Overview
The Martin 60BTB21H is a professional-grade taper-lock sprocket engineered for #60 roller chain systems. This Martin hardened taper-lock sprocket is designed for #60 chain (3/4″ pitch), making it ideal for industrial automation, conveyor systems, and power transmission equipment that demand reliable performance and minimal downtime.
Key Features
- 21 teeth and 5.426″ OD in hardened steel
- Uses industry-standard 2012 series taper bushing for secure shaft mounting
- Type B taper bushed design with 3.563 in hub diameter and 1-1/4 in length through bore
- Includes keyway for positive drive engagement
- Hardened teeth resist wear and extend service life in high-load applications
Technical Specifications
- Sprocket material: Steel
- Chain pitch: 3/4 inch
- Tooth count: 21 teeth
- Outside diameter (OD): 5.426 inches
- Pitch diameter: 5.033 inches
- Hub diameter: 3.563 inches
- Bore length: 1-1/4 inches
- Bushing type: 2012 taper-lock
- Chain type: ANSI roller chain
- Hub style: Type B (one side)
- Weight: 1.29 kilograms (approximately 2.8 lbs)
- Material finish: Hardened teeth
Typical Applications
The Martin 60BTB21H sprocket is used in:
- Industrial automation and motion control systems
- Conveyor belt drives and material handling equipment
- Power transmission machinery requiring dependable chain drive performance
- Equipment retrofit and modernization projects
- OEM and aftermarket replacement applications
Compatibility & Replacements
Compatible With
- #60 single-pitch roller chain (3/4″ pitch)
- 2012 taper-lock bushing systems
- ANSI standard roller chain drives
- Industrial conveyor and drive equipment using #60 chain
Replaces / Drop-In Replacement For
The Martin 60BTB21H directly replaces OEM Martin 60BTB21H units and other manufacturer equivalents with identical specifications (21-tooth, #60 chain, 2012 taper bushing). Always verify chain pitch and bushing size before ordering as a replacement.
Works With
- 2012 series taper-lock bushings (sold separately)
- #60 roller chain (0.750″ pitch)
- Standard keyway shafts
- ANSI-standard chain drives and industrial conveyor systems
