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API Spec 7kRoller Kelly Bushings javascript:void(0)

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air Hoist [23]
blowout preventor [7]
casing head [2]
cementing Head [8]
cementing tools [5]
Downhole motor [3]
downhole tools [10]
drill bits [8]
drilling Manual Tong [1]
elevator [12]
elevator link [1]
flange [7]
float shoe [1]
Handling tools [23]
High pressure Hose [14]
hole opener [1]
Hydraulic cathead [5]
kelly bushing [1]
manifold [9]
manual tong [8]
master bushings [1]
mud pump part [3]
mud pump spare part [16]
power tong [70]
ring manifold [5]
Rotary table [3]
slips [11]
solid control equipment [18]
stabbing guide [1]
thread protector [2]
Tong torque system [4]
traveling block & Hook [1]

Dongying Lake Petroleum Technology Co.,Ltd

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API Spec 7kRoller Kelly Bushings javascript:void(0)

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The Roller Kelly bushing ia 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.

Two transmission styles(square and pinconnect)are available. The product is designed and manufactured according to API Spec 7k”Specification for Drill Equipment”.

Model	Type	Max. Torque	Drive Mode	Size range of kelly(in)
Model	Type	Max. Torque	Drive Mode	Square	Haxegon
HDS	Heavy-duty	27000	Square	3~6	3~6
20-HDP		32340	Pin	3~6	3~6
27-HDP		32340	Pin	3~6	3~6
MDS	Medium-duty	22540	Square	2½~5¾	3~4¼
17-HDP			Pin	2½~5¾	3~4¼
20-HDP			Pin	2½~5¾	3~4¼
LDS	Light-duty	13720	Square	2½~5¾	3~4¼

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