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Roller Kerlly Bushings
Roller Kerlly Bushings are used for 171/2-491/2 inch rotary tables. They are designed and manufactured according to API Spec.
Model |
type |
Way of drive |
Suitable for kelly |
|
|
|
|
Square (in) |
Hex (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 |
PTM4 |
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-duty |
Square drive |
2 1/2-4 1/4 |
3-4 1/4 |
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