Source1 2812385700 Variable Sheave 1 Groove 0.785 Inches Bore

Product Description

The SOURCE1 2812385700 is a variable sheave designed for use in HVAC air handling and fan systems. It features a single groove and a 0.785 inches bore, making it a direct-fit component for a range of residential and commercial HVAC equipment. Sheaves are a critical part of any belt-driven blower or fan assembly. They work by connecting the motor shaft to the blower shaft through a V-belt, transferring rotational power and allowing technicians to adjust fan speed and airflow output. A variable sheave gives HVAC technicians even greater control, allowing for pitch diameter adjustments without swapping out the entire pulley. This makes system balancing and airflow tuning far more efficient during installation and maintenance. The SOURCE1 2812385700 is manufactured to meet original equipment specifications, ensuring a seamless fit on compatible York, Coleman, and other affiliated brand systems. Technicians working on units such as the 1FF0114, 1HA0459, and 1HA0451 will find this sheave a reliable OEM replacement. Proper sheave and belt matching is essential for maintaining correct drive ratios, minimizing belt wear, and preventing motor overload. Using a correctly sized variable sheave also helps maintain system static pressure and airflow within design parameters. Whether you are replacing a worn sheave during a preventive maintenance visit or restoring a unit to proper airflow performance, the SOURCE1 2812385700 provides a dependable, specification-matched solution. At 1.425 pounds, it is a compact and lightweight component that is easy to handle and install in tight mechanical spaces. HVAC technicians, building engineers, and service contractors will appreciate the straightforward drop-in compatibility and the confidence that comes with an OEM-grade part.

• Variable pitch design allows for airflow and speed adjustments without full sheave replacement
• Single groove configuration with a 0.785 inches bore for precise shaft fitment
• Manufactured to OEM specifications for reliable fit and performance on compatible York and affiliated brand equipment

Product Highlights

The SOURCE1 2812385700 variable sheave delivers dependable, OEM-grade belt drive performance for HVAC blower and fan systems. Its adjustable pitch design gives technicians the flexibility to fine-tune airflow and system pressure during service or installation.

Product Information

Standard Information

• Brand: SOURCE1
• Manufacturer Part Number: 2812385700

Technical Specifications

• Product Type: Sheave
• Feature: Variable
• Number of Grooves: 1
• Bore Size: 0.785 inches
• Length: 4.1 inches
• Width: 4.05 inches
• Height: 2.2 inches
• Weight: 1.425 pounds