Overview
The Martin P808M50-SF is a solid-type, DF-1 construction high-torque belt drive sprocket designed for synchronous HTD (High Torque Drive) belt systems. This 80-tooth sprocket operates at 8mm pitch and accommodates 50mm belt width, making it suitable for medium to high-load industrial drive applications including conveyors, material handling, and precision machinery requiring non-slip power transmission.
Key Features
- Non-slip toothed drive requiring no lubrication, with wide speed range and greater efficiency plus quieter operation than chain drives
- QD bushed bore design with adjustable bore diameter from 1/2 to 2-15/16 inches
- Double flange construction with 2-5/8 inch face width
- Cast iron construction for durability in high-speed and high-torque environments
- Compatible with HTD, RPP, and RPP Plus belt systems
Technical Specifications
- Number of teeth: 80
- Belt pitch: 8mm
- Belt width: 50mm
- Outside diameter: 7.966 inches
- Pitch diameter: 8.02 inches
- Face width: 2-5/8 inches
- Flange outside diameter: 8.326 inches
- Length through bore: 2 inches
- Bore type: QD bushed, adjustable 1/2 to 2-15/16 inches
- Weight: 16.00 lbs
- Material: Cast iron
- Bushing series: SF
Typical Applications
- Conveyor systems and material handling equipment
- Industrial pump and fan drives
- Precision machinery requiring synchronized timing
- Printing, packaging, and automation equipment
- High-speed motor-driven applications demanding smooth, quiet operation
Compatibility & Replacements
Compatible With
- HTD (High Torque Drive) belts
- RPP (Rubber Power Plus) belts
- RPP Plus belts
- Hawk PD belts
- Standard HTD 8mm-pitch synchronous belt systems
- QD bushed bore motor shafts and drive shafts
Replaces / Drop-In Replacement For
- TB Woods P808M50 (functionally equivalent HTD sprocket)
- Previous Martin P808M50 generations without SF bushing
- Verify compatibility with your system integrator before ordering.
Works With
- All 8mm HTD belt systems and synchronous drive platforms
- QD bushing adapters and tapered bushings (sized to 1/2 to 2-15/16 inch bore range)
- Standard industrial motor shafts and drive equipment compatible with HTD synchronous timing
