Schneider Electric (Barber Colman) AM-116 Crank Arm

The Schneider Electric (Barber Colman) AM-116 Crank Arm is a professional-grade linkage component designed for heavy-duty HVAC damper and valve automation. Engineered for use with a 1/2 inch splined shaft, this zinc-plated crank arm provides a slip-free connection to medium-torque actuators, including both spring-return and non-spring-return models. The adjustable design features a radius ranging from 7/8 inch to 3 1/8 inches, allowing technicians to fine-tune the mechanical advantage and stroke length for precise air volume control or fluid modulation. Its corrosion-resistant finish and robust construction ensure long-term reliability in demanding commercial environments where precision actuator linkage performance is critical. Whether you are performing a retrofit or a new installation, the AM-116 crank arm facilitates seamless integration with Barber Colman damper actuators, providing the rigidity required to maintain accurate positioning under air pressure loads.

• Adjustable Stroke Radius: The 7/8" to 3 1/8" adjustment range allows for flexible torque transfer and customized linear travel.
• Secure Splined Connection: Specifically notched for 1/2" splined shafts to prevent the linkage from slipping under high-static pressure loads.
• Corrosion Resistance: High-quality zinc plating protects the component against humidity and environmental wear common in air handling units.
• Universal Medium-Torque Compatibility: Works effectively with 90-degree and 180-degree stroke actuators in various linkage configurations.

Is the AM-116 compatible with smooth-bore shafts?
No, this crank arm is specifically designed with a splined internal diameter to mesh with 1/2" splined actuator drive shafts for a positive mechanical lock.

Can I use this for both damper and valve linkages?
Yes, it is commonly used in both damper drive applications and valve linkages where a crank-arm-to-connecting-rod configuration is required.

Does this include the ball joint or linkage rod?
This item is the crank arm only. Swivel joints, ball joints, and push-rods must be sized and ordered separately based on your specific throw requirements.

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.