EGH20CA Linear Guide

EGH20CA Linear Guide

Product Description

Series: EG Low-Profile Ball-Type Series.
Size Compatibility: 20 mm nominal width (compatible with EGR20 rails).
Design: CA Type (Square, Standard Length / Heavy Load).
Physical Profile: Low assembly height (28 mm) | 69.1 mm block length (L).
Mounting Configuration: Four top-down mounting holes arranged in a square pattern.
Key Advantage: Enhanced moment-load stability and load capacity compared to short "SA" blocks.
Applications: Semiconductor handling, medical equipment, and automated testing machinery.

Selection Guide: EGH20SA (Short) vs. EGH20CA (Standard Long)

While both carriages operate on standard EGR20 linear rails and share identical cross-sectional dimensions (Assembly Height: 28 mm, Width: 42 mm), their differing block lengths optimize them for distinct structural load profiles:

Specify the EGH20SA (Short Body) if:
Best Application: Multi-block carriage designs (e.g., two or four blocks supporting a single carriage plate).
Design Benefit: Because the payload is distributed across multiple points, the compact 50.0 mm block length is fully sufficient. Weighing only 0.16 kg (compared to 0.24 kg for the CA model), it minimizes moving inertia, supporting higher acceleration rates while maximizing effective travel stroke.

Specify the EGH20CA (Standard Long Body) if:
Best Application: Single-block carriages, high-overhang designs, or cantilevered offset loads.
Design Benefit: The two-bolt SA block has a lower Pitch/Yaw moment resistance (80 Nm). The four-bolt, elongated 69.1 mm EGH20CA block delivers significantly higher moment resistance (220 Nm in Pitch and Yaw), helping prevent carriage rocking and angular deflection under single-block moment loads.

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