External Dual Axis Straight Line Guide Rails

Detailed Introduction to Dual-Axis Linear Guides

Dual-axis linear guides are roller-type linear motion components designed for light-load scenarios, with core advantages of high speed, low noise, and maintenance-free operation. With 6063-T5 aluminum alloy as the main body and two high-precision chrome-plated optical axes, they reduce friction through line-contact rolling between rollers and axes, making them suitable for various fields such as automation, electronics, and furniture, and the preferred choice for high-precision linear transmission.

Product Definition and Structural Principle

1. Basic Definition

Dual-axis linear guides belong to roller-type linear guide pairs, mainly composed of guide rail profiles, dual guide axes, and roller sliders. Adopting line-contact rolling friction (friction coefficient 0.001-0.003), they are suitable for light-load and high-frequency motion scenarios, with the advantages of high precision and low wear.

2. Core Structure

Guide Rail Body: 6063-T5 aluminum alloy with anodized surface treatment, lightweight, corrosion-resistant, and suitable for complex working conditions.

3. Working Principle

The core of dual-axis linear guides is line-contact rolling transmission. Rollers make line contact with dual axes and roll, resulting in low friction resistance. The slider bears force evenly, enabling stable, precise, high-frequency and high-speed linear motion to meet the needs of light-load scenarios.

Product Classification (by Structure)

1. Built-in Dual-Axis Linear Guides (Clamp-in Type/ISG/SGR Series)

Built-in Type (ISG/SGR Series): The slider is embedded in the guide rail, featuring a compact structure, high precision (repeat positioning accuracy ±0.002mm), and good dust resistance, suitable for precision testing, robotic arms, and other scenarios.

2. External Dual-Axis Linear Guides (Clamp-on Type/OSG/LGD Series)

External Type (OSG/LGD Series): The slider wraps around the guide rail, with flexible installation, low cost, and moderate precision, suitable for automation racks, packaging machinery, furniture sliding doors and other scenarios.

Core Performance Advantages

Core advantages are as follows:

● High Speed and Low Noise: Friction coefficient 0.001-0.003, maximum speed 10m/s, noise ≤50dB.

● Reliable Precision: Parallelism and straightness ≤0.01mm/m, repeat positioning accuracy ±0.002-±0.003mm.

● Maintenance-free and Long Service Life: Sealed rollers + long-acting lubrication, service life ≥20000 hours.

● Adjustable Clearance: Eccentric structure, switchable between zero clearance and light clearance.

Key Technical Parameters (General Standard Model)

The following are the core parameters of the general standard dual-axis linear guides (slight differences between models, customizable):

● Guide Axis: SUJ2 material (HRC60±2), diameter 8-15mm, parallelism and straightness ≤0.01mm/m.

● Guide Rail Body: 6063-T5 aluminum alloy, customizable length 100mm-6000mm, radial load 50N-500N.

● Slider: Built-in sealed rollers, running speed 0-10m/s, repeat positioning accuracy ±0.002-±0.003mm.

● Environmental Adaptation: Operating temperature -10℃～80℃, protection level IP54 (some can be upgraded to IP65).

● Installation and Service Life: Flexible installation, service life ≥20000 hours under normal working conditions.

Typical Application Fields and Selection Suggestions

● Automation Equipment: Suitable for robotic arms, conveyor lines; preferred for light-load and high-frequency scenarios; built-in type for precision parts, external type for general parts.

● Woodworking/Printing/Packaging: For high-frequency operation and maintenance-free requirements, the external type is preferred.

● Furniture/Building Materials: Sliding doors, drawers, etc., choose external type (lightweight and low noise).

● Medical/Food: Clean scenarios; built-in type for precision instruments, external type for general scenarios.

● New Energy/Lithium Battery: Lightweight and high-precision requirements; built-in type for cutting and testing, external type for handling and conveying.

● Selection Points: Preferred for light-load, high-speed, low-noise and maintenance-free scenarios; choose ball linear guides for heavy-load and ultra-high precision scenarios.

Selection Parameter Table (General Model)

Note: The parameters are general standards, customizable according to requirements, and selection should be based on actual working conditions.