CNC Linear Guide Rail Set 20mm (High Rigidity) | Fits HGH20HA Series
Compatible Replacement for HIWIN HGH20HA
This 20mm linear guide block is the Long Type (Super Heavy Load) version, engineered as a 100% interchangeable alternative to the HIWIN HGH20HA. It features a longer body for increased load capacity (21.18 kN) and higher rigidity, making it ideal for CNC Z-axis and vertical automation applications.
Engineering Data / Performance Specs
Dimensions and load ratings comply with ISO standard series for Size 20 (Long).
| Dimensional & Mechanical Data | |
|---|---|
| Model Number | HGH20HA (Square Type / Super Heavy Load) |
| Nominal Rail Width (W) | 20 mm |
| Basic Dynamic Load Rating (C) | 21.18 kN |
| Basic Static Load Rating (C0) | 35.90 kN |
| Static Moment (MR) | 0.48 kN-m |
| Static Moment (MP / MY) | 0.37 kN-m |
| Mounting Bolt Size | M5 x 16 |
Structure & Features
- High Rigidity Long Block: The "HA" series features more bearing balls than standard blocks, providing 30% higher load capacity and stiffness.
- 4-Row Circular Arc Design: Features a 45° contact angle design that ensures equal load capacity in all four directions.
- Material Standard: Manufactured using GCr15 Bearing Steel, hardened to HRC 60-62.
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. 3 cm³ per block (Fill slowly until grease overflows slightly).
- Refill Interval: Every 100km of travel distance, or every 3-6 months.
- Method: Inject via the supplied M5 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 (M5) diagonally (X-pattern) in 2-3 stages.
Accuracy & Preload Class
- C (Normal): +/- 0.1mm (Standard Stock)
- H (High): +/- 0.03mm (Recommended)
- Z0 (Light): Smooth motion, low vibration.
- ZA (Medium): Increased rigidity for CNC Z-Axis.
Packaging
Included in Box: 1x HGH20HA Linear Block, 1x Grease Nipple (M5).
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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