HIWIN EGH15 Linear Guideway Slider
The HIWIN EGH15 is a square-type block belonging to the EG Series of low-profile ball linear guideways, designed specifically for applications with limited installation space. It features a four-row ball track design with 45° contact angle, providing equal load ratings in all four directions and self-aligning capability to absorb installation errors.
The HIWIN EGH15 is a square-type block belonging to the EG Series of low-profile ball linear guideways, designed specifically for applications with limited installation space. It features a four-row ball track design with 45° contact angle, providing equal load ratings in all four directions and self-aligning capability to absorb installation errors. The EGH15 is available in two main variants: EGH15SA (medium load capacity with 2 mounting bolts) and EGH15CA (heavy load capacity with 4 mounting bolts).
Key Features
- Low Profile Design: Reduced assembly height (24 mm total height) and compact dimensions for space-constrained applications
- Equal Load Ratings: 45° arrangement of ball tracks enables equal load-bearing capacity in radial, reverse radial, and lateral directions
- Self-Aligning Capability: Absorbs installation surface errors, ensuring higher accuracy and smooth operation
- Ball Retainers: Prevent balls from falling out during assembly when the block is removed from the rail
- High Rigidity: Four-row ball design provides excellent rigidity despite the low profile
- Preload Options: Z0 (light preload: 0~0.02C), ZA (medium preload: 0.03~0.05C), ZB (heavy preload: 0.06~0.08C)
- Accuracy Classes: C (normal), H (high), P (precision)
Technical Specifications
Dimensions (in mm)
| Parameter | Description | EGH15SA | EGH15CA |
|---|---|---|---|
| H | Total height | 24 | 24 |
| H₁ | Mounting surface to top | 4.5 | 4.5 |
| N | Rail contact height | 9.5 | 9.5 |
| W | Block width | 34 | 34 |
| B | Block body width | 26 | 26 |
| B₁ | Seal thickness | 4 | 4 |
| L | Block length | 40.1 | 56.8 |
| L₁ | Mounting hole distance | 23.1 | 39.8 |
| K₁ | Mounting hole center distance | 14.8 | 10.15 |
| K₂ | Mounting hole edge distance | 3.5 | 3.5 |
| G | Mounting hole diameter | 5.7 | 5.7 |
| M | Mounting bolt size | M4 | M4 |
| l | Mounting bolt depth | 6 | 6 |
| T | Rail width | 6 | 6 |
| H₂ | Seal height | 5.5 | 5.5 |
| H₃ | Rail contact depth | 6 | 6 |
| Mass | Block weight | 0.09 kg | 0.15 kg |
Load Ratings and Torques
| Parameter | Description | EGH15SA | EGH15CA |
|---|---|---|---|
| Cdyn | Dynamic load rating | 5,350 N | 7,830 N |
| C₀ | Static load rating | 9,400 N | 16,190 N |
| M0X | Static moment around X-axis | 80 Nm | 130 Nm |
| M0Y | Static moment around Y-axis | 40 Nm | 100 Nm |
| M0Z | Static moment around Z-axis | 40 Nm | 100 Nm |
Compatible Rail
The EGH15 is designed to be used with the EGR15 profile rail (15 mm width, 12.5 mm height). The rail's fixing bolt size is M3x16.
Accessories
HIWIN offers a range of accessories for the EGH15:
- Seal Sets: EG-15-SS (standard), EG-15-DD (double end), EG-15-ZZ (end with metal scraper), EG-15-KK (double end with metal scraper)
- Long-term Lubrication Units: EG-15-E2-KIT series for extended relubrication intervals (can last for entire service life in some applications)
- Clamping Elements: HK1501A, MK1501A, MKS1501A for securing the block in position
Applications
The EGH15 is ideal for:
- High-speed automation machinery
- Semiconductor manufacturing equipment
- Laser engraving machines
- Packaging equipment
- Medical devices
- 3D printers
- Any application requiring precise linear motion in a compact space
Model Naming Convention
- EGH: Series designation (EG = low profile, H = square type block)
- 15: Size (15 mm rail width)
- S/C: Load capacity (S = medium, C = heavy)
- A: Mounting from top
- Z0/ZA/ZB: Preload class
- C/H/P: Accuracy class
