Ceramic Balls:

We are special in making Silicone Nitride Balls (Si3N4 Balls), Zicronia Balls (ZrO2 Balls),Sic Ceramic Balls, Aluminum Oxside Valve (AI**3) ceramic balls.

Compared with steel, ceramic materials are noted for their better or particular characters, such as wear-resistance, corrosion resistance, high temperature resistance, electrical insulation (except SiC), non-magnetic, high strength, high rigidity, and low specific gravity. These properties qualify them for replacing steel to make bearings serve in conditions of higher speed, harsh environment and less lube, and decrease wear, noise, vibration and maintenance time of bearings, and eventually increase performance, reliability and life of bearings.
 

Tungsten Carbide balls:

Tungsten Carbide balls are recommended in diffs that don't have prepped rings (sanding the rings lightly on a granite counter top with some **0 grit sandpaper or from a company that does this already). Stock rings typically have a polished finish which can be too slippery for ceramic balls if you don't have patience to set the diff correctly. Our tungsten carbide ball is smoother than the stock steel balls but not as smooth as a ceramic ball, this slight imperfection allows the tungsten carbide ball to perform on the polished rings and allows for a wider tuning window.

Balls Sizes:
1/*2"  (0.**4mm);
0.8mm;
1mm;
1/*6" (1.**8mm);
2mm;
3/*2" (2.**1mm);
2.4mm;
3mm;
1/8" (3.**5mm);
5/*2" (3.**9mm);
3/*6" (4.**3mm);
7/*2" (5.**6mm);
*5/*4" (5.**3mm) ;
1/4" (6.*5mm) ;
*7/*4" (6.**7mm);
9/*2" (7.**4mm);
5/*6" (7.**8mm) ;
*1/*2" (8.**1mm) ;
3/8" (9.**5mm)

Best Regards,
Ella
sales4 [at] freerun-bearing [dot] com