PIN & SQUARE DRIVE BUSHING
Specifications
DRIVE BUSHING:1.drive:square and pin
2.API Spec.7K
3.used for 17 1/2" ~ 49 1/2" rotary tables
DRIVE BUSHING

1.Pulling out or feeding off string can be done while rotating;
2.Because of its integral construction, it cannot fly out and hurts you.
3.The bushing is easily installed into the master bushing, maintaining good alignment;
4.The contact between Kelly and roller is rolling contact, so friction is lower, and weight on bit is accurate;
5.The Kelly has lower wear and has long life.
Model |
Type |
Way of Drive |
Suitable for Kelly |
|
Square(in) |
Hexagon(in) |
|||
HDS |
Heavy |
Square drive |
3-6 |
3-6 |
27-HDP |
Pin drive |
3-6 |
3-6 |
|
20-HDP |
Pin drive |
3-6 |
3-6 |
|
RTM4 |
Medium |
Square drive |
2 1/2-5 1/4 |
3-4 1/4 |
20-MDP |
Pin drive |
2 1/2-4 1/4 |
3-4 1/4 |
|
17-MDP |
Pin drive |
2 1/2-4 1/4 |
3-4 1/4 |
|
RTS4 |
Light-dury |
Square drive |
2 1/2-4 1/4 |
3-4 1/ |
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