Belimo K7-2 Standard Clamp

When you are outfitting Belimo AFB or NFB series actuators, the Belimo K7-2 Standard Clamp is the essential mechanical interface for direct-coupled damper shaft mounting. This reversible, galvanized steel clamp is engineered for high-torque applications, providing a slip-free grip on damper shafts with diameters of 1/2", 3/4", or 1.05". Its symmetrical design allows for versatile central mounting, ensuring the actuator remains perfectly perpendicular to the damper surface to prevent binding and torsional stress on the gear train.

For a precise mechanical installation, this universal clamp includes a reversible shaft feature that accommodates various field requirements without needing additional brackets. Technicians should utilize a 10mm wrench to achieve the recommended 6-8 ft-lb of torque on the V-bolt nuts, securing the connection for reliable spring-return operation. Whether you are performing a retrofit or a new construction HVAC installation, the K7-2 ensures 100% actuator compatibility and long-term durability in stationary air handling systems.

• Wide Compatibility: Specifically designed to fit 1/2 inch to 1.05 inch round or square damper shafts.
• Reversible Mounting: Symmetrical construction allows for universal installation on either side of the actuator housing.
• Slip-Resistant Grip: High-strength galvanized steel teeth ensure the clamp maintains its position under full 90 in-lb torque loads.
• Precision Alignment: Supports central mounting to minimize mechanical wear and ensure smooth 90-degree rotation.

• Will this clamp fit my specific shaft diameter? High-volume damper shaft sizes including 1/2", 3/4", and 1.05" are natively supported by the K7-2.
• Is this compatible with non-spring return actuators? This clamp is primarily the standard replacement part for the AFB and NFB spring-return series.
• What tools are required for installation? A standard 10mm wrench or socket is required to properly torque the clamp nuts to the OEM specification.

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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.