Overview
The Martin 3020-2-13/16 taper bushing is a precision power transmission component manufactured by Martin Sprocket & Gear. This sintered steel bushing is engineered to mount taper-bushed pulleys, sheaves, sprockets, and other components securely on drive shafts. The split-taper design enables exceptional holding power while maintaining reduced mounting width, making it ideal for space-constrained industrial applications.
Key Features
- Sintered Steel Construction: Greater strength and wear resistance compared to plain carbon steel
- Split-Taper Design: Provides superior clamping force and prevents shaft slip
- Flush Mounted: Reduces hub assembly width and provides cleaner mechanical profile
- Keyed Design: Integral keyway prevents shaft rotation within the bushing
- ANSI/DIN Standards: Interchangeable with taper bushings from other manufacturers
- 3020 Series Rating: 24,000 in-lb torque capacity
Technical Specifications
The Martin 3020-2-13/16 taper bushing features the following dimensional and performance characteristics typical to the 3020 series:
- Bore Diameter: 2 13/16 inches (2.8125 in)
- Outer Diameter (Barrel Large End): 4.25 inches
- Bushing Length: 2 inches
- Material: Sintered powder steel
- Taper Angle: 8 degrees
- Torque Rating: 24,000 in-lb
- Bolt Circle Diameter: 4 inches
- Screw Specifications: 5/8-11 x 1-1/4 inch
- Number of Bolt Holes: 2
- Keyway Size: 5/8 x 5/16 inch (typical for 3020 series)
Typical Applications
The Martin 3020-2-13/16 taper bushing is used in a wide range of industrial equipment and machinery, including:
- Pulley and sheave assemblies on conveyor systems
- Sprocket mounting on drive shafts in power transmission systems
- Agricultural equipment and machinery
- Automotive and light equipment applications
- HVAC equipment and industrial fans
- Heavy-duty machinery requiring secure component mounting
Compatibility & Replacements
Compatible With
- Standard taper-bushed pulleys and sheaves (3020 series bore)
- Industrial drive shafts with 2 13/16-inch bore capacity
- Power transmission equipment designed for 3020-series bushings
- Conveyor systems and mechanical power distribution equipment
Replaces / Drop-In Replacement For
The Martin 3020-2-13/16 taper bushing is a direct replacement for OEM taper bushings of equivalent specifications. It is interchangeable with taper bushings meeting ANSI and DIN standards from other manufacturers of equivalent 2 13/16-inch bore capacity.
Works With
- 5/8-11 mounting bolts and setscrew hardware
- Standard taper-bushed components designed for 3020-series integration
- Industrial maintenance and retrofit applications requiring ANSI-compliant parts
