Overview
The Martin SH-1/2 quick disconnect bushing is a split-taper coupling component for rapid pulley, sheave, and sprocket mounting on drive shafts. This Martin SH quick disconnect bushing is made of ductile iron and is used for mounting a quick disconnect pulley, sheave, or sprocket on a drive shaft. Bushings are cylindrical parts used to mount pulleys, sheaves, sprockets, or other components to drive shafts for the transmission of mechanical power. Most bushings are split and have a tapered outside surface so they will clamp to the shaft when tightened against the tapered bore of the driven component.
Key Features
- Split-taper design allows quick disconnect without full shaft disassembly
- Keyway Size 3/8 x 1/16 in, finished bore with keyway
- High-strength ductile iron construction for durability and wear resistance
- Used in automobiles, construction equipment, agricultural machinery, and home appliances
- Standard set screw (1/4-20) for secure shaft retention
Technical Specifications
- Bushing series: SH
- Material: Ductile iron
- Keyway: 3/8 x 1/16 inch
- Flange outside diameter: 2.6875 inch
- Flange thickness: 0.4375 inch
- Bolt circle diameter: 2-1/4 inch
- Number of bolt holes: 3
- Set screw size: 1/4-20 x 1/4 inch
- Screw thread size: 1/4-20 inch
- Screw length: 1-3/8 inch
- Set screw torque: 108 in-lb
- Barrel diameter: 1.871 inch
- Barrel length: 0.875 inch
Typical Applications
The Martin SH-1/2 is suited for power transmission systems requiring rapid pulley or sprocket changes. Common applications include:
- Agricultural machinery and equipment
- Construction equipment drive systems
- Automotive accessory drives
- Industrial conveyor systems
- Machine tool spindle mounting
Compatibility & Replacements
Compatible With
- Martin SH-series pulleys and sheaves
- Standard drive shafts with taper bore mounting systems
- ANSI-standard power transmission components
- Shaft diameters matching 1/2-inch bore specification
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or equipment documentation before ordering, as quick disconnect bushings are specific to driven component taper specifications and shaft diameter.
Works With
- Martin belt and chain drive systems
- Standard ANSI/DIN pulley and sprocket lines
- Shaft-mounted couplings and adapters
- Fixed and loose pulley assemblies
