Description
Overview
The York S1-028-12403-700 is a genuine OEM 1-groove variable sheave designed for use in York HVAC belt-drive blower and fan assemblies. Featuring a 1-3/8″ bore, this variable sheave allows technicians to fine-tune blower speed and airflow output by adjusting the effective pitch diameter — an essential capability for balancing air systems and optimizing equipment performance.
Key Features
- Genuine York OEM replacement part (SKU: S1-028-12403-700)
- 1-groove design for single V-belt drive configurations
- 1-3/8″ bore for precise shaft fitment
- Variable pitch design allows field adjustment of blower/fan speed
- Engineered for reliable power transmission in HVAC belt-drive systems
- Direct OEM replacement ensures proper fit and function
Applications
- York commercial and residential air handling units
- Belt-drive blower assemblies requiring speed adjustment
- Fan and blower systems using single-groove V-belt drives
Why Choose an OEM Sheave?
Using a genuine York variable sheave ensures compatibility with existing drive components, maintains manufacturer-specified airflow performance, and reduces the risk of premature belt or bearing wear. Variable sheaves are a critical tool for HVAC commissioning and air balancing, allowing precise RPM adjustment without replacing the entire drive assembly.
