Neftekamsk Machinery Plant
of Special Equipment
of Special Equipment
МК 190 Type Roller Kelly Bushing
Roller kelly bushing is designed for torque transmission from rotary table to kelly bar.
The roller kelly bushing is used as part of a mobile drilling rig on the RUP-560 rotor and can be used with various standard sizes of driving stems.
Wear-resistant alloy steel is used to manufacture the rollers.
The rollers use plain bearings and plates made of high-strength synthetic material, which provides a longer service life compared to conventional bearings. In this case, jamming of the rollers is excluded. Increased torque compared to Russian analogues.
Technical Specifications
|
Roller kelly bushing marking |
МК 190.00.00.000 | |||
|
Nominal lead pipe size*, mm |
80 | 86 | 90 | 114 |
|
Torque moment, kN х m |
20 | |||
|
Overall dimensions, max., mm |
Ø 592 х 490 | |||
|
Mass, max, kg |
360 | |||
Dimensions and weights of rollers assembly with bushing
| Lead pipe square, mm | Designation |
Overal dimensions (diameter х length), mm |
Mass of 1 roller, kg |
| 80 | МК 196.01.00.000 Roller assembly | Ø172×108 | 16 |
| 86 | МК 196.01.00.000-01 Roller assembly | Ø166×108 | 14,4 |
| 90 | МК 196.01.00.000-02 Roller assembly | Ø161×108 | 13,4 |
| 114 | МК 196.01.00.000-03 Roller assembly | Ø137×108 | 9,2 |
