Demanding downhole applications such as Artificial Lift or ESP motors and seals (protectors), mud motors, etc. require unique thrust bearing solutions. D&S Engineered Products Inc. offers specialized hydrodynamic tilting pad thrust bearings having a unique surface treatment. These bearings are matched with a runner (thrust collar) whose surface is treated with the tribological pair to the bearing surface. The result is a bearing-runner pair that provides superior performance, reliability and longevity.
Thrust bearings are available in rocker back or Pliant Pivot tilting pad versions.
Application Guide
| Tribological Pair | Suitability to (0 - not suitable 5 - highly suitable) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thrust Face (Steel Backed) | Runner Face (Steel Backed) | Dry COF | Cost | High Speed | High Load | High Temp | Thin Film | Corrosion | Sour Gas | Sand |
| PEEK^ (molded) |
- no coating - (hardened) |
0.2-0.35 | $$ | 3 | 3 | 3 | 3 | 3 | 0 | 0 |
| Si-C (bonded wafer) |
W-Co (bonded wafer) |
0.15-0.2 | $$$$$ | 5 | 4 | 5 | 5 | 5 | 4 | 5 |
| Si3N4 (bonded wafer) |
- no coating - (hardened) |
0.2-0.3 | $$$$ | 4 | 4 | 5 | 4 | 4 | 4 | 5 |
| W-C (bonded wafer) |
W-Co (bonded wafer) |
0.2-0.25 | $$$$ | 5 | 4 | 5 | 4 | 5 | 4 | 4 |
| PCD (bonded wafer) |
- no coating - (hardened) |
0.1-0.15 | $$$$$ | 5 | 4 | 5 | 4 | 3 | 4 | 5 |
| HARDFACE (coating) |
HARDFACE (coating) |
0.3-0.6 | $$$ | 4 | 3 | 5 | 5 | 5 | 5 | 5 |
^Not suitable for mud motors
All tribological pairs listed are suitable for electric submersible pumps, mud motors and other downhole equipment except where noted.