Gears

- Badges:
Zero Backlash

Start your search...

Family

About our Gears

Nexen's Roller Pinion Gear System (RPG) includes a patented pinion consisting of bearing-supported rollers and a proprietary tooth profile. Potential configurations include gears and gear segments with either external or internal teeth, which can be configured to meet the application. Gears pre-installed on heavy-duty bearings are also available.

Nexen's design opens new machine design possibilities and enables much higher performance, and provides the following:

  • High Positional Accuracy
  • Zero Backlash
  • No Cumulative Error
  • Low-Velocity Ripple
  • High Speed
  • Rigidity
  • Low Noise
  • Low Maintenance
  • Corrosion Resistance
  • Long Life

High Indexing Precision 
Nexen's Roller Pinion Gear Systems offer unmatched mechanical system capabilities with an indexing precision of up to ± 1.7 ArcSec and repeatability of up to ± 0.3 ArcSec. 

Zero Backlash 
Unlike other mechanical drive systems, Nexen’s Gears offer zero backlash. 

High Speed 
Nexen's Roller Pinion Gear Systems can handle speeds up to 607 RPM, and unlike traditional cam-driven systems, it can handle peak torque inputs at any time. This allows for faster indexing times than other options. 

Solutions, including gears and gear segments with either external or internal teeth, can be configured to meet the specification. Pre-installed gears on heavy-duty bearings are also available.

Resources

Videos(s)

RPS Gear Segment Installation

Compare our Roller Pinion Gears

FULL RINGFULL RING and SEGMENT Gears SEGMENT Gears

 

Full Ring Gears

Full Ring Gears

Segment Gears

Segment Gears

Teeth Orientation External or Internal External or Internal
Gear Ratio 3:1 to 110:1 2.2:1 to 170:1
Maximum Dynamic Torque Up to 19,252 Nm [170,395 inlb] Up to 24,383.3 Nm [215,811 inlb]
Nominal Torque Up to 19,252 Nm [170,395 inlb] Up to 17,112.7 Nm [151,460 inlb]
Maximum Backlash 0 ArcSec 0 ArcSec
One-Way Positional Accuracy As accurate as ± 3.0 ArcSec As accurate as ± 1.7 ArcSec
One-Way Repeatability As accurate as ± 0.8 ArcSec As accurate as ± 0.3 ArcSec
Maximum Velocity Up to 1,333 RPM Up to 546 RPM
Rotational Inertia 0.01 to 18.6 kgm²
[0.24 to 441.8 lbft²]
0.002 to 48.07 kgm², per segment
[0.048 to 1141.81 lbft²]
Outer Diameter 122 to 2,686 mm
[4.80 to 105.75 in]
408 to 7,428 mm
[16.06 to 292.44 in]
Arc Segment N/A, 360° complete ring gear 9° to 238°, most but not all segments can create full rings.
Mounting Pilots on I.D. on External Tooth Gears,
Pilots on O.D. on Internal Tooth Gears
Pilots on I.D. on External Tooth Gears,
Pilots on O.D. on Internal Tooth Gears
Finish Dense Hard Chrome or Black Oxide Dense Hard Chrome or Black Oxide

 

ROLLER Pinions ROLLER Pinions

 

Roller Pinions

Roller Pinions

Maximum Dynamic Torque Gear Dependent
Nominal Torque Gear Dependent
Maximum Backlash 0 ArcSec
One-Way Positional Accuracy Gear Dependent
One-Way Repeatability Gear Dependent
Maximum Velocity Up to 1,820 RPM
Rotational Inertia 0.00004 to 0.21866 kgm²
[0.00095 to 5.19382 lbft²]
Mounting ISO-9409 Flange Mount: 12 to 80 mm pilot
Shaft Mount with Locking Collar: 10 to 60 mm
[0.625 to 1.250 in]
Finish Dense Hard Chrome, Nickel Plated, Stainless Steel

Required Components and Accessories for our Gears

Listed below are some of the Required Components and Accessories for Gears. Use the filters above to find the complete list of Required Components and Accessories on the product page.

Required Components

  • Roller Pinions
  • Gear Alignment Tool

Accessories

  • Grease

 

Applications

Nexen's Gears and gear segments allow precise movement and positioning in your application.  A few applications that Nexen's gears have been used in are:

  • Cutting Systems

  • Gantry Systems

  • Medical Products

  • Robotics

  • Aerospace

  • Machine Tool

  • Semiconductor

  • Material Handling

More Information

Not finding what you are looking for?

 

Note: The technical data on this website is subject to change without notice. Please contact Nexen for help with your application, appropriate sizing, and configuration.