API SPEC 7k Drilling Rig Spare Parts Roller Kelly Bushing
Product Interview
Roller Kelly bushing is to drive kelly by matching with rotary bushing. There are two drive modes: square drive and pin drive. Thre types: Heavy, medium, and light. For kelly: Square and Hexagonal. It fits for 17 1/2-49 1/2 in rotary tables. The product is designed and manufactured according to API Spec 7K Specification for Drill and well servising Equipment.
We manufactures Square Drive Kelly Bushing for onshore & offshore Drilling Operations available in two sizes Model 27 SDHD, 20 SDHD, suitable for a range of 20½" to 49½" Rotary Table, works as connecting equipment between Rotary Table & Kelly This unit is used for Heavy Duty Drilling Operation & high torque conditions at the time of Drilling Operations & handle Kelly sizes from 3" to 6" Square or Hexagonal. Suitable up to torque load: 32362 N-m at 300 RPM.
This unit will consist of the following:
- Kelly Bushings with Roller Assembly
- Wrench
- Wiper Assembly
- Wear gauge
Design Advantages of Oilfield Roller Kelly Bushing
- Pulling out or feeding off string can be done while rotating.
- Two transmission styles (square and pinconnect) are available.
- The bushing is easily installed into the master bushing, maintaining good alignment.
- The contact between Kelly and roller is rolling contact, so friction is lower, and weight on bit is accurate.
- Because of its intergral construction, it can not fly out and hurt you.
- Through the rotation of four rolls, the friction between rolls and kelly pipes is reduced to extend service life.
Technical Data of Our Oilfield Roller Kelly Bushing
| Model | Type | Way of Drive | 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 |
| RTM4 | Medium | Square Drive | 2 1/25 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 |
Xi'an TianRui Petroleum Machinery Equipment Company Limited was established in 2010 and located in Xi'an city of China. Our main products include: solid control equipment, dowhole tools, oilfield drilling rig and workover rig and their parts, wellhead tools, BOP and spare parts, mud pump spare parts.
Currently, our products is already exported to America, Middle East, Australia,Africa and 20 other countries and regions. Our company has always focused on research, development and innovation. We will initiate the second phase of our development strategy. Our company regards "reasonable prices, efficient production time and good after-sales service" as our tenet. We hope to cooperate with more customers for mutual development and benefits. We welcome potential buyers to contact us.
Competitive Advantages
1. We offer high quality products at competitive price.
2. Shortest delivery time.
3. Flexible payment terms.
4. Timely after-sale service.
5. Most of our equipment can be replaceable with international brands.
6. Our products have been exported to Argentina, Egypt, US, Australia, Romania, Pakistan, Dubai, Abu Dhabi, Iran, India, Indonesia, Vietnam, Malaysia and many other countries.
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