Overview
The Dodge 117125 is a stock bore taper-lock bushing from the 3020 series, engineered for secure mechanical power transmission in industrial machinery and drive systems. This sintered steel bushing features an 8-degree taper and flush-mounted design that eliminates wobble and provides repeatable positioning in motor-to-shaft and coupling applications.
Key Features
- Flangeless, compact design for clean installation with no protruding parts
- 8-degree taper geometry ensures secure locking without slippage
- Sintered steel construction rated for 24,000 in-lbf peak torque
- Stock bore (finished) with 5/8 × 5/16 inch keyway pre-machined
- Two bolt-hole design with 5/8 × 1-1/4 inch installation screws
- Low installation torque (800 in-lbf) simplifies assembly without special tools
Technical Specifications
- Bore Diameter: 2-7/16 inches (2.4375 inches actual)
- Bore Length: 2.0 inches (overall axial length)
- Barrel Outside Diameter: 4-1/4 inches
- Hub Diameter: 5.63 inches
- Keyway Size: 5/8 × 5/16 inch
- Taper Angle: 8 degrees
- Bolt Circle: 4 inches
- Number of Bolts: 2
- Installation Torque: 800 in-lbf
- Rated Torque (Peak): 24,000 in-lbf
- Material: Sintered Steel
- Weight: 4.4 lbs
- Series: 3020 Taper-Lock Bushing
Typical Applications
The Dodge 117125 is commonly used in:
- Motor-to-shaft coupling in conveyor drive systems
- Pulley hub locking on industrial belt drives
- Flexible coupling applications in pump and fan assemblies
- Gearbox input and output shaft mounting
- Light-duty machinery requiring repeatable shaft attachment
Compatibility & Replacements
Compatible With
- All 3020 series taper-lock hubs and couplings
- Dodge flexible couplings and drive components
- Standard 2-7/16 inch finished shaft applications
- Motor flanges and pump coupling hubs with taper-lock design
Replaces / Drop-In Replacement For
- Previous Dodge 3020 × 2-7/16″ KW stock bore units (direct replacement)
- This part number supersedes legacy 117125 revisions
Works With
- Standard metric and imperial 2-7/16″ bore hub assemblies
- 5/8 × 5/16 inch keyway shafts and coupling hubs
- Taper-lock removal tools and jackscrews (no special puller required)
- Light-to-moderate duty power transmission systems
