28.555mm(1-1/8 Inch),G28, High Chrome Steel Balls For Also Ball Bearing
Introduction
GCr15 bearing steel is a kind of high carbon chromium bearing steel with low alloy content, good performance and the most versatile. After quenching and tempering, it has high hardness, uniformity, good wear resistance and high contact fatigue performance. The steel has the characteristics of moderate plasticity, low cutting performance, poor welding performance, high sensitivity to white spots and temper brittleness. GCr15 bearing steel, containing c0.95-1.05, Mn0.25-0.45, Si0.15-0.35.
After precision cleaning and oiling, and before the sample balls in the packaging batch, they should be sent to the final audit to check the surface roughness, roundness, waviness in a precise testing room according to the designated control plan. Variation in batch size and hardness. Once all requirements are met, a test certificate will be prepared for the customer.
We produce chrome steel balls and stainless steel balls, and more balls of various sizes. With a manufacturing plant equipped with the most advanced equipment, we have the ability to meet all your needs
Application
Bearing balls are a type of rolling-element bearing that uses balls to maintain the separation between moving parts. Bearing balls are at the heart of almost every product with a rotating shaft. They are used in bicycles, blenders, washing machines, fans, and many other products.
Often the ideal design solution is not about finding the fastest, sturdiest, most accurate or even the least expensive option. Rather, the ideal solution is the optimal balance of performance, life and cost.
Specification
| Grade |
Hardness |
Material |
Ball Diameter |
| G28 |
HRc 62-67 |
Gcr15(52100,100Cr6,SUJ2) |
28.555mm (1-1/8") with non standard |
All standard balls are always in stock and ready for immediate off-the-shelf delivery. If your application calls for custom balls, send us your specifications and we‘ll gladly meet them.
ABMA Definitions
Grade and Tolerance (ABMA STD-10)
* Grade: A specific combination of dimensional form and surface roughness tolerance. A ball grade is designated by a grade number.
* Ball Diameter Variation: The difference between the largest and the smallest actual single diameter of one ball.
* Lot Diameter Variation: The difference between the mean diameter of the largest ball and that of the smallest ball in the lot.
* Nominal Ball Diameter Tolerance: The maximum allowable deviation of any ball lot mean diameter from the nominal ball diameter.
| precision / Grade |
Ball Diameter Tolerance
Vdws(≤) µm
|
Deviation from Spherical Form
△Rs(≤) µm
|
maximun surface roughness
Ra(≤)µm
|
lot diameter variation
Dwl(≤) µm
|
| G3 |
0.08 |
0.08 |
0.01 |
0.13 |
| G5 |
0.13 |
0.13 |
0.014 |
0.25 |
| G10 |
0.25 |
0.25 |
0.02 |
0.5 |
| G16 |
0.4 |
0.4 |
0.025 |
0.8 |
| G20 |
0.5 |
0.5 |
0.032 |
1 |
| G24 |
0.6 |
0.6 |
0.04 |
1.2 |
| G28 |
0.7 |
0.7 |
0.05 |
1.4 |
| G40 |
1 |
1 |
0.06 |
2 |
| G60 |
1.5 |
1.5 |
0.08 |
3 |
| G100 |
2.5 |
2.5 |
0.1 |
5 |
| G200 |
5 |
5 |
0.15 |
10 |
Product Tags:
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G28 1 Inch Grinding Steel Balls HRc 62 - HRc 67 For Grinding Media Images
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