Yaskawa HW9381442-A Motoman UP130 Robot Manipulator L-Axis Speed Gear Reducer

Description:

The Yaskawa HW9381442-A is used an RV speed reducer used in Yaskawa Motoman UP130 robot manipulators for L-axis motion control, providing high torque and precision positioning. Commonly applied in robotic welding, material handling, and automated production systems requiring smooth, accurate arm movement. Purchased by maintenance teams, OEMs, and integrators for repair, replacement, or refurbishment to restore robot accuracy and extend equipment life.

Applications:

The Yaskawa HW9381442-A reducer is used in industrial robotics where precise torque transmission and positioning are critical for articulated robot arms. It is commonly deployed in robotic welding cells, assembly lines, material handling systems, and automated manufacturing environments where L-axis movement directly impacts reach, lifting capability, and positioning accuracy. This component is essential in maintaining repeatability and performance in high-cycle robotic operations.

Technical Specifications:

• Manufacturer: Yaskawa Electric (Motoman)
• Model / Part Number: HW9381442-A
• Product Type: RV Speed Reducer / Gearbox
• Axis: L-Axis (robot arm primary lifting axis)
• Robot Compatibility: Motoman UP130, UP165, UP200
• Gear Ratio: ~182.54:1
• Gear Type: RV (cycloidal reduction mechanism for high precision and rigidity)
• Function: Reduces speed and increases torque for robot joint movement
• Installation: Integrated into robot manipulator arm assembly
• Construction: Heavy-duty precision machined gearbox
• Weight: ~150 lb packaged class
• Application Type: Industrial robotic motion control
• Availability: Typically new, surplus, or refurbished

Common Replacements:

• Yaskawa HW9381465-A
• Yaskawa HW9381388-A
• Yaskawa HW9380961-A