CEAC-2022-03-March

New Products
Sapphire and Ruby Balls Miniature,
Hard, Precise and Non-Magnetic
A full line of miniature high-precision sapphire and ruby balls
for use in instruments, metering equipment, and other precision
mechanisms where low-friction bearings, long-life and
dimensional accuracy are important, have been introduced
by Meller Optics, Inc. of Providence, R.I.
Meller sapphire and ruby balls are single-crystal materials
with zero porosity that are chemically inert and extremely
resistant to abrasion, heat and high pressure. Featuring
Mohs 9 hardness which is second only to diamond, they come
in 42-inch and metric sizes from 0.1 mm to 0.5" dia. with
0.000025" sphericity and ±0.0001" basic diameter tolerance.
Suited for orifice applications up to 50,000 psi and numerous
bearing applications, Meller sapphire and ruby balls have
a 2,000°C melting point, 0.2 coefficient-of-friction, and a
refraction index of 1.76 microns at 20°C, and are non-magnetic.
For optical applications, these balls can be drilled and
precision ground into miniature plano-convex lenses.
Meller sapphire and ruby balls are priced according to material,
size and quantity, and are delivered from stock. Samples
are available upon request.
For more information contact Meller Optics, Inc., ATTN: Dale
DeJoy, Marketing, 120 Corliss St./P.O. Box 6001, Providence,
RI 02940, or call (800) 821-0180, FAX (401) 331-0519, email
dale@melleroptics.com or visit www.melleroptics.com.
Meller’s sapphire and ruby balls for various applications are available in metric
sizes from 0.1 mm to 0.5" dia. with 0.000025" sphericity and ±0.0001"
basic diameter tolerance.
‘Heated’ about your chiller’s performance?
CHILL OUT
We’ve got you covered with
50 TECHNICIANS
and 85 YEARS
OF EXPERIENCE!
HVAC SERVICES
MAINTENANCE
DESIGN/BUILD SOLUTIONS
RETROFIT SOLUTIONS
708-345-1900 | AIRCOMFORT.COM
56
| Chief Engineer