NexBot Robotics Knowledge Base

Which NexBot robot models and joint positions are compatible with the PLN122-001 gearbox?

This article details the compatible robot series (R-50, R-100, C-10) and specific joint positions (J2, J3, J4) for the NexBot Robotics NXB-GBX-PLN122-001 planetary gearbox.

FAQ Beginner Estimated time: 5 minutes Updated: 2025-10-08 Dr. Sarah Chen, Senior Engineer

Related Products

NXB-GBX-PLN122-001

Article

This article provides a definitive guide on the compatibility of the NexBot Robotics PLN122-001 Planetary Gearbox (SKU: NXB-GBX-PLN122-001) with specific NexBot robot models and joint axes. Using this component in a supported configuration is critical for achieving rated performance, accuracy, and operational lifespan.

Answer: Compatible Robot Series and Joints

The NXB-GBX-PLN122-001 Planetary Gearbox 10:1 Ratio is engineered for use in the following NexBot Robotics models and joint positions:

Compatible Robot Series:

  • NexBot R-50 Series (Articulated)
  • NexBot R-100 Series (Articulated)
  • NexBot C-10 Series (Collaborative)

Approved Joint Positions:

  • J2 (Axis 2): The primary shoulder/body joint responsible for forward and backward pitching motion.
  • J3 (Axis 3): The elbow joint, which raises and lowers the robot arm.
  • J4 (Axis 4): The wrist roll joint, which controls the rotation of the forearm.

The selection of these specific joints is based on the torque, precision, and load requirements of the robot's main axes. The PLN122-001's design provides the necessary performance characteristics for these demanding applications.

Key Specifications Overview

The suitability of the NXB-GBX-PLN122-001 for these applications is determined by its key technical specifications:

  • SKU: NXB-GBX-PLN122-001
  • Product Name: NexBot Robotics PLN122-001 Planetary Gearbox 10:1 Ratio
  • Maximum Continuous Torque: 220 Nm
  • Gear Ratio: 10:1
  • Backlash: < 3 arcmin (arcminutes)
  • IP Rating: IP65 (Dust-tight and protected against water jets)
  • Dimensions: 185 x 122 x 122 mm

This combination of high torque density, low backlash, and environmental sealing makes it the standard replacement part for the J2, J3, and J4 axes on the listed robot series.

Important Considerations

  • Unsupported Joints: Do not attempt to install the NXB-GBX-PLN122-001 on other joint positions (e.g., J1, J5, J6). These axes have different torque, size, and performance requirements, and using an incorrect gearbox can lead to premature failure, positional errors, or catastrophic damage to the robot.
  • Part Verification: Always confirm the part number on the component label matches NXB-GBX-PLN122-001 before beginning installation. Refer to your robot's specific maintenance manual for the correct part number for each axis.
  • Firmware Compatibility: Ensure the robot controller is running a compatible firmware version that recognizes the performance profile of this gearbox. Consult the release notes for your robot series for more information.

Related Topics

For further assistance, please refer to the following articles:

  • How to Install the PLN122-001 Gearbox on an R-100 Robot Arm
  • Scheduled Maintenance and Lubrication for Planetary Gearboxes
  • Troubleshooting E-4115 (Axis Position Tracking Error)

Keywords

PLN122-001 NXB-GBX-PLN122-001 planetary gearbox gearbox compatibility R-50 R-100 C-10 J2 joint J3 joint J4 axis