CNC Linear Guide Rail Set 15mm (High Rigidity) | Fits HGH15CA Series
Compatible Replacement for HIWIN HGH15CA
This 15mm linear guide block is engineered as a 100% interchangeable alternative to the HIWIN HGH15CA. It matches the original datasheet specifications for dimensions, load ratings (11.38 kN), and stiffness, making it an ideal cost-effective solution for 3D printers, light automation, and desktop CNC routers.
Engineering Data / Performance Specs
Dimensions and load ratings comply with ISO standard series for Size 15.
| Dimensional & Mechanical Data | |
|---|---|
| Model Number | HGH15CA (Square Type / Heavy Load) |
| Nominal Rail Width (W) | 15 mm |
| Basic Dynamic Load Rating (C) | 11.38 kN |
| Basic Static Load Rating (C0) | 16.97 kN |
| Static Moment (MR) | 0.15 kN-m |
| Static Moment (MP / MY) | 0.08 kN-m |
| Mounting Bolt Size | M4 x 16 |
Structure & Features
- 4-Row Circular Arc Design: Features a 45° contact angle design that ensures equal load capacity in all four directions (radial, reverse radial, and lateral). This provides superior stability for compact X/Y axis builds.
- Material Standard: Block body and balls are manufactured using GCr15 Bearing Steel, hardened to HRC 60-62 for wear resistance.
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Lubrication Guide
⚠️ Critical: Blocks are shipped with anti-rust oil, NOT lubricant. You must grease them before use.
- Grease Type: Lithium Soap-based Grease (NLGI No.2).
- Initial Fill Amount: Approx. 1 cm³ per block (Fill slowly until grease overflows slightly).
- Refill Interval: Every 100km of travel distance, or every 3-6 months depending on operating speed.
- Method: Inject via the supplied M4 grease nipple.
Installation & Mounting
- Surface Prep: Ensure the mounting surface is flat. Rough surfaces will reduce accuracy and lifespan.
- Datum Plane: Press the block reference edge firmly against the mounting shoulder before tightening.
- Torque Sequence: Tighten the 4 bolts (M4) diagonally (X-pattern) in 2-3 stages. Do not fully tighten one bolt at a time.
Accuracy & Preload Class
- C (Normal): +/- 0.1mm (Standard Stock)
- H (High): +/- 0.03mm (Recommended for Precision)
- Z0 (Light): Best for 3D printers & light automation.
- ZA (Medium): Recommended for small CNC routers.
Packaging
Included in Box: 1x HGH15CA Linear Block, 1x Grease Nipple (M4).
Protection: Vacuum sealed in anti-rust bag, individually boxed.
*Disclaimer: HIWIN® is a registered trademark of HIWIN Technologies Corp. This product is an aftermarket replacement part manufactured by YourBrand and is not affiliated with HIWIN. All technical data is provided for compatibility reference.
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