Overview
The Dodge 120435 quick disconnect bushing is a precision-engineered SK-type tapered bushing designed for rapid shaft coupling and disconnection in industrial power transmission applications. Manufactured from ductile iron with a sintered steel insert, this QD bushing provides secure grip and repeatable engagement without lubrication or anti-seize compounds.
Key Features
- SK-type bushing with 4-degree angled taper for easy on/off operation
- Quick disconnect (QD) design enables rapid equipment changeovers and maintenance
- Ductile iron and sintered steel construction ensures durability in demanding applications
- No lubrication required on tapered bore surfaces
- Three-bolt flanged mount with 3-5/16″ bolt circle for secure installation
- Industry-standard keyway configuration prevents shaft rotation
Technical Specifications
- Bore Diameter: 1.875 inches (47.625 mm)
- Bore Length: 1.880 inches (47.752 mm)
- Barrel Diameter: 2.81 inches
- Hub Diameter: 4-3/4 inches
- Flange Diameter: 3-7/8 inches
- Flange Thickness: 1/2 inch
- Overall Length: 1.88 inches
- Keyway: 1/2″ × 1/4″
- Bolt Circle Diameter: 3-5/16 inches
- Number of Bolt Holes: 3
- Bolt Size: 5/16-18 × 2 inches
- Installation Torque: 180 in-lb
- Rated Torque Capacity: 7000 lb-in
- Taper Angle: 4 degrees
- Material: Ductile iron body with sintered steel insert
Typical Applications
The Dodge 120435 bushing is commonly used in:
- Variable-speed coupling systems requiring frequent disconnect
- Pump and motor shaft coupling in renewable energy and industrial equipment
- Gearbox mounting and alignment applications
- Production line conveyor systems with equipment changeover requirements
- Multi-spindle machinery where quick replacement of rotating components is necessary
Compatibility & Replacements
Compatible With
- Dodge industrial QD bushing hubs and shafts with matching SK bore sizes
- Tapered shaft coupling systems rated for 7000 lb-in maximum torque
- Flanged mounting brackets with 3-5/16″ bolt circle spacing
- Standard industrial motor and gearbox output shafts (1.875″ bore)
Replaces / Drop-In Replacement For
- Verify specific replacement compatibility with the original equipment manufacturer specifications before ordering. This unit is a standard SK-type Dodge QD bushing; however, tapered bore bushings require precise bore diameter matching.
Works With
- Dodge PowerGrip and other industrial quick-change coupling systems
- SKF, NSK, and other bearing/bushing manufacturers’ compatible tapered bore hubs
- Standard torque wrenches and assembly tools for 180 in-lb tightening specifications
- Maintenance protocols requiring no lubrication on tapered surfaces
