Gears
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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
Gears' Technical Data
Videos(s)
RPS Gear Segment Installation
Compare our Roller Pinion Gears
FULL RING and 
SEGMENT Gears
|
Full Ring 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 |
|
| 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
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Medical Products
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Robotics
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Aerospace
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Machine Tool
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Semiconductor
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Material Handling
More Information
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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.