128718M mud lubricated thrust bearings
Bearings | Dimensions | Loading | Weight |
ISO | d | D | B | Dyn C | stat C0 | kg |
| mm | mm | mm | KN | KN | KG |
128718 | 90 | 142 | 550 | 206.4 | 226.8 | 35.2 |
128718М | 90 | 142 | 550 | 230 | 253 | 35 |
Whether you’re drilling for oil or gas, the bearings in a mud motor
at the end of a drill string have a direct impact on productivity
and reliability. These mud motor bearings have to endure extreme
operating conditions. In addition to severe axial and shock loads,
these bearings are “lubricated” with highly abrasive mud, which for
a bearing is the definition of an extreme operating condition. How
the new bearing works The typical mud motor bearing contains
between 8 and 12 rows for design optimization. When the bearing is
new, the majority of the load is accommodated by the first four or
five rows (fig. 1). As each row starts to wear, the load is shifted
to the next row (fig. 2) and the next (fig. 3) until all the rows
are worn equally. Then, the load is shifted back to the first row
and the process is repeated. This unique design enables the bearing
to last significantly longer than previous bearing designs.
mud lubricated thrust bearings Product features
Special steel for all bearing components
Full complement bearing
Precision matched rings
Unique bearing design to support heavy axial drilling loads
Customer benefits
Improved wear-resistance
Increased load carrying capacity
Optimized load distribution
Increased robustness
Improved reliability
Customized design