?6.96 Tungsten Carbide Bearing Ball
Introduction
?6.96 tungsten carbide ball is exclusively used as bearings ball, which is made from the material of tungsten carbide. With features of high hardness, high wear resistance and long lifespan.
Processing
?6.96 tungsten carbide bearing ball has the similar processing with other tungsten carbide products, the detail as follows: Powder → Blending → Wet Milling → Mixing → Smash → Dried → Sifting → Add Forming Agent → Dried Again → After Sifting Prepared Mixes→ Granulation → Cold Isostatic Pressing → Molding → Sintering → Molding (blank) → Grinding → Packaging → Storage.
Grinding Grades and Tolerance Standard
| Grade | Roundness | Diameter Tolerances | Maximum Surface Roughness |
| G3 | 0.000003" | +/- .00003" | 0.5 |
| G5 | 0.000005" | +/- .00005" | 0.8 |
| G10 | 0.000010" | +/- .0001" | 1.0 |
| G25 | 0.000025" | +/- .0001" | 2.0 |
| G50 | 0.000050" | +/- .0002" | 3.0 |
| G100 | 0.0001" | +/- .0005" | 5.0 |
| G200 | 0.0002" | +/- .0010" | 8.0 |
General Grade and Properties
| Grade | Composition(%) | Physical Properties | ||||
| TC | Co | Ni | Density(g/cm3) | Hardness(HRA) | T.R.S.(N/mm2) | |
| YG6 | Balance | 6 | / | 14.6-15.0 | 91 | 1600 |
| YG8 | Balance | 8 | / | 14.4-14.8 | 89 | 1800 |
| YG6X | Balance | 6 | / | 14.6-15.0 | 92 | 1450 |
| YN6 | Balance | / | 6 | 14.5-14.9 | 90 | 1450 |
| YN8 | Balance | / | 8 | 14.4-14.8 | 88 | 1650 |
| YN12 | Balance | / | 12 | 14.0-14.4 | 86 | 1800 |