Overview
The 2-groove 3V V-belt sheave 4.12″ OD with QD/TB bushing is a precision-manufactured industrial pulley engineered for dependable power transmission across light-to-medium duty applications. Cast iron construction provides durability and thermal stability in demanding environments. The quick-detachable (QD) bushing system eliminates the need for set screws, allowing rapid shaft changes without specialized tools—reducing downtime and maintenance complexity.
Key Features
- 2-Groove Design: Accommodates dual 3V belts for distributed load and improved belt tracking
- Quick-Detachable Bushing: Tool-free installation and removal; compatible with standard SH-type QD hubs
- Cast Iron Construction: Heat-resistant, corrosion-resistant base material suitable for industrial environments
- Precise Groove Profile: Optimized 3V belt section grooves for minimum slip and maximum power transmission efficiency
- 4.12″ Outside Diameter: Compact size for space-constrained installations and moderate speed ratios
Technical Specifications
- Belt Type: 3V (Narrow Notch V-Belt)
- Number of Grooves: 2
- Outside Diameter (OD): 4.12 inches
- Bushing Type: QD (Quick-Detachable) / TB
- Material: Cast Iron
- Belt Section: 3V (0.375″ pitch)
- Bushing Compatibility: SH Bushing (standard QD adapter)
Typical Applications
- HVAC and ventilation fan drives
- Conveyor and material handling systems
- Machine tool spindle drives
- Pump and compressor applications
- Industrial motor-to-load coupling where 3V belts are specified
- Replacement pulley in existing drive systems requiring minimal downtime installation
Compatibility & Replacements
Compatible With
- 3V V-belt drive systems (standard narrow-notch section)
- QD/SH quick-detachable bushing hubs and adapters
- Industrial fractional and integral horsepower motors
- Standard drive frame structures requiring 4.12″ OD pulleys
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or OEM documentation before ordering. This sheave matches industry-standard 2-groove 3V 4.12″ OD specifications commonly manufactured by Browning, Martin, TB Woods, and other industrial pulley producers. Confirm bore adapter and bushing type match your existing installation.
Works With
- 3V narrow-notch V-belts
- Quick-detachable (QD) bushing systems and adapters
- Standard industrial drive systems operating at moderate speeds
- Taper-lock and fixed-bore alternatives where QD bushing is not required
