Overview
The Martin SDS 2 quick disconnect bushing is a precision-engineered power transmission component designed for mounting pulleys, sheaves, sprockets, and other driven components onto drive shafts. This SDS 2 model features ductile iron construction and a tapered split design that provides strong, reliable clamping without keyway machining requirements for standard applications. Martin Sprocket & Gear, a leader in power transmission products for over 70 years, engineers these bushings to ANSI standards for dependable performance across industrial, OEM, and maintenance applications.
Key Features
- Tapered split design enables strong clamping grip on shaft without conventional keyways
- Finished bore: 2.0000″ diameter for direct mounting compatibility
- Ductile iron material provides superior strength and wear resistance compared to plain cast iron
- Quick disconnect design allows pulley or sprocket removal without removing shaft
- Set screw and bolting system secures bushing with 108 in-lbs torque specification
- Standard ANSI-compliant construction suitable for replacement and OEM applications
Technical Specifications
- Bore Diameter: 2.0000 inches
- Flange Outside Diameter: 3.1875 inches
- Length Through Bore: 1.3125 inches
- Barrel Diameter: 2.1875 inches
- Barrel Length: 0.875 inches
- Flange Thickness: 0.5 inches
- Material: Ductile Iron
- Bushing Style: SDS (Quick Disconnect)
- Set Screw Size: 1/4″-20 X 1/4″
- Bolt Circle Diameter: 2-11/16 inches
- Number of Bolt Holes: 3
- Screw Torque: 108 in-lbs
- Screw Thread Size: 1/4″-20 inches
- Screw Length: 1-3/8 inches
Typical Applications
The Martin SDS 2 bushing is ideal for industrial machinery, conveyor systems, agricultural equipment, automotive drivetrains, construction equipment, and general power transmission systems where quick-change pulley or sprocket mounting is required. The tapered split design provides reliable torque transmission without slip, making it suitable for both light and moderate-duty applications.
Compatibility & Replacements
Compatible With
- Martin sheaves and sprockets with SDS bushing bores
- Standard ANSI-compliant drive shafts (2.0″ nominal bore)
- Power transmission systems using quick-disconnect mounting
- OEM and replacement applications in industrial machinery
Replaces / Drop-In Replacement For
The Martin SDS 2 is the direct standard replacement for existing SDS 2 applications. Verify OEM part number compatibility with your equipment documentation before ordering. Martin maintains consistent bore, flange, and fastening specifications across the SDS line for seamless substitution.
Works With
- Martin power transmission catalog products (sheaves, sprockets, belts)
- Standard tapered keyway systems (optional keyway finishing available)
- Industrial bolt assemblies with 1/4″-20 thread fasteners
- ANSI-standard shaft sizing and mounting procedures
