| Model: | - |
|---|---|
| Brand: | - |
| Origin: | Made In China |
| Category: | Metallurgy , Mining & Energy / Energy / Petroleum |
| Label: | Roller Kelly Bushing |
| Price: |
US $500
/ pc
|
| Min. Order: | 1 pc |
| Live Chat: | Last Online:08 Feb, 2014 |
Roller Kelly Bushings
Roller Kelly Bushings can be classed as two types based on different ways of drive, square drive and pin drive. Also they can be classed as three types based on different style, heavy, medium and light-duty. They are used for 17.1/2 to 49.1/2inch rotary tables. They are designed and manufactured according to API Spec 7K.
Features
1. Pulling out or feeding off string can be done while rotating;
2. Because of its integral construction, it can not 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 wight on bit is accurate;
5. The Kelly has lower wear and has long life Labor condition is improved.
