Synthetic Ruby Sphere, Grade 25, 0.2187" Diameter (Pack of 50)
Characteristics such as extreme hardness, wear resistance, non-corrosiveness and chemical inertness make Synthetic Ruby Balls suitable for anti-friction bearings, contact points, ball and valve seats, linear slides, gyroscopes and probe points. They also provide high mechanical strength, high thermal conductivity, high temperature stability along with low weight, low porosity and low dielectric loss.