62.95mm(2.47835"), 62.94mm To 63.06mm, Chrome Steel Bearing Balls For Bearing, G40 Or G60
Description
Most bearing rings and rolling elements are made of special steel. High-carbon chromium bearing steel (GCr15 and GCr15SiMn and ZGCr15 and ZGCr15SiMn) are used to manufacture ferrules and rolling elements with high hardness.
Bearings made of high-carbon steel chromium bearing steel are generally suitable for operating temperatures ranging from -40 to 130 degrees, and oil and grease lubrication are normal. It can meet the requirements of general machinery. After high-carbon chromium bearing steel bearing parts have been tempered at high temperature, their working temperature can be as high as 250 degrees.
High-carbon chromium bearing steel is a large type of bearing steel, and is the most commonly used steel for manufacturing bearings and bearing parts. The most commonly used high-carbon chromium bearing steels are GCr15 and GCr15SiMn. The former is the most used in my country's bearing industry.
The smelting quality of bearing steel is relatively high. Because the content and distribution of non-metallic inclusions have a great influence on the life of bearing steel, it is necessary to strictly control the content and distribution of sulfur, phosphorus and non-metallic inclusions. The basic quality requirements of bearing steel are purity and uniform organization. Purity means less impurity elements and non-metallic impurities, while a uniform structure means that the carbides in the steel should be fine and evenly distributed. The more inclusions, the shorter the life span. In order to improve the quality of smelting, electric furnace smelting and electroslag remelting have been adopted, and new processes such as vacuum smelting and vacuum consumables refining can also be used to improve the quality of bearing steel.
We mainly produce chrome steel, the size is 7.9375mm ~ 82.55mm. The main material is high chromium GCR15 or GCR15SiMn. Our balls are mainly used in the wind energy industry. The ball has high precision, good surface finish, standard hardness, and excellent wear resistance. Products are exported to Europe, America, Japan, South Korea and other countries and regions.
Influencing Factor
1. The influence of material density: steel balls, cast iron balls, alloy steel balls, etc. Different materials have different densities. The density of steel is higher than that of cast iron. The density of alloy steel is determined according to the density and content of the main alloying elements.
2. Influence of steel ball manufacturing method: Rolled and forged steel balls have a dense structure, so the density is very high. The structure of cast steel ball, cast iron balls or cast alloy ball is not very dense, and even has pores, so the density is low.
3. The influence of the metallographic structure of the steel ball: the density under different crystal structures such as martensite, austenite, bainite, and ferrite is also different, which also affects the fineness of the crystal.
4. The influence of chemical composition elements: The different chemical compositions contained in the finished steel ball, such as iron, carbon, chromium, manganese, sulfur, phosphorus, etc., will affect the hardness and impact wear of the steel ball to varying degrees. Generally speaking, steel balls with large chromium content have higher wear resistance.
Application
Our steel balls can be used in many industrial fields, such as wind power bearing, rolling media, ball bearings, vibration polishing, linear motion components.
Product Details
| Product Name |
High Chrome Grinding Steel Balls |
| Size range |
Ø 62.94 mm - Ø 63.06 mm(GCr15SiMn/SUJ3/100CrMn6 high Chrome Steel Balls) |
| Quality grades |
G40 or G60 for balls Ø62.94mm to 63.06mm |
| Hardness |
For 63mm group ball,
a minumun core hardness at centre of the ball shall be HRc55.
minumun hardness at surface of the ball shall be HRc60.
minumun hardness at depth of 15% ball diameter shall be HRc58.
|
| Application |
The High Quality Chrome Steel Balls are mainly applied in Deep Groove Ball Bearing, Angular Contact Ball Bearings, Thrust Ball Bearings, Wheel Hub Bearings, Linear Bearings,wind turbine bearing, slewing ring bearing and also the Bearing. |
| Deep Groove Ball Bearings |
Deep Groove Ball Bearings are the most common type of rolling bearing. The basic type of deep groove ball bearings consist of an outer ring, an inner ring, a set of steel balls and a set of retainers. The types of Deep groove ball bearings have single row and double row. According to different structure, deep groove ball bearing could be divided into seal type and open type. Open type means the bearing has no seal structure and seal type deep groove ball bearing has also dustproof seal and oilproof seal two types. The material of dustproof seal cover is stamping steel, can only prevent dust entering bearing raceway. The oilproof seal can prevent spillover of the inner grease. The code of single row deep groove ball bearing is 6 and the code of double row deep groove ball bearing is 4. Deep groove ball bearing has simple structure, easy to use, high speed etc.
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Specification
| Basic Information |
| Material |
GCr15,GCr15SiMn,SUJ2,52100,100Cr6 |
| Metric Size |
7.9375mm - 82.55mm |
| Inch Size |
0.3125” – 3.25” |
| Grade |
G10, G16, G20, G28, G40, G60, G100 |
| Chemical Composition |
| |
C% |
Si% |
Mn% |
Cr% |
Cu% |
C% |
| 52100 |
0.98~1.10 |
0.15~0.35 |
0.25~0.45 |
1.30~1.60 |
|
0.98~1.10 |
| GCr15 |
0.95~1.05 |
0.15~0.35 |
0.25~0.45 |
1.40~1.65 |
0.25 |
0.95~1.05 |
| GCr15SiMn |
0.95~1.05 |
0.45~0.75 |
0.95~1.25 |
1.40~1.65 |
0.25 |
0.95~1.05 |
| 100Cr6 |
0.93~1.05 |
0.15~0.35 |
0.25~0.45 |
1.35~1.60 |
|
0.93~1.05 |
| SUJ2 |
0.95 or 1.10 |
0.15 or 0.35 |
0.50 max |
1.30~1.60 |
|
0.95 or 1.10 |
| Mechanical Properties |
| |
GCr15 |
GCr15SiMn |
| Density(g/cm3) |
7.8 |
7.8 |
| Hardenability |
Good |
Excellent |
| Wear Resistance |
Excellent |
Excellent |
Product Tags:
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62.94mm 62.95mm 63.06mm Chrome Steel Bearing Balls Bright Surface Anti Abrasion Images
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