Roller Pinion Racks

The Nexen Roller Pinion System (RPS) presents a fresh take on traditional rack and pinion systems, offering improved possibilities for linear and rotary motion control. By addressing the limitations of conventional drive systems, the RPS delivers enhanced performance in terms of accuracy and efficiency.

The RPS features a patented design that incorporates bearing-supported rollers within the pinion. These rollers engage with a unique tooth profile, ensuring there is zero backlash. As a result, the pinion rollers smoothly glide along a tangent path and operate with minimal friction, providing a quiet and efficient motion.

The installation process for the RPS is straightforward, thanks to a simple alignment tool that ensures positional accuracy across multiple rack sections. The system is designed for reliable and easy operation, maintaining constant positional accuracy regardless of the distance traveled.

Features

Fully customizable, including the finish, the RPS can be designed to meet the specific needs of any application.

Key features include:

Zero Backlash
Lube Free Operation
No Cumulative Error
High Corrosion Resistance
99% Efficient
Accuracy of ±30μm [ .001 in]
Rated Life of up to 30 million contacts
Speeds of up to 11 m/s [36 ft/s]
Unlimited Length Possible

Applications

Nexen’s Rack and Pinion System offers an infinite number of design possibilities in applications like:

Alternative to ball screws and rack & pinion
Cartesian robots
Dirty and corrosive environments
Custom drilling and angular cutting machines
Food Processing
Gantry Router
Non-destructive Testing Medical Imaging
Measurement systems
Multi-head on a common axis
Stainless steel requirements
Plasma and laser cutting
Vacuum environments
Welding and Woodworking

Industry Problems	Ball Screws	Traditional Rack/Gear & Pinion Systems	Ball Drives	Chain Drives	Linear Motors Direct Rotary Stages Direct Drive Motors	Nexen Roller Pinion Systems
Low Accuracy			X	X		High Position Accuracy
Backlash / Vibrations	X	X	X	X		Near-Zero Backlash
High Cost	X	X			X	Economical, Efficient Components
Dirty Operation	X	X	X	X		No Dust Emissions
High Maintenance	X	X		X	X	Little to No Maintenance
Low Load Capacity			X		X	High Load Capacity
Noisy	X	X	X	X		Quiet: pinion rollers glide smoothly along teeth
Low Speed	X	X				Hi Speeds (up to 11 m/sec)
Magnetic Field						No magnetic field
Hi Wear / Low Life	X	X	X	X		Long Life (up to 36 million meters)
Limited System Length/Size	X		X	X	X	Custom Rack Sizes & Modular Components

For more information
call Norman G Clark ☏ 03 9116 9200
or visit nexengroup.com

Linear Motion Control

Nexen’s Precision Linear Motion technology integrates high-precision drive systems and brakes, including the Roller Pinion System (RPS) and Linear Precision Brakes. This complete, zero backlash drive and brake system, combined with Rail Brakes and Rod Locks, offers unlimited options for holding or emergency stopping loads in linear applications.

Roller Pinion Racks

Nexen’s Roller Pinion System (RPS) revolutionises linear and rotary motion control, surpassing traditional rack and pinion systems with increased accuracy and efficiency.