Belimo AFRB24 Valve Actuator, Spring Return, Ac/Dc 24 V, On/Off

Expand the mechanical routing capabilities of your ventilation layout with the Belimo AH-GMA actuator crank arm. This rugged industrial hardware accessory is the go-to solution for HVAC contractors requiring a linkage or push-rod setup to drive dampers, louvers, or vents that cannot accommodate direct shaft mounting.

Crafted from premium-grade galvanized steel, the AH-GMA prevents mechanical deflection under load and delivers reliable structural integrity over thousands of duty cycles. The arm fits natively inside the standard universal V-bolt shaft clamp pre-installed on your AM or GM series actuator, utilizing the existing clamping pressure for a non-slip, robust connection.

Key Benefits:

• Adjustable Mechanical Leverage: Features multiple pre-drilled linkage attachment holes along the length of the arm, giving you full control over the linear stroke distance and mechanical advantage.

• Perfect Form Factor: Tailored exactly to match the structural design of Belimo’s robust AM and GM non-spring return damper actuators.

• Corrosion-Resistant: The zinc-coated galvanized finish stands up beautifully to high-humidity plenum spaces and rigorous airflow environments without rusting.

Model: AH-GMA (Actuator Arm for Standard Shaft Clamp)

Compatible Models / Direct Replacements:

• Belimo Actuators: AM Series (e.g., AMB24, AMX24) and GM Series (e.g., GMB24, GMX24) non-spring return damper actuators.

• Related Coupling Accessories: Belimo KG8 or KG10 ball joints, $5/16″$ or $3/8″$ push rods, and ZG-AM or ZG-GM series crank arm mounting kits.