Differences and Customization Guide for LA/LG/LK Series Linear Modules

The LA/LG/LK series linear modules are STEPPERONLINE's latest high-precision, cost-effective solutions. Compared to traditional linear modules, they feature a streamlined design, superior efficiency, excellent heat dissipation, easy installation, and low maintenance costs—making them ideal for replacing conventional pneumatic actuators in applications demanding higher performance and control precision. Below, we detail the key differences between these three series and their customization options.

1. Key Differences

1.1. LA Series

The LA series features an integrated belt-driven design, comprising:

• Timing belt
• Linear guides
• Aluminum alloy profile
• Base plate
• Work platform
• Motor mount
• Synchronous pulley
• Limit switches

Advantages:

• High Precision: Achieves ±0.04mm or better repeatability via precision timing pulleys and guide systems.
• High Speed: Low inertia from the flexible, lightweight belt enables speeds up to 2 m/s.
• Long Stroke: Supports extended travel (meters-long) through belt splicing, ideal for logistics conveyors.

1.2. LG Series

The LG series uses an integrated ball screw mechanism, including:

• Ball screw
• Linear guides
• Aluminum alloy profile
• Base plate
• Work platform
• Coupling
• Motor mount
• Limit switches

Advantages:

• Multi-Axis Compatibility: Suitable for X/Y/Z-axis applications (unlike belt-driven LA series).
• Full Enclosure: Protects against dust/debris, reducing maintenance and screw damage.
• Ultra-High Precision: Ball screw drive delivers ±0.01mm repeatability.
• Heavy Load Capacity: Supports 120kg (horizontal) and 50kg (vertical) loads.

1.3. LK Series

The LK series combines a motor-driven platform with:

• Ball screw nut
• Linear guide slider (integrated with the screw nut)
• Semi-enclosed design with metal cover

Advantages:

• Enhanced Protection: Metal cover shields the screw from contaminants.
• Precision & Rigidity: Optimized via FEA analysis for ±0.01mm repeatability under high loads.
• Reliable & Test-Friendly: Critical metrics (e.g., parallelism, starting torque) are easily monitored for predictive maintenance.

2. Customization Guide

To help you better understand and utilize our linear modules, we provide detailed manuals in the product download section (categorized by width dimensions, e.g., LA5/8/12, LG5/8/12...).

Model Numbering Explained in Manuals

2.1. Motor Compatibility

Each series supports at least two motor mounting sizes to match your requirements.

2.2. Motor Mounting Positions

Four configurable positions (illustrated in manuals) for space-constrained installations.

2.3. Lead (Pitch) Selection

• Smaller lead: Higher thrust (ideal for heavy loads).

• Larger lead: Higher speed (ideal for lightweight applications).

• Applies to both ball screws (LG/LK) and belts (LA).

2.4. Sensor Configuration

• Standard: 3 sensors included (mounting positions adjustable).

• Customizable: Request fewer or additional sensors as needed.

2.5. Stroke Length

• 50mm increments (e.g., LG8 series offers 50–1100mm in ~20+ options).

• Varies by series; check individual manuals for ranges.

Finally, linear modules are the key promoted products of Stepperonline. Their advantages lie in short delivery time, low minimum order quantity, and easy installation. Welcome to consult us!

Updated on: 29/07/2025