BEST QUALITY OF STAINLESS STEEL BALL WITH LOW PRICE
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 600000 pc/month
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Specifications
1 inch stainless steel ball bearing
1)100% original
2)High precision
3)good resistance and no spots
5)ISO 9001:2008 SGS
Product Description
440C bearing steel balls are our main product.
Our best precision of them is G16( the ball diameter variation is 0.4um max. )
Diameter from 2.0mm to 1'' are all ok to us.
Our hot sizes: 2.0mm 2.381mm 2.5mm 3.175mm(1/8'') 4.763mm(3/16'') 5.0mm 5.5mm 6.0mm 6.35mm(1/4'') 7.144mm(9/32'') 7.938mm (5/16'') 8.731mm 9.0mm 9.525mm(3/8'') 11.1125mm(7/16'') 12.7mm(1/2'') 9/16'' 5/8'' 3/4'' 1'' ...
Usually we also have some stock of them.
Technology
MATERIAL | C% | Si% | Mn% | P% | S% | Cr% | Mo% | Ni% | N |
AISI440C | 0.95-1.20 | 1.00 | 1.00 | 0.03 | 0.03 | 16.0-18.0 | 0.4-0.75 | 0.6 | \ |
AISI420C | 0.42-0.5 | 1.00 | 1.00 | 0.04 | 0.03 | 12.5-14.5 | \ | 1.0 | \ |
| Precision(Grade) | ball diameter variation | deviation from spherical | surface soughness | lot diameter variation | nominal ball deviation tolerance |
| Vdwa | Sph | Ra | Vdwl | Tdn | |
| not over(um) | |||||
| G10 | 0.25 | 0.25 | 0.025 | 0.5 | * |
| G16 | 0.4 | 0.4 | 0.032 | 0.8 | * |
| G20 | 0.5 | 0.5 | 0.05 | 1 | * |
| G40 | 1.0 | 1.0 | 0.08 | 2 | * |
Advantages
For high precision 440c stainless steel ball bearings, the roundness and surface roughness is very important.
For roundness, we use roundness measuring equipment.
For surface roughness, we use 100 times microscope and 500 times microscope.
We will check each Lot no. steel balls before packing.
- Q:What are the general technical requirements for casting parts?
- Satisfy appearance quality (appearance defect, quality change, size deviation)Intrinsic quality (composition, properties, internal organization)Service performance (abrasion resistance, corrosion resistance, heat resistance, pressure resistance)
- Q:Heat treatment process and purpose of casting parts
- Natural aging (also known as Chang Hua): lost in the open, the sun and rain, can have experienced years of wind and frost.
- Q:Casting blank in the cooling process to release a large amount of heat energy, what can be recycled?
- General Casting Factory Casting Division will be in your chart marked on shrinkage and processing margin figure (usually with red and green pen) to the patternmaker production of wood or other material mould diagram.
- Q:Why does the precision casting factory not usually make iron castings?
- Because it is too cheap, the design of materials is cast iron, generally do not have very high requirements.
- Q:How much is the amount of electrophoretic paint per square meter used in the casting?
- It was a very simple question, and it was complicated by what you said.In general, when the final thickness of 15-20 microns, cathode electrophoresis paint can be coated per kilogram of 6-8 square meters, the current general cathode electrophoresis paint for the price of 22 yuan / kg, so the cathodic electrophoresis electrophoresis paint cost at 4 yuan / square meters.
- Q:What's the cause of the choking of the casting?,
- 3. when casting the environment is humid, sand mold has not removed the moisture, when the casting, the moisture instantaneous transforms into the steam, causes the blowhole
- Q:What is the ejection angle of the die casting (Tan Gang)?
- Because after the wax, wax parts will have a slight contraction, which is good for demoulding. Many moulds don't do the ejection angle
- Q:The casting sand is going on
- Dispersed sand inclusion is common on the surface and subcutaneous of steel castings, often concentrated on the outer surface of the upper box and the inner surface of the lower case, and a few of them are inside the cast steel parts.
- Q:How to calculate the price of casting parts?
- According to the complexity of the workpiece, material and casting requirements and process yield
- Q:As shown, how do I achieve the tightness test of this product, and achieve industrial production? Seek expert advice.
- Precise and tight sealing of the surface to which the test piece is to be tested, equipped with an airtight test instrument, and an electrical control system. You can complete automated testing equipment
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BEST QUALITY OF STAINLESS STEEL BALL WITH LOW PRICE
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 600000 pc/month
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OKorder Financial Service
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