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What is the difference between new and old CB-Series coupling?

Comparing robustness, thickness, and installation considerations between the new and legacy CB-Series gripper couplings

Context

Robotiq grippers for Universal Robots (UR) have used two different CB-Series coupling designs over time. This article highlights the main differences between the old and new couplings so you can identify yours, install it properly, and make necessary tool adjustments.

 

Information

Feature Old Design (AGC-CPL-062-002) New Design (GRP-CPL-062)
Thickness Standard +3 mm thicker — adjust tool center point (TCP)
Cable & Contacts Uses cable CBL-COM-2066-01; less robust Uses cable CBL-COM-2070-01; stronger and more durable
Electronics PCB exposed, more fragile Electronics are over-molded and sealed
Screw Compatibility Requires low-profile socket head screws to avoid PCB damage Works with standard socket head screws
Availability Discontinued legacy version Current standard shipped with Robotiq UR grippers

 

Key Considerations

  • TCP Adjustment: The new coupling adds 3 mm thickness. Update your TCP settings to maintain accuracy.

  • Screw Warning: If you still use the old coupling, only use low-profile screws. Standard screws can damage the PCB.

  • Upgrade Path: The GRP-CPL-062 is the recommended option thanks to its improved durability and easier installation.

Old Design (AGC-CPL-062-002) New Design (GRP-CPL-062)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Conclusion

The updated GRP-CPL-062 coupling is more robust, reliable, and easier to install. If you are switching from the old version, remember to update your TCP settings to account for the 3 mm thickness difference. For best performance, always use the current coupling design in new setups.