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
6 152,4 |
6 1/4
158,7 |
6 3/4
171,4 |
7 1/2
190,5 |
7 7/8 200 |
|||||
IADC code | model | IADC code | model | IADC code | model | IADC code | model | IADC code | model |
211 216 246 517 527 547 617 |
S211
S216 S246 S517 SD527 S547 SD617 |
121
241 321 517 527 547 637 |
S121
S241 S321 S517 S527 S547 S637 |
121
241 321 |
S121
S241 S321 |
121
124 134 217 244 517 527 547 617
|
S121
S124C S134C S217 S244C S517 S527 SD547 S617 |
121
124 131 134 241 321 517 527 547 637 |
S121
S124 S131 S134 S241 S321 S517 S527 S547 S637 |