Xi'an machinery & engineering import & export co.,ltd.
| Payment Terms | L/C, T/T |
| Delivery Time | 30-45days |
| Packaging Details | Plastic bag+ cardon box+ wooden pallet |
| Material | chrome steel, GCr15,SUJ2 |
| Grade | G28 |
| Hardness | HRc62-67 |
| Surface | Lapping, Polished, Flashing |
| Application | ball bearings,Bicycles,Automobile, Machinery |
| Feature | High Precision, High Hardness, Good Wear Resistance, |
| Standard | GB/T308, ISO, ANSI/ABMA, DIN 5401 |
| Service | test report |
| Free samples | supply the samples for test |
| Brand Name | OEM,ODM |
| Model Number | 28.585mm(1.125394 Inch) |
| Certification | SGS,ISO9001,IAF,CNAS |
| Place of Origin | china |
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Product Specification
| Payment Terms | L/C, T/T | Delivery Time | 30-45days |
| Packaging Details | Plastic bag+ cardon box+ wooden pallet | Material | chrome steel, GCr15,SUJ2 |
| Grade | G28 | Hardness | HRc62-67 |
| Surface | Lapping, Polished, Flashing | Application | ball bearings,Bicycles,Automobile, Machinery |
| Feature | High Precision, High Hardness, Good Wear Resistance, | Standard | GB/T308, ISO, ANSI/ABMA, DIN 5401 |
| Service | test report | Free samples | supply the samples for test |
| Brand Name | OEM,ODM | Model Number | 28.585mm(1.125394 Inch) |
| Certification | SGS,ISO9001,IAF,CNAS | Place of Origin | china |
| High Light | 28.585mm Chrome Steel Bearing Balls ，HRc 62 Chrome Steel Bearing Balls | ||
28.565mm(1.125394"),G28, High carbon steel balls for High Precision Ball Bearings
Description
Chromium (CR) has a tendency to increase hardness, toughness and wear resistance of steel. Chrome steel is a chrome alloy carbon steel, not a chrome plated steel.
It has good superior performance, and has excellent wear resistance, deformation resistance, high load capacity and high contact fatigue performance after quenching and tempering.
Modern furnaces with precisely controlled atmospheres and temperatures are used for heat treating to assure uniform hardness and proper microstructure for each steel ball.
The high-carbon chromium bearing steel is a high-carbon alloy steel with 1.30~1.65% chromium. It is characterized by a more uniform and stable structure after heat treatment, high hardness, high uniformity, good wear resistance, high contact fatigue strength, and good dimensional stability and corrosion resistance after annealing, its cutting performance is good and the price is relatively cheap. This steel can meet bearing requirements under normal working conditions.
Chrome steel and other metal balls are manufactured using the following processes
Grade and Precision
| Grade | Hardness | Material | Ball Diameter |
| G28 | HRc 62-67 | GCr15, SUJ2, E52100 | 28.585mm (1.125394") of non standard |
Chemical Composition
| Material | (Cr) | (C) | (Mn) | (Si) | (P) | (S) | (Mo) | (Ni) | (Cu) |
| GCr15 | 1.40% to 1.65% | 0.95% to 1.05% | 0.25% to 0.45% | 0.15% to 0.35% | ≤0.025% | ≤0.020% | ≤0.10% | ≤0.25% | ≤0.25% |
| GCr15SiMn | 1.40% to 1.65% | 0.95% to 1.05% | 0.95% to 1.25% | 0.45% to 0.75% | ≤0.025% | ≤0.020% | ≤0.10% | ≤0.25% | ≤0.25% |
Company Details
Business Type:
Agent,Importer,Exporter,Trading Company
Year Established:
2006
Total Annual:
3000000-5000000
Employee Number:
1~20
Ecer Certification：
Verified Supplier
Established in 2006, Xi'an Machinery & Engineering Import & Export Co.,Ltd.（XMEC) is the successor to Shaanxi Marine and Engineering Import & Export Co., Ltd., which is specialized in importing & exporting mechanical and electrical products, complete equipment, various kinds of... Established in 2006, Xi'an Machinery & Engineering Import & Export Co.,Ltd.（XMEC) is the successor to Shaanxi Marine and Engineering Import & Export Co., Ltd., which is specialized in importing & exporting mechanical and electrical products, complete equipment, various kinds of...
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