Carrier 40RM500129 Motor Mount Rail 322057-301 Always check your model plate

Always check your model plate before installation

Confirm the shaft diameter is exactly 1 inch

ensuring a rigid

This 1-inch bore pillow block bearing serves as a direct OEM replacement for Source 1 and York units

Carrier 40RM500129 Motor Mount Rail 322057-301 Always check your model plateThe Carrier 40RM500129 Motor Mount Rail is a critical OEM replacement part engineered for high static packaged air handlers and fan coil units within the 40RM series and 40RU product lines. Built from heavy gauge galvanized steel, this HVAC motor mounting bracket provides the structural rigidity necessary to maintain precise fan motor alignment, which is essential for minimizing vibration and preventing premature bearing wear in commercial blowers.