Overview
The Dodge 112856 P34-8M-20-1610 HT is a Type A1F high-torque belt sprocket engineered for heavy-duty industrial power transmission applications. With 34 teeth, 8mm pitch, and 20mm belt width, this sprocket delivers consistent torque transfer in synchronous belt drive systems. The 1610 taper-lock bushing accommodation allows easy installation and bore customization from 1/2 to 1-11/16 inches. Built for demanding production environments, the HT series provides superior load capacity and longevity.
Key Features
- High-Torque (HT) design for heavy-load power transmission
- Type A1F specification—proven reliability in industrial machinery
- 34 grooves match standard HTD 8mm belt profiles
- Taper-Lock bushing system allows quick shaft installation and removal
- Bore range 1/2 to 1-11/16 inch accommodates multiple shaft sizes
- Consistent pitch diameter ensures precise belt tracking and minimal slippage
Technical Specifications
The Dodge 112856 sprocket meets exacting dimensional and performance standards for synchronous drive systems:
- Part Number: 112856
- Tooth Count: 34
- Pitch: 8mm
- Belt Width: 20mm
- Outside Diameter: 3.756 inches
- Pitch Diameter: 3.409 inches
- Face Width: 1.13 inches
- Bore Type: Taper-Lock (1610 bushing)
- Bore Diameter Range: 1/2 to 1-11/16 inch
- Series: HT250 (High Torque)
- Type: A1F
Typical Applications
The Dodge 112856 is used in a wide range of industrial drive systems requiring reliable synchronous transmission:
- Conveyor and material handling systems
- Packaging machinery and automated assembly lines
- Industrial pumps and compressors
- Woodworking and metalworking equipment
- OEM equipment requiring HTD 8M-20 profiles
- Power transmission retrofit and replacement projects
Compatibility & Replacements
Compatible With
- HTD 8mm pitch synchronous belts (8M-20 profile)
- Taper-Lock bushings (1610 series)
- Standard industrial synchronous belt drive systems
- Equipment designed for 34-tooth, 8mm-pitch sprockets
Replaces / Drop-In Replacement For
- Dodge P34-8M-20-1610 HT sprockets (OEM part 112856)
- Generic high-torque 34-tooth, 8mm-pitch synchronous sprockets
- Legacy power transmission sprockets rated for HTD 8M-20 belts
Works With
- HTD synchronous belt drive systems
- 1610 taper-lock bushing and shaft coupling systems
- Industrial machinery using 8mm-pitch, 20mm-width belt profiles
- Baldor-Dodge motor and drive product ecosystem

