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
13 5/8 346,1 |
13 3/4
349,2 |
14 3/4
374,6 |
15 1/2
393,7 |
16 406,4 |
|||||
IADC code | model | IADC code | model | IADC code | model | IADC code | model | IADC code | model |
114 115 121 124 124 437 515 517 |
S114W
ST115W S121 S124 S124W S437 S515 S517 |
114
115 437 517 |
S114
ST115W S437 S517 |
127
136 517 527 |
ST127W
S136 S517 S527 |
125
215 217 517 537 |
S125GW
S215G S217G S517G S537G |
115
215 515 535 545 |
SGT115GW SG215G S515 S535 S545 |