Light Duty Square Drive Roller Kelly Bushing for Rotary Tables
Product Descrption
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.
We manufacture Pin Drive Kelly Bushing for onshore & offshore Drilling Operations, available in two sizes Model 27 PDHD, 20 PDHD, suitable for a range of 20½" to 49½" Rotary Table having 23" and 25-3/4" Dia Pin Centre, 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.
Characterstics of Our Roller Kelly Bushing
- The contact between Kelly and roller is rolling contact, so friction is lower, and weight on bit is accurate.
- Through the rotation of four rolls, the friction between rolls and kelly pipes is reduced to extend service life.
- t is designed and manufactured according to API Spec 7K “Specification For Drilling Equipment".
- Two transmission styles (square and pinconnect) are available.
- Pulling out or feeding off string can be done while rotating.
- The bushing is easily installed into the master bushing, maintaining good alignment.
- Because of its intergral construction, it can not fly out and hurt you.
Main Specifications of 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 specializes in producing solid control and drilling well servicing equipments, and is one of the net members applied for supplying the different oil equipments for China National Petroleum Corp.(CNPC) and Sinopec Group.The company manufacture our products by conforming the international standards. Our products are ISO certified. We have been granted the right to use the Official Monogram of API 7K & 8C.
Packaging & Shipping
Packaging Details
The normal package is wooden case, iron case.
Shipping
By sea/ air according to customers' request.
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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Light Duty Square Drive Kelly Bushing For Rotary Tables Images
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