Overview
The Martin 60BS20 1-7/16 is a precision bored-to-size sprocket engineered for single-strand #60 roller chain drive systems. This finished bore sprocket features a 1-7/16-inch bore diameter, 20 teeth, and 3/4-inch pitch, making it suitable for direct shaft installation in low to moderate power applications. Manufactured from high carbon steel, the Martin 60BS20 delivers durability and reliable performance in conveyor systems, material handling equipment, and light industrial machinery.
Key Features
- Finished bore design with two set screws and keyway for quick shaft installation
- High carbon steel construction for strength and extended service life
- ANSI B29.1-1975 compliant for standardized performance
- Type BS bored-to-size format eliminates need for additional bushings or adapters
- Single-strand #60 roller chain compatibility
Technical Specifications
- Part Number: 60BS20 1-7/16
- Chain Size: #60 (3/4-inch pitch)
- Number of Teeth: 20
- Bore Diameter: 1-7/16 inch
- Outside Diameter: 5.185 inches
- Hub Diameter: 3-7/8 inches
- Material: High carbon steel
- Keyway: 3/8 x 3/16 inch
- Set Screws: 2 (3/8-16 x 3/8 inch)
- Length Through Bore: 1-1/4 inches
- Standard Compliance: ANSI B29.1-1975
- Weight: Approximately 3.6 lbs
Typical Applications
The Martin 60BS20 1-7/16 sprocket is commonly used in:
- Conveyor belt drive systems
- Material handling and packaging machinery
- Light industrial automation equipment
- Power transmission in low to moderate duty cycles
- Agricultural and farm equipment
Compatibility & Replacements
Compatible With
- #60 single-strand roller chain (3/4-inch pitch)
- Standard industrial shafts with 1-7/16-inch bore capability
- Martin and equivalent sprocket systems
- Low to moderate power motion control applications
Replaces / Drop-In Replacement For
The Martin 60BS20 1-7/16 is a direct replacement for other 20-tooth, 3/4-pitch #60 chain sprockets with a 1-7/16-inch finished bore. Verify compatibility with your system integrator or equipment manufacturer before ordering to ensure proper fit and function.
Works With
- #60 roller chain (standard industrial chain)
- 1-7/16-inch diameter shafts
- Keyway and set screw fastening systems
- Standard industrial motor and gearbox couplings
