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: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: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: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.
- Q:What kinds of drill sleeves are used? What are they used for?
- Drill sleeve can be divided into four kinds, namely: fixed drilling sleeve, interchangeable drill sleeve, fast change drill sleeve, special drill sleeve.Fixed drill sleeve: drill sleeve is directly pressed on the drilling template. The fixing drill sleeve is simple in structure and high in drilling accuracy, but it can not be replaced after wearing. Fixed drill sleeves are suitable for small batch production in a single drilling process.Replaceable drill sleeve: drill is sheathed in the Bush, bushing is pressed on the drilling template, and the drill sleeve is pressed by screw to prevent the drill bush from rotating or withdrawing. When the drill sleeve is worn, loosen the screws and replace them quickly. A single drilling procedure suitable for mass production.Quick change drill sleeve: its structure is similar to interchangeable drill sleeve. When the workpiece in one process has the same hole to be processed by various methods (such as drilling, reaming, reaming, tapping, etc.), the drill sleeve with different apertures can be quickly replaced. When replacing, the drill sleeve gap is turned to the screw and can be taken out.Special drill sleeve: when the structure of the workpiece is not suitable for the use of standard drill sleeve, it can design a special drill sleeve adapted to the workpiece. The height of the drill sleeve is increased by H, the guiding performance is good, the tool rigidity is improved, and the machining accuracy is high, but the abrasion of the drill sleeve and the cutter is intensified, and the H= (1 to 2.5) d is generally taken. The chip space H increases and the chip removal is convenient, but the tool rigidity and the machining accuracy of the hole will be reduced. Cast iron for drilling easier to remove chips, h= (0.3 ~ 0.7) d; drilling difficult to chip out of the steel parts, h= (0.7 ~ 1.5) d.
- 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?
- Drilling holes can not use drilling sleevesReaming will not use reaming, and when the diameter of the hole is large, the method of boring is often used
- Q:Drill 4.2 holes, tap 5 thread, choose what kind of drill sleeve
- 5 of the drill bit where to drill ah, with a drill clip on it!
- 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:Can the drill jig designed in mechanical processing be without drill bush?
- You can drill without a drill sleeve, but that is a special and rare case. The drill sleeve is designed to prevent rapid wear and tear, and the clamp is seldom made of hard material, so most of the cases are made of drill sleeves.Don't set the diamond for example:1. folder specific very small, and simple structure, once in the diameter of 20 of the aluminum rod drill holes, I directly with a piece of Cr12 material made drilling mold, simple and fast2., the production of a single or very small number of cases, in order to save costs, then basically do not consider the amount of wear, you can not drill sleeves.
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 |
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| 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 |
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| a) Certification Name | |
| Range | |
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3. Manufacturer Capability |
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| a)Trade Capacity | |
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| 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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