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Rolling Kelly Bushing
0.0 Yuan 0.0 Yuan
Product description

Rolling Kelly Bushing

The rolling kelly bushings are designed for hold the kelly and match with the master bushing, to drive the kelly stem rotate by the four rollers in bushing. In drilling operation, the kelly shall keeping slide downward with the increase of drilling depth. The rollers can reduce friction to the kelly and extending it's service life. For different shape of the kelly stem (square or hexagonal), different rollers are available.

 

Model

Type

Drive

Fitting Kelly Size

Square (in)

Hexagonal (in)

HDS

Heavy

Square

2 1/2 - 6

3-6

27-HDP

Pinned Shaft

3-6

20-HDP

RTM4

Medium

Square

2 1/2- 5 1/4

3 – 4 1/4

20-MDP

Pinned Shaft

2 1/2- 4 1/4

17-MDP

RTS4

Light

Square

 

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QINGDAO OILRIG TRADE CO., LTD. has been dedicating itself to export business of oilfield equipment and components to North/South America, Europe, Middle East, South East Asia .

Our Warranty

OILRIG warrants our products for a period of one year to be free from defective material and workmanship. OILRIG's products equal or exceed the quality and tolerances of the products provided by the original manufacturer. 

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