In-Line Gearboxes
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In-Line Gearboxes | Inline Planetary Gearbox
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Ever-Power offers standard and customized in-series gearboxes to meet the needs of almost any movement or power transfer program. Our inline gearboxes are manufactured for low backlash functionality. They are precision built to provide reliable service in even the most demanding operations.

Read “10 Points to Consider to obtain the Gearbox YOU WILL NEED” for assistance to find the best & most effective gear reducer option for your application. “Inertia and the Use of Inertia Figures” has an example and a method for dealing with inertia in gearbox selection.
Custom Inline Gearbox Solutions
All of the inline gear drive models below can be customized to fit your performance and program requirements. Ask for a quote on a custom gearbox or contact Ever-Power to discuss your unique needs.
High Speed In-Series Spur Gear Box
In-Line Spur
High Performance, Low Backlash Swiftness Reducer Gearbox
Encoder, Low Backlash
In-Line Low Backlash Taper
In-Line Low Backlash Taper
Servo Gearbox | Planetary Gearbox | Servo Gear Reducer
Epicyclic Servo / Planetary

Inline Planetary Equipment Reducer Options
Gearboxes are known by many different titles, including equipment drives, reducers, equipment reducers, speed reducers, and gearmotors. All conditions can be used more or less interchangeably when refering to inline planetary equipment reducers.
Spur In-Line Gearboxes
Ever-Power offers a complete line of compact, light-weight spur equipment inline planetary gear reducers. These inline gearboxes can be direct mounted to motors or used with shaft coupling. Ratios from 2:1 to 625:1 are available, with torque values which range from 0.13Nm to 90Nm.
Input acceleration: up to 4,000 RPM
Precision machined aluminum housing
Dual ball bearings upon all shafts
Encoder Low Backlash In-Line Gearboxes
These compact, light-weight, low backlash gear drives are designed specifically for encoder applications. They have a very low minute of inertia at the shaft insight, and so are rated for insight speeds up to 3,000 RPM. Gear ratios from 4.96:1 to 3600:1 can be found, in two frame sizes. Synchro cleats for our encoder gearboxes can be found from stock.
Result torque: 1 oz.-inch
Backlash: 15 arc-minutes (at any ratio)
Ratios from 4.96:1 to 3600:1
Input boosts to 3,000 RPM
Diameter: 1-1/16” or 1-3/4”
Black anodized aluminum housing
303 stainless steel gears and shafts
Ball bearings
Low Backlash Inline Taper Gearboxes
Our taper gearmotors are inline planetary gear reducer boxes with backlash add up to or much better than 8 arc/minute. These inline gearboxes are designed for applications where space is bound, and are available either as a shaft insight or mounted to a 24V DC motor.
Low backlash: ≤8 arc/min. at input
Compact design
Shaft input or with mounted motor
Ratios from 2:1 to 16:1
Output torque ideals from 1.14Nm to 12.7Nm
Epicyclic (Planetary) Servo Gearboxes
The Ever-Power line of internal epicyclic servo reducers are really rugged and compact. These planetary gearboxes possess fully-machined housings (light weight aluminum or steel), and so are outfitted with ball bearings throughout. Our inline planetary gear reducers offer flexible electric motor mounting options and will deliver output torques up to 380 Nm. Ratios from 3:1 to 36:1 can be found.
Low backlash: ≤30 arc/min. at input
Input speeds as high as 3,000 RPM
Precision machined aluminum housings
Dual ball bearings upon all shafts
Obtainable in ratios from 3:1 to 36:1
Output torques since high as 380Nm
Speed Increaser Gearboxes
Our low ratio Encoder gearboxes and inline taper gearboxes may also be used as gear acceleration increasers, if needed.
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Input speeds because high as 4,000 RPM
Available with gear ratios up to 3600:1
Customized gearboxes available
Fully machined from block housings
Ball bearings upon all shafts
Ever-Power offers a wide selection of misalignment shaft couplings in in . and metric bore sizes. Inch and metric Precision Surface Shafts can be found from stock.
Contact Us for POWERFUL Inline Gear Drives
Demand a quote on a custom made inline gearbox for your application. Contact Ever-Power to go over your custom requirements.
GEARBOX REDUCERS
Correct angle gearboxes (worm and planetary) are rugged and built for 90° turns. Inline reducers (parallel shaft and planetary) are a perfect match for motors with high insight speeds, or when gearmotor performance is important. Get in touch with our technical sales personnel for help identifying which gearbox solution is most beneficial for you.