Overview
The Martin 120623 QD Quick Disconnect Bushing J-3-3/8 is a cast iron split-taper bushing engineered for reliable, repeatable mounting of sheaves, sprockets, and other power transmission components. Built to ANSI standards, this J-series QD bushing delivers the precision fit and durability required in industrial automation, manufacturing, and mechanical power transmission applications. The quick-disconnect design enables rapid component interchange without removing shafts.
Key Features
- Split-taper quick-disconnect design for convenient mounting and removal
- Cast iron construction for strength and extended service life
- ANSI-standard J-series geometry with proven interchangeability
- 3.375-inch bore accommodates standard shaft sizes in common industrial applications
- Reversible mounting orientation allows flexible installation configurations
- Standard capscrew interface for secure, repeatable engagement
Technical Specifications
The Martin J-3-3/8 QD bushing is built to exacting tolerances that ensure drop-in compatibility with OEM and aftermarket sheaves and sprockets. Its tapered bore and locking mechanism create a solid mechanical bond while the quick-disconnect feature allows rapid assembly and disassembly without tooling or shaft removal.
Typical Applications
- Conveyor and material handling belt drive systems
- Fan and blower motor connections
- Pump and compressor drive couplings
- Machinery requiring frequent component replacement or maintenance
- Industrial automation and process equipment sheave mounting
Compatibility & Replacements
Compatible With
- Martin J-series sheaves and sprockets with QD-compatible hubs
- Standard industrial motors with shaft diameters up to 3-3/8 inch
- ANSI-standard split-taper bushing applications
- Reverse or conventional mounting orientations
Replaces / Drop-In Replacement For
- Dodge 120623 J-3-3/8 QD Bushing
- Browning J 3-3/8 QD Bushing
- TB Woods J338 QD Bushing
Works With
- ANSI B29.1 standard sheave and sprocket designs
- ISO 9001 certified power transmission components
- Industry-standard cap screw fastening systems (5/8-11 nominal)
- Conventional and reverse mounting configurations on driven equipment
