stable motion accuracy. The EM-type square slider with top-mounted tapped holes offers a low-profile, space-efficient assembly, ideal for general industrial machinery, semi-precision equipment, and automated systems.
Core Official Features
- 4-Row Gothic Arch Grooves: 4-point contact structure provides equal load capacity in radial, reverse-radial, and lateral directions, with excellent resistance to moment loads.
- 50° Optimized Contact Angle: Delivers high rigidity and superior vertical load capacity for compact, high-load applications.
- Self-Aligning Capability: Effectively absorbs minor installation surface errors, ensuring consistent accuracy and smooth movement.
- High Impact Resistance: Bottom rows carry load under heavy impact, extending service life.
- K1™ Maintenance-Free Lubrication: Fully compatible with NSK K1 lubrication units for long-term, low-maintenance operation.
- Interchangeable Dimensions: Conforms to global dimensional standards for easy interchangeability and system integration.
- Wide Option Range: Offered in multiple accuracy and preload grades to meet diverse application requirements.
Official Dimensional Specifications (mm, NSK Official Data)
| Parameter | Value |
|---|---|
| Slider Height (H) | 48 |
| Slider Width (W) | 100 |
| Slider Length (L) | 108 |
| Rail Width (W1) | 34 |
| Rail Height (H1) | 27.5 |
| Slider Radial Mount Hole Pitch | 82 |
| Slider Axial Mount Hole Pitch | 50 |
| Slider Mounting Hole | M10 × 1.5 × 14.5 (Stainless: 8.6 × 14.5) |
| Rail Mount Hole Pitch | 80 |
| Rail Mounting Hole | φ9 × 14 × 12 |
| Grease Nipple | PT1/8 |
| Standard Rail Length | Up to 4000 mm (Max 3500 mm for standard) |
Official Performance Parameters (NSK Official Data)
| Parameter | Value |
|---|---|
| Basic Dynamic Load Rating (C) | 49 kN |
| Basic Static Load Rating (C0) | 80 kN |
| Static Permissible Moment (MR) | 1.37 kN·m |
| Static Permissible Moment (MP) | 1.37 kN·m |
| Static Permissible Moment (MY) | 2.45 kN·m |
| Mass of Slider | 3.9 kg |
| Mass of Rail | 7.0 kg/m |
Standard Specifications
- Accuracy Grades: Normal (PN), High (PH), Precision (SP), Super Precision (UP), Ultra Precision (P3)
- Preload Grades: Z0 (Clearance), Z1 (Light Preload), Z3 (Medium Preload)
- Material: High-carbon chromium bearing steel (standard); stainless steel optional (parenthesized dimensions for stainless)
- Seals: Standard double seals (UU); optional low-dust seals (SS)
- Lubrication: Standard grease lubrication; K1™ maintenance-free unit available
- Surface Treatment: Black oxide finish (standard); fluoride hard chrome plating optional
Typical Applications
- Heavy-duty industrial machinery
- Semi-precision measuring instruments
- Automated assembly and handling systems
- Packaging machinery
- Medical equipment
- Medium-sized machine tools
- Semiconductor manufacturing equipment
