Overview
The Martin M 5 7/16 QD bushing is a standard quick-detachable bushing engineered for reliable power transmission in industrial machinery. QD bushings deliver fast mounting and removal without disturbing connected equipment, making them essential for conveyor systems, motor-driven sheaves, and sprocket applications requiring frequent maintenance or belt tensioning adjustments.
Key Features
- Quick-detachable (QD) design for rapid assembly and disassembly
- Supports both conventional and reverse mounting orientations
- Tapered cone grip provides secure shaft coupling without keyway slippage
- Cast iron construction for durability in high-cycle applications
- Industry-standard sizing compatible with common sheave and sprocket hubs
Technical Specifications
The Martin M 5 7/16 features a 5-7/16″ bore diameter sized for mid-range shaft applications. Standard features include a 6-1/2″ barrel diameter, 9″ flange diameter, and 6-3/4″ overall length. The bushing includes four bolt holes with 3/4-10 x 6-3/4″ pull-up screws, a 1/2″ x 1″ standard keyway, and rated torque capacity of 85,000 in-lb. All components are finished cast iron.
Typical Applications
- Conveyor belt drive systems and idler pulleys
- Motor-to-sheave coupling in power transmission
- Sprocket hub installations requiring tool-free quick changes
- Industrial machinery with scheduled maintenance intervals
- Equipment operating under variable load or speed conditions
Compatibility & Replacements
Compatible With
- Martin QD sheaves and sprockets with matching bore specifications
- Standard 5-7/16″ diameter shafts with 1/2″ x 1″ keyways
- Industrial belt and chain drive systems
- Power transmission equipment requiring tapered cone bushings
Replaces / Drop-In Replacement For
Verify compatibility with your original equipment manufacturer (OEM) documentation. The Martin M 5 7/16 is a standard catalog bushing; confirm hub bore diameter and keyway dimensions match before ordering.
Works With
- Martin QD sheaves (all standard bores)
- Martin QD sprockets and weld-on hubs
- Belt and chain drive assemblies
- Multi-bushing conveyor pulley systems
