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Mud Lubricated Motors

The Same Predictable Performance and Extreme Reliability You've Come to Expect - On a New Platform.

       

Continual Improvement

Dynomax strives to meet the specific needs of our clients – every product line is designed with the customer in mind.

Our Mud Lubricated Motors are ideal for remote locations with multiple runs between services.

Motor Spec Sheets

The New DynoMax mud lubricated bearing assembly offers an additional option for directional drillers. Utilizing the same driveshaft and adjustable assembles as our oil sealed bearing assemblies, this Bearing Pack features a rugged design that is also quick and easy to service.


High Torque, High Flow, High Axial Capacity, this pack is designed to handle anything the industry can throw at it. Whether drilling a Vertical, Curve, Lateral, or doing it all in one run this motor is ready for the challenge.


Currently available in sizes from 4-3/4” (121mm) to 11-1/4” (286mm)

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Downloads

DYNOMAX MUD LUBRICATED MOTOR BROCHURE Download PDF


Mud Lubricated Motor Specifications

Name OD [in] Bit Size Range [in]
 Bit Box Connection Dynamic Bearing Load [lb] Static Bearing Load [lb] Overpull for Rerun [lb] Absolute Overpull [lb] Bit to Bend - Adjustable [in] Bit to Bend - Fixed [in]
4.75 in MUD LUBE 4.75 5.625 6.75 3-1/2 REG 49,500 103,500 260,700 434,500 55.6 47.0
5.25 in MUD LUBE 5.25 6.250 7.875 3-1/2 REG 60,730 124,336 231,000 462,000 57.5 47.0
6.5 & 6.75 in MUD LUBE 6.56 7.875 9.875 4-1/2 REG 94,460 425,874 376,900 628,200 67.87 52.98
7 in MUD LUBE 7.15 8.5 9.875 4-1/2 REG 100,357 355,612 432,800 721,400 66.7 54.6
8 in MUD LUBE 8.06 9.875 12.25 6-5/8 REG 145,951 534,312 542,500 904,100 74.9 60.3
9.62 in MUD LUBE 9.63 12.25 17.5 6-5/8 or 7-5/8 REG 188,513 1,092,750 721,400 1,202,300 87.3 87.3
11.25 in MUD LUBE 11.25 16 36 7-5/8 REG 232,226 1,202,590 1,065,400 1,775,700 94.5 N/A


Name OD [mm] Bit Size Range [mm]
 Bit Box Connection Dynamic Bearing Load [daN] Static Bearing Load [daN] Overpull for Rerun [daN] Absolute Overpull [daN] Bit to Bend - Adjustable [m] Bit to Bend - Fixed [m]
4.75 in MUD LUBE 121 143 171 3-1/2 REG 22,000 46,000 116,000 193,300 1.14 1.18
5.25 in MUD LUBE 131 159 200 3-1/2 REG 27,000 55,300 102,800 205,500 1.46 1.18
6.5 & 6.75 in MUD LUBE 167 200 251 4-1/2 REG 42,020 189,440 167,650 279,440 1.72 1.35
7 in MUD LUBE 182 216 251 4-1/2 REG 44,640 158,180 192,520 320,890 1.69 1.39
8 in MUD LUBE 205 251 311 6-5/8 REG 64,920 237,670 241,320 402,160 1.9 1.53
9.62 in MUD LUBE 244 311 445 6-5/8 or 7-5/8 REG 83,850 486,080 320,890 534,810 2.22 2.22
11.25 in MUD LUBE 286 406 914 7-5/8 REG 103,300 534,940 473,910 789,870 2.4 N/A


Benefits

  • Reduce Inventory – The Mud Lube platform is completely interchangeable with our existing Oil Sealed Bearing Packs. Have the option of running either Oil Sealed or Mud Lubricated with the same Driveshaft, Adjustable Assembly, and Power Sections!
  • Eliminate Seal Failures – with no rotary seals this bearing pack has virtually no temperature or mud limitations.
  • Reduced Service Times – our innovative design allows for a quick and straightforward service, allowing our customer to get more out of each pack.


Features 

  • Custom designed thrust stack maximizes axial load capacity
  • Removable nozzle in order to tune flow bypass rates to be optimal for each run, tool can remain built when changing nozzel size
  • High Capacity Radial Bearings manufactured with tungsten carbide for extreme life
  • Large Internal Bore allows for use of High Flow Power Sections
  • Easily accessible choke nozzle allows you to tune your bypass rates to meet the needs of your BHA
  • High Strength Mandrel with Double Shouldered Internal Connections throughout for maximum torque capacity
  • Detailed Service Documentation helps technicians easily and quickly make calls on replacing or reusing components – no matter what your location, allow our experience to work for you!

Dynomax Mud Lubricated Bearing Packs have been used successfully across three continents and in a wide range of drilling conditions.

They provide the same reliability and performance our Customers have come to expect from all Dynomax Products.



Existing customers

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