Lennox 31K97 - (31K9701) BX71 V-Belt, BX Section, 74 Inch Outside Circumference
The Lennox 31K97 (31K9701) BX71 V-Belt is a durable, high-performance belt engineered for HVAC systems and other belt-driven equipment that demands consistent and efficient power transmission. With a 74-inch outside circumference and a BX-section profile, this cogged V-belt is designed to handle higher torque loads in compact drive configurations.
Ideal for applications involving blowers, compressors, and fan motors, the BX71 belt delivers enhanced flexibility, superior traction, and longer service life, even in high-heat environments. The notched construction improves airflow around the belt, reducing internal temperature and wear during prolonged operation.
Technical Specifications:
- Part Number: 31K97 (31K9701)
- Model: BX71
- Belt Type: Cogged V-Belt
- Section: BX (Narrow, high-load profile)
- Outside Circumference: 74 inches
- Top Width: Approx. 0.66 inches
- Depth: Approx. 0.41 inches
- Material: Heat- and oil-resistant rubber with polyester tension cords
- Temperature Rating: Suitable for high-temperature HVAC environments
- Cogged profile provides increased flexibility for smaller pulley diameters
- Engineered for smooth, quiet operation and reduced vibration
- High-strength construction supports heavy-duty usage with minimal stretch
- OEM-grade quality ensures compatibility with Lennox and other commercial HVAC systems
- Maintains power transmission efficiency under variable speed and load conditions
- Air handler drive systems
- Blower and fan motors
- Condensing units and rooftop HVAC systems
- General-purpose industrial power transmission applications
The Lennox 31K97 BX71 V-Belt is trusted by HVAC professionals for reliable performance, reduced maintenance, and easy integration into both new installations and replacement scenarios. Count on this belt to deliver quiet, efficient, and long-lasting power transmission across a wide range of HVAC applications.
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