Oil and Gas API 7K Roller Kelly Bushing with Square 3"-6"
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.
There are four pieces of roller in the bushing which have needle bearing inside the rollers and fastened between roof and bottom cover by and pin and seals at both ends of rollers to prevent the drilling fluid from percolating. There is a stop pin fixed in the seal body to prevent rotating.
Xi'an TianRui Petroleum Machinery Equipment Company Limited is a professional supplier of various oilfield equipment, including oil drilling and service equipment, oil production equipment, OCTG, wellhead & downhole tools and spare parts. Our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). Our company has become VIP (assigned) supplier and built strategic partnership with some countries' national petroleum companies.
Main Features of Oilfield Roller Kelly Bushing
- 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.
- Two transmission styles (square and pinconnect) are available.
- Pulling out or feeding off string can be done while rotating
- 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 Table 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.
Certificates
API-5CT, API-10D, API-7K, API-6A, API-11AX,ISO9001, ISO14001 , ISO18001 etc.
Packaging
Packaging Details: Bundling and container packaging, we will put moisture-proof and rust-proof materials in the container to resist the harsh environment during transportation.
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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API 7K 3" Square Roller Kelly Bushing Drill Spare Parts Images
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