二. 轴承钢球，铬钢球，滚珠，铬钢珠，轴承钢珠:
1.材质: GCr15 440 440c;
2.规格: 0.5mm--152.4mm
3.级别: G10----G100;
三.微型钢球，小钢珠，小型钢球:
1.材质:
不锈钢(20L,420,440,440C);
轴承钢GCr15;
碳钢;
2.规格: 0.5mm-----2.5mm
0.5mm, 0.6mm, 0.7mm , 0.8mm,0.9mm,1.0mm, 1.2mm,1.25mm,1.30mm,1.35mm,1.40mm,1.45mm,1.50mm,1.588mm,1.60mm,1.65mm,1.75mm,2.0mm
3.级别: G16--G100;
四. 特大轴承钢球，大型钢球，特大钢球：
1.特大轴承钢球规格:30MM----152.4MM
2.特种GCR15钢球具体规格:
30mm, 30.163mm, 31mm, 31.75mm, 32mm, 33.338mm, 34mm, 35mm, 34.925mm, 36.513mm, 38.1mm, 39.688mm, 40mm, 41.275mm, 42.863mm, 44.445mm, 4 5mm, 46.625mm, 50mm, 50.8mm, 53.975mm, 55mm, 57.15mm, 60mm, 60.325mm, 63.5mm, 69.85mm,. 70mm, 75mm, 76.2mm, 80mm, 88.9mm, 90mm, 100mm, 101.6mm, 110mm, 127mm, 152.4mm
3.轴承钢球材质:
GCr15 AISI52100 SUJ2 100CR6