Overview
The Martin 3020 1-7/8 taper bushing is an industrial-grade shaft mounting component manufactured from sintered powder steel. It is flush mounted for reduced mounting width and has a split taper for a tight clamp to shafts. The bushing is made of sintered powder steel for greater strength and wear resistance than plain carbon steel. This taper lock design provides reliable power transmission in mechanical drive systems across automation, construction, agricultural, and industrial applications.
Key Features
- Used for mounting a taper bushed pulley, sheave, or sprocket on a drive shaft
- Sintered steel construction for superior durability and load capacity
- Flush mounted for reduced mounting width
- Keyed to the shaft to prevent the shaft from rotating in the bushing, and it is interchangeable with taper bushings from various manufacturers
- Standard 8-degree taper angle for consistent seating and clamping force
- Meets industry standards for taper lock bushing interchangeability
Technical Specifications
- Series: Martin 3020
- Bore Size: 1-7/8 inches (1.875″)
- Design Type: Split Taper Lock Bushing
- Material: Sintered Powder Steel
- Taper Angle: 8 degrees
- Mounting Style: Flush mounted (no protruding flange)
- Keyway: Included for shaft keying
- Set Screw Configuration: Tightens against shaft key for secure fit
Typical Applications
This taper bushing is used in automobiles, construction equipment, agricultural machinery, and home appliances, among others. Common uses include:
- Belt and pulley drive systems
- Conveyor sheave mounting
- Sprocket and chain drive assemblies
- Industrial fan and motor coupling
- Machinery shaft power transmission
Compatibility & Replacements
Compatible With
- Martin pulley and sheave products
- Standard taper-bushed pulleys from major manufacturers
- Drive shafts with standard keyways
- Industrial power transmission systems using 8-degree taper angle bushings
- Belt and chain drive assemblies
Replaces / Drop-In Replacement For
The Martin 3020 1-7/8 taper bushing is interchangeable with equivalent 1-7/8″ bore taper lock bushings from other manufacturers that follow standard 8-degree taper specifications. Verify bore diameter and taper angle compatibility before ordering.
Works With
- Martin pulleys and sheaves in equivalent sizes
- Standardized taper-bushed power transmission components
- Industrial drive systems using mechanical power transmission
- Standard mechanical assembly methods without special tools
















