Production Range：
● 31.75-250MM
Production Grade:
● G5-G1000
Applications：
● Bearing ● Machinery Manufacturing
● Automotive Industry ● Aerospace Industry
● Oil Drilling ● Electronics Industry
After going through comprehensive hardening treatment, chrome steel balls exhibit excellent wear resistance, high hardness, and strong load-bearing capacity.
EDE Company specializes in the production of bearing steel balls, which are trusted for their superior surface quality and uniform hardness. These steel balls are widely used in bearings, automotive transmission systems, steering systems, and other critical components, providing stable and reliable motion support to ensure smooth operation in various complex environments.
By using bearing steel balls produced by EDE Company, not only the overall performance of the product is improved, but also the driving safety is enhanced.
| Approximate material | ||||||||||
| Material | Number Designtion | Chemical Composition （%） | ||||||||
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu | ||
| 52100 100Cr6 SKF3 SUJ2 GCr15 | 1.3505 | 0.95 - 1.05 | 0.15 - 0.35 | 0.25 - 0.45 | 0 - 0.025 | 0 - 0.025 | 1.4 - 1.65 | 0 - 0.3 | 0 - 0.1 | 0 - 0.25 |
| DIN 5401-2002 | ||||||||
| Dimensional and formt tolerance and surface roughness | ||||||||
| Grade | Nominal Size | Limit deviations | tDws | ∆RSw(≤) | Ra(≤) | VDwL(≤) | IG | Preferred gauges values |
| VDws (≤) | ||||||||
| (mm) | (μm) | (μm) | (μm) | (μm) | (μm) | (μm) | (μm) | |
| G 3 | 0 ~ 12.7 | ± 5.32 | 0.08 | 0.08 | 0.01 | 0.13 | 0.5 | -5 ~ +5 |
| G 5 | 0 ~ 12.7 | ± 5.63 | 0.13 | 0.13 | 0.014 | 0.25 | 1 | -5 ~ +5 |
| G 10 | 0 ~ 25.4 | ± 9.75 | 0.25 | 0.25 | 0.02 | 0.5 | 1 | -9 ~ +9 |
| G 16 | 0 ~ 25.4 | ± 11.4 | 0.4 | 0.4 | 0.025 | 0.8 | 2 | -10 ~ +10 |
| G 20 | 0 ~ 38.1 | ± 11.5 | 0.5 | 0.5 | 0.032 | 1 | 2 | -10 ~ +10 |
| G 28 | 0 ~ 50.8 | ± 13.7 | 0.7 | 0.7 | 0.05 | 1.4 | 2 | -12 ~ +12 |
| G 40 | 0 ~ 100 | ± 19 | 1 | 1 | 0.06 | 2 | 4 | -16 ~ +16 |
| G 80 | 0 ~ 100 | ± 14 | 2 | 2 | 0.1 | * | 4 | -12 ~ +12 |
| G 100 | 0 ~ 150 | ± 47.5 | 2.5 | 2.5 | 0.1 | 5 | 10 | -40 ~ +40 |
| G 200 | 0 ~ 150 | ± 72.5 | 5 | 5 | 0.15 | 10 | 10 | -60 ~ +60 |
| G 300 | 0 ~ 25.4 | ± 70 | 10 | 10 | 0.2 | * | 20 | -60 ~ +60 |
| G300 | 25.4 ~ 50.8 | ± 105 | 15 | 15 | 0.2 | * | 30 | -90 ~ +90 |
| G 300 | 50.8 ~ 75 | ± 140 | 20 | 20 | 0.2 | * | 40 | -120 ~ +120 |
| G 500 | 0 ~ 25.4 | ± 75 | 25 | 25 | * | * | 50 | -50 ~ +50 |
| G 500 | 25.4 ~ 50.8 | ± 112.5 | 25 | 25 | * | * | 75 | -75 ~ +75 |
| G 500 | 50.8 ~ 75 | ± 150 | 25 | 25 | * | * | 100 | -100 ~ +100 |
| G 500 | 75 ~ 100 | ± 187.5 | 32 | 32 | * | * | 125 | -125 ~ +125 |
| G 500 | 100 ~ 125 | ± 225 | 38 | 38 | * | * | 150 | -150 ~ +150 |
| G 500 | 125 ~ 150 | ± 262.5 | 44 | 44 | * | * | 175 | -175 ~ +175 |
| G 600 | all | ± 200 | * | * | * | * | * | * |
| G 700 | all | ± 1000 | * | * | * | * | * | * |
