M6 Short Bit-to-Bend Oil Sealed Bearing Assembly
M6 Short Bit-to-Bend Oil Sealed Bearing Assembly
M6 Mud Motor
Oil Sealed Reliability and Controllable Fluid Bypass
The WZL M6 oil sealed bearing assembly gives drillers high weight-on-bit and load capacity alongside customizable bypass control for precise directional drilling. This workhorse set the bar for oil sealed drilling motors long ago and continues to perform on rigs in every corner of the world.
Additionally, when equipped with an optional pin-down mandrel and straight housing, the WZL M6 oil sealed bearing assembly gives Rotary Steerable System (RSS) drillers high weight-on-bit and load capacity alongside customizable bypass control for precise directional drilling.
Our small-diameter M6 oil sealed motors have also proven successful in worldwide coil tubing drilling and workover operations.
Clean corrosion resistance
- Oil sealed bearing assembly keeps drilling fluid and debris out of internal components
- Low-alloy steel construction
- Tungsten-carbide corrosion resistant coatings
- Titanium driveshaft and all-metal power section options further safeguard motor from harsh chemicals
Failsafe design
- Enhanced output mandrel incorporates bending stress relief and internal safety catch
- Flow restrictor design and location reduces risk of mandrel connection deformation
Upgrade existing M5 inventory
- Owners of the M5 can benefit from the enhanced features of the M6 with our M5+ upgrade package
- Contact us for complete details
Clean corrosion resistance
- Oil sealed bearing assembly keeps drilling fluid and debris out of internal components
- Low-alloy steel construction
- Tungsten-carbide corrosion resistant coatings
- Titanium driveshaft and all-metal power section options further safeguard motor from harsh chemicals
Failsafe design
- Enhanced output mandrel incorporates bending stress relief and internal safety catch
- Flow restrictor design and location reduces risk of mandrel connection deformation
Upgrade existing M5 inventory
- Owners of the M5 can benefit from the enhanced features of the M6 with our M5+ upgrade package
- Contact us for complete details
Specifications (Imperial)
| Operating capacity | Static capacity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal motor OD (in) | Nominal BA OD (in) | Motor series | Bit box to bend (in) | Bit box to fixed bend (in) | Hole size (in) | WOB (lb) | Max bit overpull (lb) | Torque (ft-lb) | Flow rate (gpm) | WOB to re-run (lb) | Bit overpull to re-run (lb) | Body overpull (lb) | Torque (ft-lb) |
| 2 ⅞ | 2 ⅞ | M6 | 33 | n/a | 3 ½ – 4 ½ | 11,500 | 11,500 | 800 | 125 | 40,900 | 40,900 | 106,000 | 1,250 |
| 3 ⅛ | 3 ⅛ | M6 | 33 | n/a | 3 ¾ – 4 ½ | 11,500 | 11,500 | 800 | 125 | 40,900 | 40,900 | 134,000 | 1,250 |
| 3 ½ | 3 ½ | M6 | 37 | 30 | 4 ½ – 5 ⅞ | 18,500 | 18,500 | 1,500 | 220 | 68,400 | 68,400 | 187,000 | 2,300 |
| 4 ¾ | 5 | M5* | 61 | 50 | 5 ⅞ – 7 ⅞ | 54,000 (33,000) | 31,000 | 5,500 | 375 | 222,000 (133,000) | 138,000 | 404,000 | 8,500 |
| 5 | 5 ⅛ | M5* | 61 | 50 | 5 ⅞ – 7 ⅞ | 54,000 (33,000) | 31,000 | 5,500 | 375 | 222,000 (133,000) | 138,000 | 424,000 | 8,500 |
| 5 | 5 ⅛ | M5+ | 61 | 50 | 5 ⅞ – 7 ⅞ | 54,000 | 31,000 | 6,500 | 375 | 222,000 | 138,000 | 424,000 | 10,000 |
| 6 ½ | 6 ½ | M6* | 67 | 56 | 7 ⅞ – 9 ⅞ | 91,000 (66,000) | 51,000 | 15,000 | 600 | 396,000 (261,000) | 210,000 | 524,000 | 24,000 |
| 6 ¾ | 6 ½ | M6* | 67 | 56 | 8 ½ – 9 ⅞ | 91,000 (66,000) | 51,000 | 15,000 | 600 | 396,000 (261,000) | 210,000 | 568,000 | 24,000 |
| 7 ¾ | 7 ¾ | M6 | 80 | 67 | 9 ⅝ – 12 ¼ | 88,000 | 73,000 | 22,000 | 950 | 365,000 | 318,000 | 563,000 | 35,000 |
| 8 | 8 | M6 | 80 | 67 | 9 ⅝ – 12 ¼ | 105,000 | 73,000 | 22,000 | 950 | 419,000 | 318,000 | 783,000 | 35,000 |
| 9 ⅝ | 9 ⅝ | 10 | 112 | 105 | 12 ¼ – 17 ½ | 190,000 | 82,000 | 30,000 | 1,350 | 907,000 | 416,000 | 1,177,000 | 48,000 |
| 11 ¼ | 11 ¼ | 10 | 122 | 108 | 14 ¾ – 26 | 225,000 | 119,000 | 40,000 | 1,800 | 1,118,000 | 610,000 | 1,425,000 | 70,000 |
M5* and M6* with single on-bottom-bearing option. (WOB capacity in brackets.)
The M5+ upgrade kit includes a redesigned output mandrel and flow restrictor, as well as the new WK5 driveline (available in 5”).
Specifications are based on as-new condition and are subject to change without notice. Motor assemblies are available in a multitude of speeds and configurations.
Specifications (Metric)
| Operating capacity | Static capacity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal motor OD (mm) | Nominal BA OD (mm) | Motor series | Bit box to bend (m) | Bit box to fixed bend (m) | Hole size (mm) | WOB (daN) | Max bit overpull (daN) | Torque (N·m) | Flow rate (lpm) | WOB to re-run (daN) | Bit overpull to re-run (daN) | Body overpull (daN) | Torque (N·m) |
| 73 | 73 | M6 | 0.84 | n/a | 89 – 114 | 5,100 | 5,100 | 1,100 | 500 | 18,200 | 18,200 | 47,000 | 1,700 |
| 79 | 79 | M6 | 0.84 | n/a | 95 – 114 | 5,100 | 5,100 | 1,100 | 500 | 18,200 | 18,200 | 60,000 | 1,700 |
| 89 | 89 | M6 | 0.94 | 0.76 | 114 – 149 | 8,200 | 8,200 | 2,000 | 800 | 30,400 | 30,400 | 83,000 | 3,100 |
| 121 | 127 | M5* | 1.55 | 1.27 | 149 – 200 | 24,000 (14,700) | 13,800 | 7,500 | 1,400 | 99,000 (59,000) | 61,400 | 180,000 | 11,500 |
| 127 | 130 | M5* | 1.55 | 1.27 | 149 – 200 | 24,000 (14,700) | 13,800 | 7,500 | 1,400 | 99,000 (59,000) | 61,400 | 189,000 | 11,500 |
| 127 | 130 | M5+ | 1.55 | 1.27 | 149 – 200 | 24,000 | 13,800 | 8,800 | 1,400 | 99,000 | 61,400 | 189,000 | 13,600 |
| 165 | 165 | M6* | 1.70 | 1.42 | 200 – 251 | 40,500 (29,500) | 23,000 | 20,300 | 2,300 | 176,000 (116,000) | 93,000 | 233,000 | 32,500 |
| 171 | 165 | M6* | 1.70 | 1.42 | 216 – 251 | 40,500 (29,500) | 23,000 | 20,300 | 2,300 | 176,000 (116,000) | 93,000 | 253,000 | 32,500 |
| 197 | 197 | M6 | 2.03 | 1.70 | 244 – 311 | 39,000 | 32,000 | 29,800 | 3,600 | 162,000 | 141,000 | 250,000 | 47,500 |
| 203 | 203 | M6 | 2.03 | 1.70 | 244 – 311 | 47,000 | 32,000 | 29,800 | 3,600 | 186,000 | 141,000 | 348,000 | 47,500 |
| 244 | 244 | 10 | 2.84 | 2.67 | 311 – 445 | 85,000 | 36,000 | 40,700 | 5,100 | 403,000 | 185,000 | 524,000 | 65,100 |
| 286 | 286 | 10 | 3.10 | 2.74 | 375 – 660 | 100,000 | 53,000 | 54,200 | 6,800 | 497,000 | 271,000 | 634,000 | 94,900 |
M5* and M6* with single on-bottom-bearing option. (WOB capacity in brackets.)
The M5+ upgrade kit includes a redesigned output mandrel and flow restrictor, as well as the new WK5 driveline (available in 5”).
Specifications are based on as-new condition and are subject to change without notice. Motor assemblies are available in a multitude of speeds and configurations.
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