Plastic
balls are ideal for light load bearings and flow control
applications. Plastic balls are often used in the
construction of office furniture and medical equipment
because of their quiet operation. Plastic balls are
often used extensively in pharmaceutical, food and
chemical production.
Plastic Balls have low friction and require virtually
no lubrication. They are much lighter than metal balls
and are resistant to corrosion and abrasion. Many
plastics are also resistant to high temperatures up
to 600° F. There are a variety of plastics available
and each has different characteristics, so feel free
to contact us and we will help you select the polymer
best suited for your application and budget.
Many plastic balls are manufactured from injection
molded blanks. There is the potential for voids inherent
to the injection molding process. Note: void-free
plastic balls are a special request requiring custom
quotation and special manufacture.
Click on the links below for physical properties:
Acetal
Balls (Delrin®)
is similar to nylon but slightly harder and denser.
Recommended for applications where these properties
and low water absorption are required.
Acrylic
Balls (Lucite, Plexiglass)has
high optical quality and tensile strength. It
also has a high resistance to heat distortion and
has a highly polished finish.
Nylon
Balls (Zytel®,
Polymide) is used in check valves, light load bearings,
knobs and toggle switches and other applications where
low cost and resiliency are more important than hardness.
Nylon has good resistance to alkalis, petroleum products
and various mild chemicals.
Polyamide-imide
Balls (Torlon) has one of the
highest resistance to heat of all the plastics.
It also has high strength, dimensional stability and
impact resistance. It is designed for bearing
and wear applications.
Polyethylene
Balls (High Density) is an FDA
approved plastic. It is more stress crack resistant
than Polyethylene Low Density.
Polyethylene
Balls (Low Density) is an FDA
approved plastic. It is lightweight and soft.
Polypropylene Balls
are characterized by low weight and water absorption
and resistance to corrosion. Typical applications
include fluid level gauges, flow meters, valves, blood
transfusion kits, vapor and evaporation shields for
electrolytic solutions.
Polyurethane Balls are
a relatively soft material that provides a good seal
at low pressure in non return valves and excellent
wear resistance. Polyurethane is not recommended for
use with acids and alkalis.
Polytetrafluorethylene
Balls (Teflon®)
are a well known non-friction material which is resistant
to most corrosive agents and is electrically nonconductive.
Teflon is particularly suitable for use in apparatus
designed to handle cryogenic liquids and acids.
Rubber Balls are
a soft 70 durometer Buna-N nitrile compound which
is highly recommended for all applications where the
ball is exposed to a variety of popular hydraulics
in fluids of water. Rubber balls are ground to a very
close tolerances to provide outstanding performance
in critical sealing applications. |
