Description
The Browning 1VM50X7/8 is a single-groove variable pitch sheave designed for adjustable V-belt drive applications in HVAC systems, fans, and light-duty mechanical power transmission equipment. This cast iron sheave features a 7/8" finished bore with keyway for secure shaft mounting and an outside diameter of 4.75 inches. Designed for use with 3L, 4L/A, and 5L/B belt sections, the adjustable pitch allows technicians to fine-tune drive ratios and belt speed for optimal system performance. VM series sheaves are commonly used on fractional horsepower motors and light-duty drives up to approximately 5 HP.
Key Features
- Single-groove variable pitch sheave compatible with 3L, 4L/A, and 5L/B V-belt sections.
- 7/8 inch finished bore with keyway for secure mounting on standard motor shafts.
- 4.75 inch outside diameter suitable for adjustable-speed V-belt drive systems.
- Adjustable pitch diameter range approx. 3.3"–4.1" (3L belts) and 3.7"–4.7" (5L/B belts) for speed tuning.
- Cast iron construction for durability, vibration damping, and long service life.
- Designed for light-duty applications up to about 5 HP including fans, blowers, and HVAC drives.
