WITTENSTEIN LP120X-MF2-50-1I1-3X-SPE Low-Backlash Planetary Gearbox for Precision Motion Control

Product Overview

The WITTENSTEIN LP120X-MF2-50-1I1-3X-SPE is a high-precision planetary gearbox from the alpha LP series, specifically designed for demanding motion control and servo drive applications. This gearbox features a reduction ratio of 50:1, providing high torque multiplication while maintaining low backlash for precise positioning. The LP series is known for its compact design, high torsional stiffness, and quiet operation, making it suitable for use in robotics, CNC machine tools, packaging machinery, and other automated systems. The LP120X-MF2-50-1I1-3X-SPE is designed for flange mounting (B5) to servo motors, with a through-hole for easy motor integration.

Key Features of LP120X-MF2-50-1I1-3X-SPE

The planetary gearbox utilizes case-hardened and ground gearing for long life and high load capacity. The LP series is engineered with a long centering feature for easy and accurate mounting, reducing alignment errors that can cause premature wear. The gearbox features low backlash (typically ≤ 3 arcmin for standard version), ensuring high positioning accuracy in reversing applications. The LP120X-MF2-50-1I1-3X-SPE is lubricated with synthetic grease, maintenance-free for the rated life, and can be mounted in any orientation. The housing is made of high-strength aluminum alloy, providing good heat dissipation and weight reduction. The gearbox is sealed against dust and moisture to IP65, suitable for harsh industrial environments. The output shaft is a solid shaft with keyway for secure coupling to the load. The gearbox operates in temperatures ranging from -25 to +90°C.

Technical Specifications

• Manufacturer: WITTENSTEIN alpha GmbH

• Part Number: LP120X-MF2-50-1I1-3X-SPE

• Series: alpha LP

• Product Type: Low-Backlash Planetary Gearbox

• Reduction Ratio: 50:1 (i=50)

• Frame Size: 120

• Backlash: Low backlash version (≤ 3 arcmin)

• Mounting Style: MF2 (flange mounting B5 with through-hole)

• Output Shaft: Solid shaft with keyway (1I1)

• Degree of Protection: IP65

• Lubrication: Synthetic grease, maintenance-free

• Operating Temperature: -25 to +90 °C

• Maximum Input Speed: Typically 3000-7000 rpm (consult datasheet)

• Maximum Emergency Torque: Consult WITTENSTEIN documentation

• Torsional Stiffness: High rigidity for precise positioning

• Certifications: CE, RoHS

Functional Description

The planetary gearbox transmits torque from a servo motor (input) to a load (output) while reducing speed and multiplying torque by the gear ratio. The planetary design provides high power density and smooth operation. Low backlash ensures minimal lost motion between input and output, critical for reversing applications. The through-hole design allows convenient motor shaft coupling. The maintenance-free lubrication eliminates periodic servicing, reducing downtime. The gearbox can be used in both continuous and intermittent duty cycles.

Applications

The WITTENSTEIN LP120X-MF2-50-1I1-3X-SPE is used in precision motion control applications requiring high torque and accuracy, including rotary axes on CNC machines, robotic joints, indexing tables, packaging machinery, and medical imaging equipment.