ProDirectional | Product Sheets
475-56-83
5″ SuperPack ProFlex Mud Motor Power Section
5″ SuperPack ProFlex downhole motor power section designed for high-torque directional drilling and stable RPM across wide flow
ranges.
ProDirectional | Product Sheets
500-56-83V
5″ SuperPack ProFlex and Ti-Flex Mud Motor Power Section
5″ SuperPack ProFlex downhole motor power section designed for high-torque directional drilling and stable RPM across wide flow
ranges.
The ProDirectional 475-56-83 is a 5-inch Superpack power section built for high-torque directional drilling, long laterals, and heavy WOB applications. Using our ProFlex transmission and HS88 elastomer system, this motor delivers predictable torque, high RPM stability, and extended stator life in demanding downhole conditions. Designed for directional drilling and MWD motor assemblies, the 475-56-83 provides consistent power transfer and reliable performance across a wide flow range.
Power Section Overview
The 475-56-83 is engineered to convert drilling fluid energy into controlled torque and rotational speed. It is optimized for applications requiring high load capacity, stable RPM, and predictable differential pressure behavior.
| Feature | Value |
| Power Section Model | 475-56-83 |
| Elastomer Type | HS88 |
| Transmission | ProFlex |
| Flow Range | 100 to 300 GPM |
| Speed Range | 102 to 306 RPM |
| Torque Slope | 2.352 ft-lb per psi |
| Maximum Torque | 3,968 ft-lb |
| Maximum Differential Pressure | 1,750 psi |
These operating ranges allow the tool to be tuned for curve, lateral, and high-load drilling, depending on flow rate and WOB.
Downhole Performance Characteristics
The 475-56-83 provides a linear torque response as differential pressure increases. This makes it ideal for:
High build rate assemblies
Extended lateral drilling
High WOB applications
Motor-assisted rotary drilling
Because the torque slope is 2.352 ft-lb per psi, operators get predictable torque delivery as surface pumps increase pressure. This allows directional drillers and MWD teams to control bit behavior without sudden power spikes that damage stators or BHA components.
Rotor & Stator Construction
Rotor Specifications
| Parameter | Value |
| Overall Length | 229.4 in |
| Head Length | 6.00 in |
| Major Diameter | 2.916 in |
| Eccentricity | 0.205 in |
Stator Specifications
| Parameter | Value |
| Overall Length | 242.6 in |
| Tube OD | 4.75 in |
| Tube ID | 3.75 in |
| Rubber | HS88 |
The HS88 elastomer is selected for temperature resistance, wear life, and torque stability in drilling fluids. Combined with ProDirectional’s fit and testing standards, this improves power section life compared to generic stators.
Motor Assembly Details
The 475-56-83 power section is built into a 5-inch Superpack motor using the ProFlex transmission.
| Parameter | Value |
| Motor Size | 5” Superpack |
| Transmission | ProFlex |
| Tool OD | 6.60 in |
| Bit Box | 4-1/2 REG |
| Bit-to-Bend Length | 60.6 in |
| Overall Length (no stator) | 122.5 in |
| Maximum WOB | 80,000 lbs |
| Max Overpull to Re-run | 263,215 lbs |
| Absolute Overpull | 669,318 lbs |
These ratings make the 475-56-83 suitable for high-load directional drilling, lateral drilling, and motor-driven RSS applications.
Why ProDirectional Power Sections Last Longer
Unlike generic motor power sections, ProDirectional builds and tracks every rotor and stator. Each 475-56-83 is:
Matched for optimal rotor-to-stator fit
Tested for differential pressure and torque
Tracked for run hours and performance
Supported by ProDirectional field and ROC teams
This ensures that when you deploy a 475-56-83, you get repeatable downhole performance, not just paper specs.
Typical Applications
The 475-56-83 is commonly used in:
Directional drilling in shale and tight formations
Long lateral wells
High-WOB build sections
Motor-driven rotary BHA designs
MWD and survey-intensive drilling programs
Its wide flow range and high torque capacity allow it to support both aggressive build rates and long horizontal drilling.
Performance Disclaimer
*Power section performance curves are for reference only. Published performance metrics are theoretical and based on ambient conditions using fresh water. Actual performance will vary depending on downhole conditions and rotor and stator fit. Operating above optimal differential pressure will reduce stator life. Optimal load power calculations are based on maximum RPM and optimal load torque. Information contained in this document is subject to change without notice.
*All data is provided as a general guide only and may not reflect final or accurate specifications. Users must confirm all details with our team before relying on this information for any operational, technical, or commercial decisions.
Get the 475-56-83 in Your BHA
If you are planning a directional drilling or MWD program that requires high torque,
high WOB capacity, and ProFlex transmission reliability, the 475-56-83 is built for the job.