CNC Linear Guide Rail Set 30mm (High Rigidity) | Fits HGH30CA Series
Compatible Replacement for HIWIN HGH30CA
This 30mm linear guide block is engineered as a 100% interchangeable alternative to the HIWIN HGH30CA. It matches the original datasheet specifications for dimensions, load ratings, and mass, making it an ideal cost-effective solution for industrial CNC mills, plasma cutters, and heavy automation.
Engineering Data / Performance Specs
Dimensions and load ratings comply with ISO standard series for Size 30.
| Dimensional & Mechanical Data | |
|---|---|
| Model Number | HGH30CA (Square Type / Heavy Load) |
| Nominal Rail Width (W) | 30 mm |
| Basic Dynamic Load Rating (C) | 38.74 kN |
| Basic Static Load Rating (C0) | 52.19 kN |
| Weight (Block) | 1.09 kg |
| Weight (Rail) | 4.47 kg/m |
| Static Moment (MR) | 1.15 kN-m |
| Static Moment (MP / MY) | 0.80 kN-m |
| Mounting Bolt Size | M8 x 25 |
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 balanced rigidity for multi-axis CNC machines.
- Material Standard: Block body and balls are manufactured using GCr15 Bearing Steel, hardened to HRC 60-62 for wear resistance.
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![HGH30CA Compatible Linear Guide Block 30mm - Direct Replacement for HIWIN]()
![Square Type Heavy Load Linear Bearing Carriage 30mm (HGH30CA Style)]()
![Square Type Heavy Load Linear Bearing Carriage 30mm (HGH30CA Style)]()
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. 7 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 M6 grease nipple.
Installation & Mounting
- Surface Prep: Ensure the mounting surface is machined 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 (M8) diagonally (X-pattern) in 2-3 stages.
Accuracy & Preload Class
- C (Normal): +/- 0.1mm (Standard Stock)
- H (High): +/- 0.03mm (Recommended for Precision)
- Z0 (Light): Best for general automation.
- ZA (Medium): Recommended for industrial CNC mills.
Packaging
Included in Box: 1x HGH30CA Linear Block, 1x Grease Nipple (M6).
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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