311.2mm TCI Drill Bit , Tungsten Carbide Insert Bit With Friction Bearing / Sealed Bearing
311.2mm TCI Bit , IADC 517 , Friction Bearing , Sealed Bearing , Tungsten Carbide Insert Bit , TRC Bit
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
|
Types & IADC Code |
417 |
437 447 |
517 527 |
517 527 |
537 547 |
617 627 |
637
|
|
|
WOB |
KN/mm(Bit Dia.) |
0.4~0.9 |
0.4~0.9 |
0.35~1.0 |
0.35~1.0 |
0.5~1.0 |
0.6~1.1 |
0.7~1.2 |
|
Lb/in. (Bit Dia.) |
2285~5142 |
2285~5142 |
2000~5714 |
2000~5714 |
2857~5714 |
3428~6285 |
4000~6857 |
|
|
Rotation Speed (Rpm) |
140~60 |
240~70 |
125~50 |
~60 |
110~50 |
100~40 |
80~4 |
|
Seal Definitions
- In a rotating bearing, the two working sides of a seal are called the static energizer and the dynamic wear face. These two parts are directly opposite each other, with the energizing portion bearing on the gland and the dynamic wear face bearing against the rotating unit. For the energizing portion of the seal to function properly, it must have a surface against which to react. This is provided by a channel-shaped groove called a seal gland.
- The wearing portion of the seal must have the capability to withstand the heat and abrasion generated as the rotating surface passes over it. The energizer, when functioning correctly, is not a high-wear area. Ideally, it simply bears against the gland and provides the pushing energy that maintains firm contact between the wear surface and rotating cone.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.