Description
Product Overview
The CMFG BK28-3/4 V‑belt pulley is precision‑cast from high‑grade cast iron, delivering exceptional strength and static balance. With an outside diameter of 2.95 inches and a single groove profile, it accommodates standard 4L/A and 5L/B V‑belts. The fixed 3/4 inch bore ensures a secure fit on shafts, while the robust construction resists deformation under heavy loads, making it ideal for compressors, motors, and other power‑transmission devices.
Usage
Designed for industrial and material‑handling environments, this pulley excels in applications such as air compressors, conveyor systems, and heavy‑duty motor drives. Its reliable performance under continuous operation reduces downtime and maintenance costs. 
Why Choose Us
CMFG combines decades of engineering expertise with rigorous quality control to deliver pulleys that meet exacting standards. Each unit undergoes static balance testing and dimensional verification, ensuring consistent performance across batches. Our commitment to durability is backed by a one‑month worry‑free return policy, giving you confidence in every purchase.
Key Features
- Cast iron construction for superior strength and wear resistance
- Fixed 3/4″ bore provides a secure, slip‑free fit on shafts
- Single groove design compatible with standard 4L/A and 5L/B V‑belts
- Static balanced to minimize vibration and extend belt life
- Ideal for compressors, motors, conveyors and other power‑transmission equipment
FAQ
What belt profiles are compatible with this pulley?
The pulley is designed for standard 4L (also known as “A”) and 5L (“B”) V‑belt profiles, providing versatile fit for many industrial applications.
Can this pulley be used on variable speed drives?
Yes, its static‑balanced design minimizes vibration, making it suitable for variable speed drives where smooth operation is critical.
Is the bore size fixed or adjustable?
The bore is a fixed 3/4 inch, ensuring a secure, non‑slipping connection to compatible shafts.
What is the return policy for this product?
CMFG offers a smooth, worry‑free return service within one month of purchase if the pulley does not meet your expectations.
How does cast iron benefit the pulley’s performance?
Cast iron provides high tensile strength, excellent wear resistance, and superior damping of vibrations, extending the life of both the pulley and the belt.
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