Lifting sub used for special tools during the drilling of oil, gas and geological exploration
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 10000 set/month
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1.Promotion short section is used for special tools during the drilling of oil, gas and geological exploration. The promotion short section of unitary structure is divided into 18 degree shoulder and 90 degree shoulder. You can choose the homologous promotion short section according to structural form of the lift sub when use it.
2.The size of Non-magnetic heavy weight drill pipe
Nominal size In(mm)
| ID (mm)
| Joint OD (mm)
| Chamfering diameter (mm)
| Joint length (mm)
| Joint thread
|
2⅞"（73） | 31.8 | 79.4 | 76.2 | 250 | NC23 |
44.5 | 88.9 | 82.9 | NC26 | ||
3½"(89) | 54.0 | 104.9 | 100.4 | NC31 | |
50.8 | 120.7 | 114.7 | NC35 | ||
68.3 | 127.0 | 121 | NC8 | ||
5"(127) | 71.4 | 152.4 | 144.5 | NC44 | |
158.8 | 149.2 | ||||
82.6 | 158.8 | 150.0 | NC46 | ||
165.1 | 154.8 | ||||
171.5 | 159.5 | ||||
5"(127) | 82.6 | 177.8 | 164.7 | NC50 | |
184.2 | 169.2 | ||||
196.8 | 185.3 | 300 | NC56 | ||
203.2 | 190.1 | ||||
5"(127) | 95.3 | 209.6 | 195.7 | 6⅝"REG | |
228.6 | 212.7 | NC61 | |||
241.3 | 223.8 | 7⅝" REG | |||
247.7 | 232.6 | NC70 | |||
254 | 237.3 | NC70 | |||
279.4 | 260.7 | NC70 |
4.Pictures
5.FAQ
We have organized several common questions for our clients，may help you sincerely：
①How about your company？
A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is 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 system，every link from raw material to final product we have strict quality test；We 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.
- Q: Is the fag bearing processing the same as other bearings?
- Bearing processing is basically the same, bearing materials and quenching just now is the most important, it relates to the quality of the bearing.
- Q: Compared with other bearings, what is the application performance of NSK Bearings?
- Yes, especially if the landlord is going to fill out the NSK Bearings bought by the company, especially good.
- Q: What's the bearing fillet of the 7003C? Do other bearings have the same fillet?
- The other bearings don't have the same fillet, and the bigger the bearing, the bigger the fillet.
- Q: What's the other size of the outer diameter 15?
- Different kinds, different sizes and thicknesses can not answer you.
- Q: The car separation bearing is broken, isn't it? What's the cause of the other broken bearings?
- Judging the quality of the separation of bearings: step down the clutch pedal to half linkage position, and then make a noise, you can judge the separation of bearing damage
- Q: Bearings radial, in addition to the location of contact with the box, there is no other way?
- 10, to prevent the bearing in axial load axial movement, bearings on the shaft and outside the Nanning hole are applied axial positioning device. Bearings on the shaft and the selection of the location of the shell depends on the size and direction of the load on the shaft, the speed of the bearing, the type of bearing, the position of the bearing on the shaft, etc.. The higher the axial load, the higher the bearing speed, the more reliable the axial alignment. For different types of bearings, axial positioning should also be different. Such as diagonal contact ball bearings and tapered roller bearings, shoulder and shell holes can be used to shoulder one-way support, without the use of special positioning device, the ring in the axial movement can be supported by the bearing itself. As a fixed support radial bearing, the inner and outer rings are fixed on the left support in the axial direction. As a traveling support that needs to compensate for the thermal elongation of the shaft, if a separable bearing is not installed, only one of the rings needs to be fixed, and the traveling ring is not fixed. Separate bearings, such as short cylindrical roller bearings and needle roller bearings, are installed in the traveling support, and all two rings need to be fixed. Bearing bearing ring used to positioning method is described as follows: 1. the bearing inner ring mounted on the shaft bearing inner ring, generally by the shaft in a fixed bearing position, and the other side with nuts and washers or spring retainer ring fixed.
- Q: Is there any difference between plain bearings and other bearings?
- The biggest difference between the sliding bearings is linear motion, and the other bearings do circular motion.
- Q: In engineering practice, for needle roller bearings, usually axial positioning is the same as other bearings?
- Needle bearing features are axial can not bear the load, so the operation of the axial direction of the bearing no force, radial installation slightly tight can be, the axial need not limit
- Q: What are the world bearing giants?
- International bearing giants:Sweden: SKF (SKF group)Germany: INA/FAG (Schaeffler group)United States: TIMKEN (The Timken Company)Japan: NSK (Nske) NTN (NTN) KOYO (Guang Yang) NACHI (fujikoshi)NMB (Mei Beiya) THK (main line, unit FYH (bearing) main bearings etc.)
- Q: I feel different from other factories, ah, there is no pungent smell!
- You go to Harbin axis Ji'nan company to ask, they are the factory's direct center, can solve your problem
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Lifting sub used for special tools during the drilling of oil, gas and geological exploration
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 10000 set/month
OKorder Service Pledge
OKorder Financial Service
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