Product Description
1: Diameter: Ø0.3~ø100mm
Properties of grade
Grade | Density g/cm3 | Hardness HRA(hv) | T.R.S(MPa) | Performances & applications recommended |
YG6 | 14.9 | 89.5 | 2150 | Good Wear resistance, used for hard wood,processing original wood,aluminium section bar,brass rod and cast iron. |
YG8 | 14.6 | 89 | 2320 | Suitable for the roughening of cast iron and light alloys and also for the milling of cast iron and low-alloy steel. |
Dia.(mm) | Dia.(inch) | Dia.(mm) | Dia.(inch) |
2 | 3/38 | 8 | 23/73 |
2.38125 | 3/32 | 9.525 | 3/8 |
2.5 | 6/61 | 10 | 37/94 |
3 | 2/17 | 11.1125 | 7/16 |
3.175 | 1/8 | 12 | 43/91 |
3.969 | 5/32 | 12.7 | 1/2 |
4 | 3/19 | 13.494 | 17/32 |
4.7625 | 3/16 | 14 | 43/78 |
5 | 12/61 | 14.2875 | 9/16 |
5.556 | 7/32 | 15 | 13/22 |
6 | 13/55 | 15.875 | 5/8 |
6.35 | 1/4 | 16 | 17/27 |
7 | 8/29 | 19.05 | 3/4 |
7.938 | 5/16 | 20 | 37/47 |
Tolerances: AFBMA Ball Tolerances Table | |||||
Grade | Sphericity in inches | Sphericity in mm | Basic Diameter Tolerance in inches | Basic Diameter 2 in mm | Maximun Surface Roughness |
G3 | 0.000003" | 0.0000762mm | +/-0.00003" | +/-0.000762mm | 0.5 |
G5 | 0.000005" | 0.000127mm | +/-0.00005" | +/-0.00127mm | 0.8 |
G10 | 0.000010" | 0.000254mm | +/-0.0001" | +/-0.00254mm | 1 |
G25 | 0.000025" | 0.000635mm | +/-0.0001" | +/-0.00254mm | 2 |
G50 | 0.000050" | 0.00127mm | +/-0.0002" | +/-0.00508mm | 3 |
G100 | 0.0001" | 0.00254mm | +/-0.0005" | +/-0.0127mm | 5 |
G200 | 0.0002" | 0.00508mm | +/-0.001" | +/-0.0254mm | 8 |
G500 | 0.0005" | 0.0127mm | +/-0.002" | +/-0.0508mm | |
G1000 | 0.001" | 0.0254mm | +/-0.005" | +/-0.127mm |
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