Belimo K-GM20 Clamp

For HVAC technicians and mechanical contractors, the Belimo K-GM20 serves as a robust actuator clamp assembly designed specifically for GM series actuators. Built for high-torque applications, this replacement damper clamp provides a secure, non-slip connection to 3/4 inch round shafts or 1/2 inch to 1.05 inch square shafts. The heavy-duty construction ensures precision torque transfer in high-pressure air handling units where damper linkage integrity is critical. As a direct Belimo OEM accessory, it maintains factory-spec alignment, preventing the common slippage issues found with generic hardware. Whether performing a retrofit or a new installation, this actuator shaft adapter simplifies the mounting process while ensuring the HVAC damper motor operates within its intended mechanical limits. The V-bolt design and serrated teeth bite into the shaft for a permanent grip, maintaining calibration even under heavy vibration or high-static pressure environments.

• Specifically engineered for Belimo GM series actuators to ensure a perfect mechanical fit.
• Compatible with 3/4 inch damper shafts, providing versatile application across various duct sizes.
• Constructed from high-grade galvanized steel for maximum corrosion resistance and durability.
• V-bolt locking mechanism prevents axial movement and maintains precise damper positioning.
• Designed for high-torque requirements, ensuring reliable performance in heavy-duty commercial zones.

What is the maximum shaft diameter for the K-GM20?
This clamp is optimized for 3/4 inch round shafts but can accommodate up to 1.05 inch square shafts depending on the specific GM actuator configuration.

Can this be used on AM or NM series actuators?
No, the K-GM20 is specifically dimensioned for the higher torque profile and housing geometry of the GM series. Using it on smaller units may cause misalignment.

Does this assembly include the nuts and lock washers?
Yes, this Belimo clamp kit includes the V-bolt and the necessary serrated nuts to provide a complete replacement solution for field installations.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.