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Bard 139-442BX - Actuator Tri-Arm
The Bard 139-442BX Actuator Tri-Arm is an OEM mechanical linkage used in certain Bard ventilator and economizer damper actuator assemblies to transfer actuator motion into smooth, repeatable damper movement for proper outdoor air and ventilation control. When the original tri-arm is bent, worn, or has excess play at the connection points, damper operation can become erratic and lead to airflow issues, poor economizer performance, or nuisance faults. This replacement part is built to fit the factory actuator linkage geometry so your Bard system can maintain correct damper positioning and dependable operation; confirm the part number against your unit or parts manual before ordering to ensure proper application.
- Technical Specifications
- Product number: 139-442BX
- Manufacturer description: Actuator Tri-Arm
- HTS Code: "8415.90.8085"
$82.00
What does the "BX" suffix mean?
Bard uses suffixes like "BX" to manage parts internally. These do not change the physical form or function of the part.
A part number ending in "BX" simply means it is packaged in a box for shipping, rather than for internal assembly use.
Example: 8406-142BX is physically identical to 8406-142.