Precision Glass Balls

Profile
Hartford Technologies produces Soda Lime glass balls and
Borosilicate glass balls. Applications include check valves for chemical,
pharmaceutical, food processing and fuel systems, and grinding media.
Precision glass balls are available in matte, polished or ground finishes.

Hartford precision glass balls can be manufactured to a 100,000/10,000
clean room standard. To ensure the highest quality, a unique high-speed
visual inspection system 100% confirms the diameter, roundness,
and purity of each ball.

Precision Glass Balls from Hartford have:

• High corrosion resistance
• Light weight (1/3 of stainless steel)
• Low coefficient of friction
• High dimensional stability
• Tight tolerances
• Non-magnetic
• Zero porosity
• Stable material cost

Download Precision Glass Balls Specifications

Soda Lime Precision Glass Balls

Characteristics
Soda lime precision glass balls will not stand thermal shock;
can mechanically give continual service at 230°F.; stands limited static
and torque load; good electric and corrosion resistant properties.

Density
2.4 gm/cm continuous operating temp. 230°F

Continuous Operating Temperature
230°F

Surface Finish
Ground - 20-30 RMS
Polished - 10-20 RMS

Sizes
1/16 through 1" in ground, polish, or matte grades.

Borosilicate 8330 Precision Glass Balls

Characteristics
Borosilicate glass balls withstand high thermal shock; can mechanically
give continual service at 450°F with extreme temperature limit at 900°F;
very high electrical resistivity and dielectric strength; high chemical stability,
withstands high applied torque loads.

Density
2.2 gm/cm

Continuous Operating Temperature
450°F

Surface Finish
Ground - 20-30 RMS
Polished - 10-20 RMS

Sizes
1/16 through 1" in ground, polish, or matte grades.

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Precision Glass Balls

Email us regarding your interest in Borosilicate precision glass balls
and soda lime precision glass balls.

Hartford Technologies is a leading American manufacturer of custom precision glass balls, and bearing assemblies,
precision rollers, pins, and shafts with manufacturing facilities in the U.S. and China. We provide comprehensive
value-added services, including application engineering and inventory management, to a customer base that
spans automotive to medical, leisure products to agriculture.

Hartford customers include leading OEMs, and diverse, specialized manufacturers on four continents. Our commitment
is to combine technical innovation with agility, responsiveness and institutional strength - strength that comes from a
conservative management team, global manufacturing and logistics capability, and more than 80 years of leadership.