Page 62 - ENGINEERING REVIEW NOVEMBER 2022_Neat

ENGINEERING
REVIEW TECH INNOVATION

positioning and rotational accuracy to
allow exact positioning even at high
speeds and accelerations.

Robust
Nabtesco gears are extremely robust,
durable and low-wear. They feature
high overload capability and extreme
rigidity, and are insensitive to vibrations.
The integrated angular ball bearings
absorb axial and radial loads, as well
as bending moments, which makes the
gears highly resistant to impacts and
overloads. is then transmitted from the input shaft come with a strong, integrated main
to the crankshafts via the spur gear bearing that boasts large angular ball
Compact stage, and these then shift the cams in bearings and a multitude of rolling
The high torque density of the low- the pin ring and, consequently, generate elements. This allows them to absorb
backlash precision gears enables a reduced speed with high precision. bending moments that are 250% greater
an extremely compact design. The This technology enables the RV gears than the ones that can be absorbed
precision reducers are lightweight, to absorb 5 times the rated torque in by conventional planetary gears of
space-saving, and efficient – ideal for all emergency-stop situations without comparable size. The robust bearing lets
applications requiring high performance suffering any damage. The resulting cycloidal gears also serve as a supporting
and a compact design. overall reduction is the same as the element in a robot / machine or plant,
product of the two reduction ratios (spur eliminating the need for an additional
RS-900A gear stage and eccentric stage). external bearing. This makes it possible
“RV” stands for our gear’s “rotor to manufacture more compact designs,
vector” type of construction, and thus reduce the engineering and installation
also for their extremely high resilience expense and bring down cost.
and precision.
Integrated main bearing:
Advantages • Absorption of great bending moments
• High accuracy (backlash & lost motion : • A supporting machine element
Less than 1 arc.min.) • No additional external bearing required
High shock resistance in emergency • High rigidity • Handling of heavy loads
stop situations • High shock load resistance • Manufacture of more compact robots,
The cam has exactly one eccentric • High torque density (High torque & machines and plants
section less than the pin ring has pins. Compact body) • Reduced costs of engineering &
A 360° revolution of the crankshafts • Wide range of reduction ratios installation.
therefore causes the cams to rotate one • Minimal vibration
pin farther, whereby practically all the For more details:
gear teeth are in continuous contact State-of-the-art bearing concept Website: www.nabtesco.co.in
with the pins. The rotating movement All cycloidal gears made by Nabtesco E-Mail: nti_pn@nabtesco.co.in

Nabtesco gearboxes are being sold to wide range of application in various industries:

58 | NOVEMBER 2022