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Dongying Lake Petroleum Technology Co., Ltd.

China Manufacturer with main products: Bop/Blowout Preventer, Mud Pump, Downhole Tools, Casing/Tubing, Drill Collar/Drill Pipe/Stabilizer, Handling Tools, Cementing Tools, Rig...

Home  >Products Catalog > handling tools > API 7K RTS4 Light Duty Roller Kelly Bushing Drive Kelly Pipe

API 7K RTS4 Light Duty Roller Kelly Bushing Drive Kelly Pipe

FOB Price: 500.00 - 2,000.00 USD/Piece
Supply Ability: 500 Piece(s) per Month
Shipping: 10 days,any port
Payment Terms: L/C, T/T, Western Union
In Stock

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Shandong in China
Packaging Details: Wooden cases

Quick Details

  • After-sales Service Provided: Engineers available to service machinery overseas
  • Warranty: 12months
  • Certification: API 7K
  • Model Number: RTS4
  • Brand Name: lake
  • Condition: New
  • Type: Light duty
  • Drive way: Square drive
  • Kelly size: 2 1/2-4 1/4"
  • Material: Carbon steel


1. Product Descriptions:

the Roller Kelly bushing i
s a necessary tool tor drilling,by matching with the rotary square to drive Kelly pipe.the product can reduce its friction with Kelly by rotation of four rollers and extend its service life. Change different rollers to match with different square and hexagonal Kelly pipes and connect with different rotary tables.


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 49.1/2 Inch rotary tables. They are designed and manufactured according to API Spec 7K. Specification for drilling and well servicing equipment.

2. Technical parameters:



Drive way

Applicable size of kelly(in)







Heavy duty

Square drive

2 1/2-6




Pin drive

2 1/2-6





2 1/2-6



Medium duty

Square drive

2 1/2-5 1/4

3-4 1/4


Light duty


2 1/2-4 1/4

3-4 1/4

API 7K RTS4 light duty roller kelly bushing drive kelly pipe

Service Process

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    ECVV doesn't charge any service fee to Buyers for buying this product.

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  • Deposit Service Commitments

    In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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