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API Oil Drilling Parts Rotary Table Bushing / Roller Kelly Bushing

Place of Origin: Guangdong

Company Profile

Location: Dongying, Shandong, China (Mainland)
Business Type: Manufacturer
Main Products: Land Drilling Rig, Truck-mounted Drilling Rig, Workover Equipment

Product Detail

Model No.: AIA-1

Product Description

 
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

19.4*19.4*27.4

20*20*28.3

18*18*27.5

20*20*27.5

Weight

Kg

700

730

670

420

460

340

400

lb

1540

1610

1470

924

1012

750

808

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