SANAL model bits have roller bearings and rubber toric seals. It is designed for drilling at high rotational speed. It has the following advantages:
- rollers are located in a groove machined in a cone, which lets increase the size of a spike. In this case, the bit can operate at high axial load and high rotation speed.
- surface of the thrust bearings is covered with a layer of high-strength material, that improves reliability of the bearings and increase permissible axial load.
Specifications
17 1/2 444,5 |
20
508 |
26 660,4 |
|||||
IADC code | model | IADC code | model | IADC code | model | IADC code | model |
115 115 125 125 135 135 137 435 437 |
S115GW
SG115GW S125GW SG125GW S135G SG135G S137W SGT435G ST437 |
515
517 517 527 537 537 547 |
SGT515G
S517 ST517 ST527 S537 ST537 ST547 |
125
125 215 215 515 525 |
SG125CGW
S125CGW S215CGW SG215CGW S515CG S525CG |
114
124 134 525 |
S114C S124C S134C S525CG |