Linear guideways and bearing blocks are critical components in high-performance automation, CNC machinery, robotics, and precision systems. As an authorized distributor of Hiwin, Proax Technologies offers a wide range of linear motion solutions designed to maximize efficiency, accuracy, and reliability.
What Are Linear Guideways?
Linear guideways (also known as linear bearings or motion guides) are mechanical systems that enable smooth, low-friction movement along a straight path. By using re-circulating rolling elements between a profiled rail and a bearing block, they deliver:
- High precision and repeatability
- Low friction (1/50 that of traditional sliding guides)
- Consistent smooth motion
- High load capacity in all directions
These features make them ideal for applications where accuracy and speed are critical.
How Do Linear Guideways Work?
A typical linear guideway consists of two parts:
- Rail (profiled rail): The stationary base mounted to the frame
- Bearing block: The moving carriage that houses recirculating balls or rollers
The rolling elements within the block provide linear motion with minimal resistance, making them suitable for high-speed or heavy-duty applications.
Hiwin Bearing Blocks: Types and Features
Hiwin offers both square and flange-type bearing blocks, each optimized for different load directions and mounting conditions:
- Flange Type Blocks: Lower height, ideal for heavy moment loads
- Square Type Blocks: Compact and suitable for standard applications
Key features include:
- Seals and scrapers to block contaminants
- Self-aligning designs like the HG and RG series for easy installation
- Interchangeability across rails and blocks within the same series
Explore the full bearing block selection to find the right fit.
Comparison of Hiwin Guideway Series
| Series | Load Range | Key Features |
|---|---|---|
| HG | 11.38 – 208.36 kN | Self-aligning, high speed, high rigidity, equal load in all directions |
| EG | 5.35 – 33.35 kN | Low profile, high rigidity, compact, space-saving |
| CG | High Moment Load | O-type design, stainless cover strip, optimized bearing circulation |
| RG | 11.3 – 275.3 kN | Roller type, ultra-high rigidity, 45° contact angle |
| WE | 5.23 – 29.8 kN | Wide rail, low profile, self-aligning |
| MG | 0.68 – 8.93 kN | Miniature, stainless steel, anti-corrosion, high stiffness |
Selecting the Right Hiwin Linear Guideway
Before choosing your guideway and block, evaluate the following:
- Load direction & magnitude – Radial, reverse radial, and lateral
- Speed & acceleration requirements – For high-speed machines, QH or QE series with SynchMotion™ technology may be optimal
- Mounting space constraints – EG and WE series are ideal for low-profile installations
- Noise levels & smoothness – SynchMotion™-equipped models offer quieter, more stable motion
- Working environment – Consider protective seals and stainless steel if exposed to debris or corrosive agents
Applications
Hiwin linear guideways and blocks are used in:
- CNC machines
- Robotics
- Packaging and labeling equipment
- Semiconductor and medical devices
- High-speed pick-and-place systems
Final Thoughts
Whether you're building a new machine or upgrading your linear motion system, Proax's lineup of Hiwin linear guideways and bearing blocks offers proven performance across every industrial segment. With premium features, high load capacity, and unmatched precision, Hiwin remains a top choice in motion technology.
Need help choosing the right configuration? Contact our team for personalized guidance or start browsing our linear motion solutions today.
