Description
The Lau 02694005 (Model DD11-7A) is a precision-engineered direct drive blower wheel designed for reliable, efficient airflow in a wide range of HVAC and air handling applications. Built to Lau’s exacting standards, this convex double inlet wheel delivers consistent performance and is a trusted choice for OEM replacements and new installations alike.
Key Specifications
- Diameter: 11-3/4″
- Width: 7-1/8″
- Bore: 1/2″
- Maximum RPM: 1,550
- Rotation: Clockwise (CW)
- Inlet Type: Double Inlet
- Blade Profile: Convex
- Drive Type: Direct Drive
- Model: DD11-7A
- SKU: 02694005
Product Highlights
- Double inlet design maximizes airflow volume and efficiency for its compact footprint
- Convex blade profile provides smooth, quiet air movement with reduced turbulence
- Direct drive configuration eliminates belt and pulley maintenance, simplifying installation and upkeep
- 1/2″ bore accommodates standard direct drive motor shafts for easy drop-in replacement
- 1,550 max RPM rating ensures compatibility with a broad selection of direct drive blower motors
- Clockwise (CW) rotation — confirm motor shaft rotation before installation
- Durable construction built to withstand continuous duty HVAC operation
Typical Applications
- Residential and light commercial air handlers
- Fan coil units
- HVAC blower assemblies requiring direct drive wheel replacement
- OEM equipment using Lau DD-series blower wheels
Installation Notes
Verify shaft diameter, rotation direction, and unit housing clearances before installation. The 1/2″ bore is designed for direct drive motor shafts; ensure the replacement motor’s shaft matches this specification. Always confirm CW rotation matches your motor’s output shaft direction when viewed from the drive end.
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