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:What does 7 represent? What does the rest represent? If 7 is changed into other numbers, what does it represent?
- M stands for BrassIf 7 replaced by other figures, it is not a complete bearing model, if 7 replaced the suffix of the letter should be replacedSKF bearings are now too many fakes, you can try to use the Taiwan ZNQ, can replace imported bearings
- Q:Can I use other types of bearings instead? What's the model instead of the bearing? Thank you
- There is no PN307 modelWith RN307, cylindrical roller bearings, bore 35Then consult me
- Q:why the inner ring of a knock on the broken, and other small manufacturers desperately not broken, is the material problems or other reasons? The hardness is about the same. LYC62 another 63. How can this be explained? Seek expert advice!
- May not be annealed, hard, dryPay attention later
- Q:Excuse me, what about the units that sell bearings, what else do they sell? Excellent answer again from 40 points, thank you
- Sell hardware toolsSpecifically, screws, oil seals, pliers, wrenches, V-belt lubrication, drills, taps, sealants, welding rod, small appliances, switches and so on
- Q:Why are the front fork bearings of the GY6 so difficult to buy, smaller than others?
- GY6 pedal motorcycle, in addition to the crankshaft on the right side of the starting driven gear, there is a reverse Taiwan screws, other screws include the front fork, each screw is thread.
- Q:when the ball bearings bear the equivalent dynamic load doubled, how will the bearing life changes? When other conditions are constant, how will the life of the bearing change when the speed of the ball bearing is doubled?
- 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:SKF bearing samples provide full set of SKF bearing samples, and other brand samples
- This specific or contact their company is more appropriate
- 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:How are the double seal bearings and other pattern bearings on the specifications and models?
- Bearing type codeImports of bearings commonly used type code (refers to the beginning of the model numbers or letters, such as 6200, 6 is the beginning of deep groove ball bearings, NU, NJ for cylindrical roller bearings):Self-aligning ball bearing - 1;
- Q:FAG bidirectional thrust angular contact bearing 234416M.SP can be replaced by other manufacturers?
- Japan NSK Code: 80TAC20XLJapan NTN code name: 562016SKF code name: 234416TN9/SPDomestic HRB Code: new code name: 234416. Old code name: 2268116
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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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