With machine builders focusing on lower costs, gearhead suppliers are
maximizing their designs to create value.
"With our most recent products, we have been addressing what has become
a very price-sensitive market," says Howard Horn, Micron Product Line Manager
for Thomson Industries Inc.
Horn says utilizing a planetary design
offers opportunities for cost-reduction for the Thomson Micron brand, a major
supplier of higher end, helical planetary gearboxes. A helical planetary
gearbox has a more complex bearing design and higher precision gearing.
Materials selection on the housing and other components also make a big impact
on the cost of the product.
Engineers can expect this trend to lower
cost, "middle-range" performance products to continue as OEMs try to reduce
component costs by as much as 30 percent.
GEARHEADS FOCUS ON
COST AND CONVENIENCE
XTRUETM true planetary gearheads from Thomson are available in 40-, 60-, 80-,
120- and 160-mm frame sizes. The new gearheads
are specifically engineered to move large loads more easily and quietly with
True PlanetaryTM gearing by providing improved load capacity and lower
backlash. They deliver precise 13
arc-min operation, with torque capacity up to 876 Nm and ratio availability of
3:1 through 100:1. A tapped face output
enables easy, drop-in replacement for similarly configured European
gearheads. The Micron flexible
RediMountTM mounting system enables the gearhead to be mounted to any motor in
three easy steps by simply aligning, mounting and tightening the unit. All XTRUE components are RoHS-compliant (EU
Directive 2002/95/EC).
GEARHEAD OFFERS
OPTIONAL OUTPUT FACES
Parker's Electromechanical Automation Division has expanded their line
of PV115 gearheads. The gearheads offer
an assortment of output face options and high radial load and output torque
performance. Output face options have
the same output face dimensions as Parker Bayside's PX series, Alpha's LP
series, Neugart's PLE series and Stober's PE series, as well as standard NEMA
output face dimensions. The PV115 also
supports larger belt actuators, including Parker's HPLA120 and HLE150. The design achieves high radial loads by
using precision taper roller bearings. With high input speeds and efficiency up
to 97 percent, PV gearheads are targeting industrial applications such as belts and
pulleys, conveyors and production machinery, automotive production and
inspection equipment, medical and life science applications, device
manufacturing, pharmaceuticals and packaging.
PLANETARY GEARBOX
FOR BRUSH AND BRUSHLESS DC MOTORS
New G30A planetary gearboxes for Pittman® DC motors offers
superior torque, shaft loading capabilities and low audible noise characteristics
in a small, lightweight and economical package.
Standard diameters measure 1.200 inch for round versions and 1.496 inch
for square types. Gearbox lengths range from 0.895 to 1.585 inch and gearboxes
weigh from 3.9 to 6.6 oz. The gearboxes
can achieve reduction ratios to 46656:1 in 4:1, 5:1 and 6:1 multiples. Maximum load capabilities range from 106
oz-in (0.75 Nm) for one-stage models up to 1,250 oz-in (8.80 Nm) for versions
with four stages or greater. Sintered
steel planet gears promote torque capacity and reduce audible noise. Single-piece carrier plates with integral
planet posts and sun gear can be arranged to achieve a desired reduction ratio.
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