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API Oil Drilling Parts Rotary Table Bushing / Roller Kelly Bushing

Country/Region china
Company elevator-spare-parts cpmpany
Categories Oilfield Drilling Chemicals
Telephone 0573-83331513
ICP License Issued by the Chinese Ministry
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API Oil Drilling Parts Rotary Table Bushing / Roller Kelly Bushing


API oil drilling parts rotary table bushing/ roller kelly bushing
Roller kelly bushing is a necessary tool for drilling. It is to drive kelly spinner by matching with master bushing.
Through rotating of four rollers, the friction between rollers and kelly pipe is reduced and service life is extended.
For different sizes of kelly pipe and hexagonal pipe only need to change corresponding rollers. To connect with
rotary table, there are two transmission styles (square and pin). The product is designed and manufactured
according to API Spec 7K Specification for Drill Equipment.
The details are as bellow:

Model

HDS

27-HDP

20-HDP

MDS

20-MDP

17-MDP

LDS

Type

Heavy

Medium

Light

Max. torque

N.m

32365

22555

13729

ft.lbf

23871

16636

10126

Drive Mode

Square

Pin

Square

Pin

Square

Square

mm

76.2~152.4

63.5~133.35

63.5~133.35

in

3~6

21/2~51/4

21/2~51/4

Hex

mm

76.2~152.4

76.2~107.95

76.2~107.95

in

3~6

3~41/4

3~41/4

Size

mm

630*630*740

630*630*780

493*493*696

510*510*720

458*458*700

508*508*700

in

24.8*24.8*29.1

24.8*24.8*30.7

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