Lennox 31K74 - (31K7401) Blower Shaft, 1" Diameter x 18" Length, 1045 or C45 Steel
Upgrade or repair your HVAC system with the Lennox 31K74 blower shaft—an OEM-grade replacement built for strength, performance, and reliability. This precision-machined shaft is crafted from high-quality 1045 or C45 medium carbon steel, making it the ideal choice for demanding blower motor applications where durability and dimensional accuracy are essential.
Product Specifications:
- Part Number: 31K74 (Supersedes 31K7401)
- Material: 1045 or C45 Medium Carbon Steel
- Diameter: 1 inch
- Length: 18 inches
- Finish: Precision ground for smooth rotation and reduced vibration
- Compatibility: Fits select Lennox air handlers, furnaces, and blower assemblies
- High Strength Steel: 1045/C45 steel offers excellent tensile strength and hardness, allowing the shaft to handle the stresses of continuous blower operation without bending or deforming.
- Precision Machining: Each shaft is ground to tight tolerances, ensuring perfect balance within the blower wheel assembly. This minimizes noise and wear, extending the life of bearings and motor components.
- Versatile Fit: Designed to match original Lennox specifications, this shaft is an exact fit for compatible HVAC models. It may also be used in custom blower setups requiring a 1" x 18" shaft.
- Corrosion Resistance: The surface is treated for improved resistance to oxidation and moisture exposure, making it suitable for both residential and commercial indoor environments.
- Easy Installation: Straightforward to install with standard blower hubs and set screws, reducing system downtime during maintenance.
- Lennox residential and commercial air handler units
- Replacement for worn or corroded blower shafts
- Custom or OEM blower assemblies in HVAC systems
Ensure smooth, efficient air circulation and restore factory-grade performance to your HVAC system with the Lennox 31K74 blower shaft. Whether you're servicing a system or assembling a new air handling unit, this robust and reliable shaft delivers the durability and exact fit required by HVAC professionals.
Order now from Beenimax.com — your trusted source for genuine Lennox replacement parts. Fast shipping and expert support available.