Overview
The Martin 3020 2-15/16 taper bushing is a precision mechanical component engineered for reliable shaft mounting and power transmission. This taper lock bushing in the 3020 Series features a 2-15/16 inch bore with a 3/4 x 3/8 inch keyway, designed for mounting pulleys, sheaves, sprockets, and other driven components on rotating shafts. Manufactured from steel, it delivers consistent performance across industrial automation, machinery drive systems, and motion control applications.
Key Features
- Flush mounted for reduced mounting width with split taper for tight clamp to shafts
- Tapered non-flanged split design utilizes screws to tighten on the shaft, providing excellent clamping force
- Keyed to the shaft to prevent rotation and interchangeable with taper bushings from various manufacturers
- Steel construction for durability and wear resistance
- Used on sprockets, sheaves and pulleys to increase clamping force over standard bored-to-size products
Technical Specifications
This Martin 3020 2-15/16 taper bushing meets industry standards for shaft-mounted power transmission components. Key dimensional and performance characteristics include the following specification table.
Typical Applications
The Martin 3020 taper bushing is used in automobiles, construction equipment, agricultural machinery, and home appliances. It is ideal for manufacturing environments requiring increased clamping force on sprockets, sheaves, and pulleys. Common uses include conveyor systems, fan drives, pump coupling, compressor mounting, and any rotating equipment requiring positive shaft engagement without slipping.
Compatibility & Replacements
Compatible With
- 3020 Series taper bushed pulleys
- 3020 Series taper bushed sheaves
- 3020 Series taper bushed sprockets
- Standard drive shaft systems (hollow and solid)
- NEMA industrial motor frames
Replaces / Drop-In Replacement For
The Martin 3020 2-15/16 replaces other 3020 Series 2-15/16 inch bore taper bushings meeting the same bore, keyway, and mounting specifications. It is interchangeable with taper bushings from various manufacturers having identical 2.938 inch bore and 3/4 x 3/8 inch keyway dimensions. Verify specific mounting requirements with your system integrator before ordering.
Works With
- 3020 Series taper lock pulleys and sheaves
- Standard industrial keyways (3/4 x 3/8)
- Machine tool spindles and headstocks
- ANSI-standard drive components


















