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Roller Pinion System for Linear Motion Control
Nexen offers an advanced new technology that revolutionizes
linear motion. The Roller Pinion System (RPS) provides zero
backlash, very high positional accuracy, unlimited length, very
high speeds, 99% efficiency, high rigidity, low noise, low
maintenance, corrosion resistance, and long life. This opens up
new design possibilities and provides the capability to achieve
much higher levels of performance in machine designs.
The RPS’s unique design eliminates many of the limitations of current linear drive systems like:
Ball Screws: Limited by critical speed, maximum speed, cumulative error, vibration, thermal expansion,
supplemental cooling, noise, low efficiency, maintenance, and life.
Traditional Rack and Pinion: Limited by low accuracy and speed, backlash, tooth fatigue, noise, high cost of
dual and split pinion systems, high maintenance, and short life.
Belt Drives: Limited by low accuracy, backlash, low load capacity, short lengths, belt stretch, and low rigidity.
Linear Motors: Limited by low load capacity, high cost, strong magnetic fields, and liquid cooling.
Zero Backlash /
High Precision
The RPS’s innovative meshing action provides backlash of less than 3.2 um [0.00013 in.] and due to
the extremely precise manufacturing process provides positional accuracy up to ± 20 um
[± 0.00079
in.]. Each tooth profile is precisely measured relative to the first to ensure that high positional accuracy is
maintained and cumulative error is eliminated. |
High
Speed Capability
The RPS system can achieve speeds, up to 11 m/sec (36.1 ft/sec), that can normally only be obtained by
linear motors while providing high positional accuracy. Ball screws speed capabilities are much lower and
diminish with length.
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Unlimited
Travel Length
The RPS system is modular in design with 1 meter and 1/2
meter segments that can be combined as needed to meet your
application requirements. Segments can also be cut to shorter
lengths as needed. This greatly improves stocking, availability,
cost, and replaceability. Segments are joined with a special tool
that uses the rack teeth to transfer the positional accuracy of the
previous rack to the next. |
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Applications |
- Gantry
Systems
- Machine
Tools
- Material
Handling
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Transfer Equipment
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- Robotics
- Inspection
Equipment
- Packaging
Machinery
- Food
Processing
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For
detailed Roller Pinion System product information, click
here.
or
Click here to contact a Nexen
technical representative.
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