Carrier HF91BB125 Ball Joint this collar shaft kit provides

this collar shaft kit provides a durable solution for restoring precise airflow control and linkage alignment in older commercial air handling units

while the 237 Ohm resistor is connected across terminals B and R to facilitate the 4-20 mA signal conversion

Universal Compatibility: Standard 5/16" hole accommodates common HVAC damper rods and crank arms

ensuring professional-grade sweat connections every time

Carrier HF91BB125 Ball Joint this collar shaft kit providesThe Carrier HF91BB125 is a high precision swivel ball joint engineered for critical damper linkage connections within residential and commercial HVACR systems. As a veteran technician knows, the integrity of your linkage assembly determines the accuracy of your airflow control. This OEM Carrier part features a 1 4" x 5 16" configuration, providing the necessary articulation for actuator rod adjustments. Built with a robust alloy, it is designed to