EGH Series Linear Guide

EGH Series Linear Guide for Compact and High-Rigidity Linear Motio

The EGH Series Linear Guide is a low-profile recirculating ball guideway system engineered for machinery requiring compact installation, high rigidity, and efficient space utilization without sacrificing load-bearing capacity.

Optimized Block Geometry & Space Efficiency
The EGH Series pairs a low-profile EG-type guide rail with a high-assembly, square bearing block. This narrow, taller block geometry increases the vertical structural section while maintaining a compact lateral footprint, making the EGH Series well-suited for space-constrained installations, machine columns, and multi-rail arrangements.

Omni-Directional Load Support & Moment Resistance
Utilizing four rows of recirculating steel balls configured at a symmetrical 45-degree contact angle, the EGH Series provides balanced load-carrying capacity across radial, reverse-radial, and lateral orientations. The increased block height enhances structural resistance against pitch and yaw moments, making this series particularly reliable for short-stroke cycles and precision positioning.

Applications & Custom Manufacturing

• Typical Applications: CNC machining centers, automatic tool changers (ATC), optical measuring instruments, compact automation equipment, and multi-axis positioning tables.
• OEM/ODM Capabilities: Yongrun Precision Machinery provides full OEM support and custom linear guide fabrication tailored to customer drawings, technical specifications, and specific operating requirements.

Frequently Asked Questions
Q: Is EGH classified as a low-profile linear guide?
A: Yes. The EGH Series is built around the compact EG rail geometry, delivering a significantly lower overall assembly height compared to standard-height profile rails (such as the HG Series).

Q: Why does the EGH square block feature a taller vertical profile?
A: Within the low-profile EG family, the EGH square block features a taller vertical cross-section compared to flanged variants. This vertical material distribution enhances structural rigidity, particularly against pitch and yaw moment loads (MP and MY).

Q: Can EGH guideways be installed in paired parallel-rail configurations?
A: Yes. Its narrow, non-flanged footprint is well suited for dual parallel-rail setups, particularly where lateral machine bed space or channel width is constrained.

Q: What is the primary difference between EGH and EGW blocks?
A: EGH features a narrow square block optimized for lateral space savings and top-down bolting. EGW features an extended lateral flange that provides a broader mounting footprint for enhanced roll-moment resistance (MR) and versatile top-down or bottom-up mounting.

Q: How does the EGH Series differ from the HGH Series?
A: EGH belongs to the low-profile EG Series, designed with a reduced center-height and lower mass for compact, high-speed automation. HGH belongs to the standard-profile HG Series, offering higher dynamic load ratings and taller cross-sections for heavy-duty machine tools.

Q: Is the EGH Series suitable for precision measuring equipment?
A: Yes. With smooth rolling motion, low friction coefficients, and consistent repeatability, EGH guides are frequently specified for optical inspection tables, vision systems, and laboratory measurement devices.

Q: Can EGH rail lengths be customized?
A: Yes. Rails can be precision-cut to your exact length specifications, including customized mounting hole pitches and symmetrical end distances (E-dimensions).

Q: Can you supply pre-assembled EGH rail and carriage sets?
A: Yes. We configure complete guideway assemblies matched to your specifications, including custom rail lengths, selected block quantities, designated preload grades, and optional surface coatings.

Q: Can EGH linear guides be manufactured to custom technical drawings?
A: Yes. Yongrun supports comprehensive OEM and ODM manufacturing based on 2D engineering drawings, 3D CAD files, standard interchange part numbers, or physical reference samples.

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