The HG Series is engineered for high-load, high-precision industrial applications. Its design is governed by four foundational mechanical principles that ensure superior performance and longevity.
1.4-Way Equal Load Rating (45° Contact Angle)
The HG series utilizes a four-row ball configuration with a 45-degree contact angle between the raceways and the rolling elements. This symmetrical geometry provides equal load-carrying capacity in radial, reverse-radial, and lateral directions. This allows engineers absolute freedom in mounting orientation-whether horizontal, vertical, or inverted-without compromising load stability or rigidity.
2.Self-Alignment Capability (Face-to-Face DF Configuration)
By utilizing a circular-arc groove design in a Face-to-Face (DF) arrangement, the HG block can automatically compensate for minor installation errors. When mounted on slightly uneven surfaces, the internal rolling elements undergo microscopic elastic deformation to absorb misalignment. This self-aligning feature ensures smooth motion and reduces the cost and complexity of mounting surface preparation.
3.High Load Capacity via Optimized Curvature Ratio
The raceway grooves are precision-ground to a circular-arc profile with a radius slightly larger than the steel balls (optimized curvature). Under load, this design transforms the theoretical "point contact" into an elliptical "surface contact." This maximizes the contact area, significantly increasing the Dynamic Load Rating (C) and fatigue life compared to traditional linear guides.
4.Zero-Backlash Rigidity (Controlled Preload)
To meet the demands of high-precision CNC machining, the HG series is designed to accommodate various preload levels. By utilizing micron-matched oversized balls, internal clearance is eliminated. This constant mechanical tension exponentially increases structural stiffness, allowing the system to dampen the violent harmonic vibrations inherent in heavy milling operations.
5.Simplified Maintenance & Interchangeability
Engineered with a ball-retention system, the block prevents rolling elements from falling out during installation or removal from the rail. Furthermore, strict dimensional control during the manufacturing process ensures that rails and blocks are fully interchangeable, allowing for rapid component replacement and reduced machine downtime.