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Product Description
Tungsten carbide precision ground balls, commonly known as tungsten steel balls, are made of tungsten carbide. They are sintered in a vacuum furnace or hydrogen reduction furnace with micron-sized powders of carbides of high-hardness refractory metals and binders such as cobalt, nickel, and molybdenum. Precision ground balls are further processed on the basis of blank balls.
Their surface finish can reach G25, with high precision, small tolerance, and good roundness. They have excellent hardness, wear resistance, corrosion resistance, and bending resistance. Common specifications include G25 and G50, and materials include YG6, YG6X, YG8, etc. The diameter can be customized according to customer requirements. They are widely used in high-end fields such as precision bearings, instruments and meters, aerospace, etc., and are excellent alternatives to steel ball products.
Sizes for Choosing
OEM/ODM welcomed.
| Common Diameters(mm) | Common Diameters(mm) | Common Diameters(mm) | Common Diameters(mm) | Common Diameters(mm) | Common Diameters(mm) |
| 1.588mm | 4.763mm | 9.0mm | 14.288mm | 19.05mm | 34.925mm |
| 2.0mm | 5.0mm | 9.525mm | 15.0mm | 20mm | 38.100mm |
| 2.381mm | 6.0mm | 10.0mm | 15.875mm | 22.225mm | 40.000mm |
| 2.5mm | 6.35mm | 11.1125mm | 16.0mm | 25.4mm | 42.000mm |
| 3.0mm | 7.144mm | 12.0mm | 16.669mm | 26.988mm | 42.8625mm |
| 3.175mm | 7.938mm | 12.7mm | 17.463mm | 28.575mm | 44.450mm |
| 3.969mm | 8.0mm | 13.494mm | 18.0mm | 30.000mm | 50.800mm |
| 4.0mm | 8.731mm | 14.0mm | 18.256mm | 31.750mm |
Grinding Grades
| Precision Class | Variation | Spherical | Surface | Tolerance | Lot Variation |
| G3 | 0.0762um | 0.0762um | 0.0127um | ±0.762um | 0.127um |
| G5 | 0.127um | 0.127um | 0.02um | ±1.27um | 0.254um |
| G10 | 0.254um | 0.254um | 0.0254um | ±2.54um | 0.508um |
| G15 | 0.381um | 0.381um | 0.0254um | ±2.54um | 0.762um |
| G16 | 0.4064um | 0.4064um | 0.0254um | ±2.54um | 0.8128um |
| G24 | 0.6096um | 0.6096um | 0.0508um | ±2.54um | 1.2192um |
| G25 | 0.635um | 0.635um | 0.0508um | ±2.54um | 1.27um |
| G48 | 1.2192um | 1.2192um | 0.0762um | ±5.08um | 2.4384um |
| G50 | 1.27um | 1.27um | 0.0762um | ±7.62um | 2.54um |
| G100 | 2.54um | 2.54um | 0.127um | ±12.7um | 5.08um |
| G200 | 5.08um | 5.08um | 0.2032um | ±25.4um | 10.16um |
