Roller Kelly Bushing
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 Piece pc
- Supply Capability:
- 35 Pieces per Month pc/month
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1.roller Kelly bushing
2.HDS HDP M4 S4
3.API Spec 7K ISO9001:2008
4.GB/T 28001-2001
5.GB/T 24001-2004-ISO14001:2004
Roller kelly bushings are used for 17 1/2-49 1/2 inch rotary tables. They are designed and manufactured according to API Spec 7K.
| Type | Way of Drive | Model | Suitable for Kelly | |
Square | Hex. | |||
| Heavy | Square Drive | HDS | 21/2-6 | 3-6 |
Pin. Drive | 27-HDP | 3-6 | 3-6 | |
20-HDP | 3-6 | 3-6 | ||
| Medium | Square Drive | MDS | 21/2-41/4 | 3-41/4 |
M4 | 21/2-51/4 | 3-41/4 | ||
Pin. Drive | 20-MDP | 21/2-41/4 | 3-41/4 | |
17-MDP | 21/2-41/4 | 3-41/4 | ||
Light-duty | Square Drive | S4 | 21/2-41/4 | 3-41/4 |
- Q: Drill 4.2 holes, tap 5 thread, choose what kind of drill sleeve
- Tapping 5 of the thread, drilling 4.2 of the hole, you need to drill sleeve, indicating that the screw hole distance, position tolerances, usually is + 0.1.In general, the tolerance of the drill hole to the choice of F7 is 4.2F7, that is, Phi 4.2 (+0.022 / +0.01).Drill sleeve material, you can choose T8, T10, etc., more than HRC60 quenching.Drill sleeve form can be chosen by oneself (fixed drilling sleeve, quick change drill sleeve, etc.).
- Q: I have seen many drilling techniques in practice, and I find that drilling jigs do not have guiding elements (i.e. drill sleeves). Why do not they use drill sleeves in actual production? And I have seen in many books drilling jig, need drill sleeve of the statement, how is this matter?Reaming in our company is also done by drilling machines. Change the drill bit to the reamer. Do you want reaming?I asked the master of the workshop why the drilling fixture does not need to drill, they do not even know what the drill sleeve is, as if they are in the design of drilling machine clamp, there is no drill sleeve concept.I really don't understand why the drilling jig is using drill sleeves If it is for the tool, you can put on a processed product, and then the tool is ok. Why?
- In the actual drilling process, the drilling machine fixture should have guiding element (drill sleeve), why does your company not use drill sleeve in actual production?There may be several reasonsThe 1 bit and the products to be machined are fixed, and the drill bit has sufficient positioning for steel2 the shape tolerance of the hole to be drilled has no requirementThe 3 bit has a self - located cutting edgeReaming generally does not require additional positioning, the pre drilling itself plays a guiding role. In particular, there are positioning
- Q: Can the drill jig designed in mechanical processing be without drill bush?
- Less quantity can be without drill sleeveThe drill sleeve is used for drilling, hardening and tempering, and the hardness is improved
- Q: How do you determine the size of the drill sleeve with a drill diameter of 6?. Thank you
- The inner diameter of the general drill sleeve can be chosen by H9, but the deformation of the drill sleeve after the quenching has to be considered
- Q: How should the drill bit of the 4mm bit be calculated?
- The drill bit for the 4mm is generally larger than the drill sleeve about 4 or 0.03Such coordination is more accurateSpecific access to relevant GB requirements
- Q: Specific depends on what number you are cone sets, you can compare:0 1:19.212 9.0451 1:20.047 12.0652 1:20.020 17.783 1:19.922 23.8254 1:19.254 31.2675 1:19.002 44.3996 1:19.180 63.348
- 0∶19.212 9.0451∶20.047 12.0652∶20.020 17.783∶19.922 23.8254∶19.254 31.2675∶19.002 44.3996∶19.180 63.348
- Q: What kinds of drill sleeves are used? What are they used for?
- Drill sleeve is divided into fixed drilling sleeve and fast change drill sleeve two kinds. A fixed drill sleeve is used for drilling only. Quick drill bushing, is generally the first to remove the drill sleeve on the drilling, reaming and reaming.
- Q: I wonder if it works Because of the large number of drilled holes, the wear of common steel is relatively large. But T10 steel needs quenching. I don't have any specialized equipment here. Usually it is heated by oxygen acetylene, and then it is quenched by oil. I wonder if T10 steel is good. What about the deformation? Outside diameter 15mm, inner hole 8.6MMIf not, what is the best way to do it? Or what to replace?
- As the drill material set is the first choice of bearing steel GCr15, the quenching temperature is 835 ~ {850 cooling medium: oil, the tempering temperature is 150 ~ 170 hardness can reach 61 ~ 65}, GCr15 bearing steel with good hardenability, high abrasion resistance, high fatigue life. In general industry, this material is commonly used as drill sleeves. Carbon tool steel T10 drill can also set {the quenching temperature is 780 cooling medium: water or oil, the tempering temperature is 200 ~ 250 hardness of 60 ~ 64} in the use of performance is far better than GCr15 bearing steel. If there is no professional heat treatment equipment should pay attention to the quenching temperature and tempering temperature, especially the quenching temperature is 835 ~ 850 and I hope to help you.
Equipped with excellent equipment, strong technique force and completed test facilities, the company is a first-level supply member of Chinese Petroleum and Natural Gas Consortium, as well as the member of China Petrochemical Material Resources Market. We have obtained the Production License issued by the nation.we believe that our company will usher in a new takeoff in the near future.
1. Manufacturer Overview
| Location | Jiangsu,China |
| Year Established | 2000 |
| Annual Output Value | |
| Main Markets | North America South America Mid East Central America |
| Company Certifications | ISO 9001:2008;ISO 14001:2004 |
2. Manufacturer Certificates
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period |
3. Manufacturer Capability
| a) Trade Capacity | |
| Nearest Port | |
| Export Percentage | |
| No.of Employees in Trade Department | |
| Language Spoken: | English, Chinese |
| b) Factory Information | |
| Factory Size: | 10,000-30,000 square meters |
| No. of Production Lines | 4 |
| Contract Manufacturing | OEM Service Offered Design Service Offered Buyer Label Offered |
| Product Price Range | Low and/or Average |
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Roller Kelly Bushing
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 Piece pc
- Supply Capability:
- 35 Pieces per Month pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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