NON-Meg. Drill Collar can ensure that hardness, toughness, impact value and corrosion resistance
- 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.Introduction：
Nonmagnetic drill collar is made by Nonmagnetic steel, material forging through rigorous analysis of the chemical composition, it can ensure that hardness, toughness, impact value and corrosion resistance can agree API standard. Nonmagnetic drill collar has good low permeability and well machining performance.
2.The size and specification of nonmagnetic drill collar
screw thread no.
| OD | ID内 | Length mm | Shoulder fillet diameter台肩倒角直径 | bending strength ratio 弯曲强度比 | ||
In
| mm | in | mm | ||||
NC23-31 | 79.4 | 31.8 | 9150 | 76.1 | 2.57:1 | ||
NC26-35 | 88. 9 | 38.1 | 9150 | 82.9 | 2.42:1 | ||
NC31-41 | 104.8 | 50.8 | 2 | 9150 or 9450 | 100.4 | 2.43:1 | |
NC35-47 | 120.7 | 50.8 | 2 | 9150 or | 114.7 | 2.58:1 | |
NC38-50 | 127.0 | 5 | 57.2 | 9150 or 9450 | 121.0 | 2.38:1 | |
NC44-60 | 152.4 | 6 | 57.2 | 9150 or 9450 | 144.5 | 2.49:1 | |
NC44-60 | 152.4 | 6 | 71.4 | 2-13/16 | 9150 or 9450 | 144.5 | 2.84:1 |
NC46-62 | 158.8 | 57.2 | 9150 or 9450 | 149.2 | 2.91:1 | ||
NC46-62 | 158.8 | 71.4 | 2-13/16 | 9150 or 9450 | 150.0 | 2.63:1 | |
NC46-56 | 165.1 | 57.2 | 9150 or 9450 | 154.8 | 2.76:1 | ||
NC46-56 | 165.1 | 71.4 | 2-13/16 | 9150 or 9450 | 154.8 | 3.05:1 | |
NC46-47 | 171.4 | 57.2 | 9150 or 9450 | 159.5 | 3.18:1 | ||
NC50-67 | 177.4 | 71.4 | 2-13/16 | 9150 or 9450 | 159.5 | 2.37:1 | |
NC50-70 | 177.8 | 7 | 71.4 | 2-13/16 | 9150 or 9450 | 164.7 | 2.54:1 |
NC50-70 | 177.8 | 7 | 71.4 | 2-13/16 | 9150 or 9450 | 164.7 | 2.73:1 |
NC50-72 | 184.2 | 71.4 | 2-13/16 | 9150 or 9450 | 169.5 | 3.12:1 | |
NC56-77 | 196.8 | 71.4 | 2-13/16 | 9150 or 9450 | 185.3 | 2.70:1 | |
NC56-80 | 203.2 | 8 | 71.4 | 2-13/16 | 9150 or 9450 | 190.1 | 3.02:1 |
209.6 | 71.4 | 2-13/16 | 9150 or 9450 | 195.7 | 2.93:1 | ||
NC61-90 | 228.6 | 9 | 71.4 | 2-13/16 | 9150 or 9450 | 212.7 | 3.17:1 |
241.3 | 76.2 | 3 | 9150 or 9450 | 223.8 | 2.81:1 | ||
NC70-79 | 247.6 | 76.2 | 3 | 9150 or 9450 | 232.6 | 2.57:1 | |
NC70-100 | 254 | 10 | 76.2 | 3 | 9150 or 9450 | 237.3 | 2.81:1 |
279.4 | 11 | 76.2 | 3 | 9150 or 9450 | 266.7 | 2.84:1 | |
3.Pictures
4.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: Excuse me, what about the units that sell bearings, what else do they sell? Excellent answer again from 40 points, thank you
- Can select some bearings related transmission products, such as,Bearing housings, chains, belts, gears, etc.. In addition,Bearing accessories: tight setting sleeve, slip sleeve, lock nut and so onMaintenance and lubrication products: installation tools, bearings, hydraulic tools, grease lubricator and etc.The other is that some small mechanical parts, such as nuts, washers, etc.The key is to see the need to sell things, even if you no matter how good things nobody bought is no good, so that you can look into the market, or try to sell, sell.
- Q: Isn't it the middle question or the other question? I'm looking for glfore to do the test. Did anyone do that?
- Possible in the middle. There may be other problems. You can try with them. Excellent
- 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: Can I use other types of bearings instead? What's the model instead of the bearing? Thank you
- Hello, please check the model of this bearing in detailThere is no PN307 modelWith RN307, cylindrical roller bearings, bore 35Then consult me
- Q: How can I solve this problem? FifteenOur motor is used in the submersible pump, the speed in the 3000 turn around /min, now excessive vibration occurs, or for a better quality of the bearing vibration is too large, please professional prawns, this is what reason? How to solve?
- It is estimated that the bearing clearance is too large to cause vibration. If the original pump work environment temperature of 20 degrees, now 5 degrees. When the thermal expansion of the bearing decreases and the clearance becomes larger, the vibration of the motor will be too large. It is suggested that the clearance bearings be selected according to the running temperature and speed of the motor.
- Q: Machine specific, please describe the specific points
- Outer spherical bearings: spherical roller bearings with wide outer rings and outer rings with locking elements. Mainly for simple housingsLinear motion bearing: two roller, in the direction of rolling has relatively linear motion of rolling bearingsBall bearing: the rolling body is the rolling bearing of the ballDeep groove ball bearings: ball bearing continuous groove of each ring has a cross section of the ball about three weeks of the raceway, suitable for precision instruments, low noise motor, automobile, motorcycle and general machinery, is the most widely used type of bearings in machinery industry. Simple structure, use and maintenance convenient. Mainly used to bear radial load, also can withstand certain axial load, when the bearing radial clearance increased, with the performance of angular contact ball bearings, can withstand higher axial loads. The bearing friction coefficient is small, high limit speed, different size and forms. Solid and durable, strong versatility and low noise operation, easy to install and can be run at a high speed. The design of deep groove ball bearing and sealing, without lubrication and no maintenance. Separate with ball gap and double ball bearings, suitable for heavy load. Condition.Thrust ball bearings: rolling bodies are thrust ball bearingsRoller bearings: rolling bodies are roller bearingsCylindrical roller bearings: rolling bodies are cylindrical roller radial roller bearings, is a separate type bearings, installation and disassembly is very convenient. Cylindrical roller bearings are divided into single, double and four column
- Q: What's the other size of the outer diameter 15?
- Different kinds, different sizes and thicknesses can not answer you.
- 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: 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: 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.
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NON-Meg. Drill Collar can ensure that hardness, toughness, impact value and corrosion resistance
- 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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