Precision Balls

Glass Balls (Ground & Lapped)

Glass Balls

General Information:
Glass Balls are used in non-return valves, light-duty corrosion-resistant bearings, flowmeters and as insulators. Also available, 'Black Glass' balls with super precision tolerances in sizes from 1/16" to 1/4" diameter for use in medical and chemical flow- meters.
Mechanical Properties:  
Density 0.097 lbs/
Specific Gravity 2.7
Max. Useful Temperature 350 Deg.C
Colour Clear Glass (matt finish)
Size Range:  
Imperial Stock sizes 3/32"" to 3/4"
Metric 2mm to 20mm to special order
  Up to 3/8" Over 3/8"
Basic Dia.Tolerance ±.004" ±.004"
Sphericity .0003" .0006"
Corrosion Resistance:
Glass balls have excellent resistance to most chemicals except hydrofluoric acid. They are not suitable for applications involving thermal or mechanical shock.

ISO 9001:2000

Special Materials

Titanium Carbide
Silicon Carbide
Polycarbonate Resin
Acetal Resin
Carpenter 20 Cb-3
M-50 High Speed Steel Cubic Zirconia
Silicon Nitride
Optical Quality Glass