X-over sub for for conversion and connection of drill stem component in petroleum

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 set
Supply Capability:
10000 set/month

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Product Description:

1.Xover sub acts for conversion and connection of drill stem component in petroleum, natural gas and geology drilling work.  It is one of the main tools in connect the upper tool and the bottom Hole. It is used mainly for connecting of upper drill tools and lower drill tools during drilling operations when upper and lower buckle type failed to connect during drilling operation.


2.Features:

X-over sub for  for conversion and connection of drill stem component in petroleum

X-over sub for  for conversion and connection of drill stem component in petroleum


3. The basic structure of the X-over sub


Variety

name

 

Upper link 

 

Lower link

 

Type

 

1

Kelly Cross-over sub

 

Kelly

 

Drill pipe joints

 

A or B

AB

2

drill pipe Cross-over sub

 

Drill pipe joints

 

Drill pipe joints

 

A or B

AB

3

Transition Cross-over sub


Drill pipe joints

 

drill collar

 

A or B

AB

4

drill collar Cross-over sub

 

drill collar

 

drill collar

 

A or B

AB

5

Borehole Cross-over sub

 

drill collar

 

drill collar

 

A or B

AB

6

Faucet Cross-over sub

 

Faucet

 

Kelly bar

 

C

AB

7

Salvaging Cross-over sub

 

Kelly

 

Drill pipe joints

 

C

 

Drill pipe joints

 

Fishing Tools

 

C



4.Pictures

X-over sub for  for conversion and connection of drill stem component in petroleum

X-over sub for  for conversion and connection of drill stem component in petroleum


5.FAQ

We have organized several common questions for our clientsmay help you sincerely 

①How about your company

A world class manufacturer & supplier of castings forging in carbon steel and alloy steelis one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirement.

②How to guarantee the quality of the products

We have established the international advanced quality management systemevery link from raw material to final product we have strict quality testWe resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

③How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.

 

 


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Q:Yoyo how can I wash the bearings without gas?. What other materials can I use?
Thinner, acetone, chloroform, banana water, kerosene.
Q:Analysis of the problem: when other conditions remain unchanged,
When the other conditions are constant, the bearing life will be 0.125 times as much as the equivalent dynamic load suffered by the ball bearing. (0.5^3).When the other conditions are constant, the bearing life will be half of the original when the speed of the ball bearing is doubled.To read, ah, there are formulas, ha ha.
Q:How are the bearings and shafts fitted together?
Standard installation method: the bearing heating, the use of thermal expansion and contraction principle, installation time and effort, delaying bearing life, knocking bearings will destroy the bearing accuracy, coordination clearanceTeacher craftsman installation method: no fixed tools, sleeve, hammer, basic equipmentSpecial tips on what tools are for
Q:In the customs tariff classification,
Also called the "Bush", is in the shape of half cylinder tile.
Q:Are there any differences between bearings used on fans and other ordinary bearings?
the fan usually has two ends adjustable heart or one end of the cylinder with diagonal contact at one end.
Q:What is the cause of a large bearing vibration of a turbine and other bearings?
May be: 1, the bearings to measure the vibration of the probe loose, measured false value; 2, the bearing cover loose; 3, to the bearing oil film instability; 4, the bearing bush defects; 5, the bearing clearance gap.
Q:Characteristics of cross roller bearings
Cross roller bearings, with the inner and outer ring divided into, roller and interval retainer, and cross roller collar fixed together, separated from each other to prevent the installation of cross roller collar simple operation. Because roller cross arrangement, so only 1 sets of cross roller collar can withstand various direction load, compared with the traditional model, increase the rigidity of 3~4 times. At the same time, because the cross roller bearing inner ring or outer ring is a two division structure, the bearing clearance can be adjusted, even if the preload is applied, high precision rotary movement can be achieved.1, with excellent rotation accuracyThe internal structure of cross roller bearings is made of 90 degrees vertical cross arrangement of rollers,The roller is provided with an interval retainer or an isolating block, which prevents the tilting of the roller and the grinding between the rollers. In addition, the phenomenon of side contact or locking of the roller can not occur; at the same time, because the inner and outer ring is a segmented structure, the clearance can be adjusted, and even high-precision rotation can be obtained even if the preload is applied.2. Simplify the operation and installationThe outer ring or inner ring divided into 2 parts is fixed together after the roller and retainer are mounted, so the installation is very simple.3, bear larger axial and radial loadBecause the rollers are arranged perpendicularly to each other on the rolling surface of the V groove on a 90 degree angle.
Q:In order not to affect the influence of other external forces on the axis,
Are you using them on machine tools? If so, I know that the jack sensor has something for you. You can look them up at their website first.
Q:In addition to Shanghai Nairen bearing SKF bearing and other imported brands do?
Now the general trading company bearing all brands are suppliers, this is not how I know, but SKF if done well, other brands should also have good suppliers, you can make a phone call to ask their company.
Q:Must the axle neck fit with the bearings? Is there anything else you can use? Or nothing?
Not necessarily, depends on the use of configuration, the shaft should generally be equipped with bearings, fixed shaft does not match the bearings..AskIs the rotating shaft, must use bearings? What else can I use in Dingxi?Chasing the answerThe support of the rotating shaft must be the bearing, and the bearing is no more than two kinds of rolling bearings and sliding bearings.

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