Metal Components
Metal filters
Custom-engineered cleanable and clog-resistant metal filters are
available for removing suspended solids from a variety of liquids. The
filters feature a smooth working surface with sharp-edged, burr-free
electroformed holes and openings that have wedge-shaped cross
sections designed to prevent clogging. Suited to perform as filters
and prefilters to prolong the life of membranes, the components can
incorporate shapes and holes with diameters of 0.0001 to 0.08 in.
and tolerances as fine as ±0.5 μm. These filters can have as many
as 1 million holes per square inch. Made from nickel with optional
protective coatings, they can be manufactured in sizes ranging from
1⁄ 8 in. square to 3 ft square with thicknesses of 0.001 to 0.012 in.
■ Stork Veco International Inc.
BURLINGTON, MA
www.storkvecousa.com
Springs for implantables
Miniature springs are designed to help medical device OEMs enhance
orthopedic device performance without significantly affecting design
requirements or cost. Made of medical-grade titanium, these canted-coil
springs demonstrate high performance and durability for implantable
devices that act like joints in the human body. The springs can ensure
smooth rotary motion in such applications as a ball-and-socket
carpometacarpal device used to replace diseased or arthritic joints and
restore movement. The springs’ retaining capabilities can minimize the
possibility of dislocation.
■ Bal Seal Engineering Inc.
FOOTHILL RANCH, CA
www.balseal.com
Spring washers
A supplier offers a range of stock precision components that
includes metal spring washers and mechanical spring struts.
Suitable for use in medical devices, the Belleville line of washers
is available in spring steel or stainless steel. These washers are
designed for applications in which a high load capacity is needed
but deflection space is limited and there is not enough room for
a compression spring. By stacking the washers, users can gain
additional load and deflection. The components can be
stacked in series by alternating one facing up then
one facing down, in parallel by stacking one on
top of the next facing the same direction, or in a
combination of both methods.
■ Associated Spring-Raymond
MAUMEE, OH
www.asraymond.com
Caster
Available with a choice of wheels, a caster features a total-lock brake,
which is not typically found on 2-in.-diam. casters, according to the
supplier. Suited for light loads on smooth surfaces, the Flexello swivel
caster has a load capacity of 110 lb. It is designed for mobile medical
and electronic equipment applications and equipment carts. Using a
plain bearing, the caster has a swivel radius of just under two inches
and its bolt hole/stem size is 3⁄ 8 in. Wheels are offered in polypropylene-on-nylon or gray-rubber-on-nylon.
■ The Revvo Caster Company, Inc.
WEST SENECA, NY
www.revvocaster.com
