Trane ARM0058 Crank Arm

The Trane ARM0058 Crank Arm is a critical OEM component designed for high-precision HVAC damper linkage systems. Featuring a specific .38" diameter bore, this crank arm is engineered to integrate seamlessly with Trane actuator assemblies and linkage rods, ensuring reliable torque transfer in variable air volume (VAV) and rooftop unit (RTU) applications. As a direct OEM replacement part, the ARM0058 eliminates the alignment issues common with universal hardware, maintaining the tight tolerances required for ASHRAE 90.1 compliant mechanical systems.

This heavy-duty linkage accessory is constructed for industrial-grade durability, providing a secure connection that prevents slippage during high-static operation. Whether you are performing a damper motor retrofit or a routine system overhaul, utilizing genuine Trane HVAC replacement parts like the ARM0058 ensures that your control sequences remain accurate and energy-efficient. Its robust design is optimized for the demanding cycles of commercial zone dampers and economizer sections.

• Perfect 0.38-inch Fit: Specifically machined for .38" diameter shafts, ensuring a zero-play connection between the actuator and damper blades.
• Industrial Durability: Built to withstand the constant mechanical stress of HVAC economizer linkage movements without deformation.
• Optimized Performance: Facilitates smooth, incremental airflow control to support advanced building automation strategies.
• OEM Compatibility: Guaranteed fit for a wide range of Trane RTU and commercial air handler models, reducing field modification time.

• Can this be used on a 1/2-inch shaft? No, this is precision-engineered for a .38" diameter crank arm interface and will not fit larger shafts.
• What applications is this crank arm suitable for? It is ideal for Trane damper assemblies, specifically in modulating zone controls and rooftop economizer linkages.
• Does it include the set screw? Most Trane ARM0058 kits include the necessary lockdown hardware, but verify existing hardware condition before installation.

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.