In-Line Gearboxes
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In-Line Gearboxes | Inline Planetary Gearbox
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Ever-Power offers standard and customized in-line gearboxes to meet up the needs of nearly any motion or power transfer app. Our inline gearboxes are designed for low backlash overall performance. They are precision created to provide reliable provider in even the the majority of demanding operations.

Read “10 Facts to consider to obtain the Gearbox You Need” for assistance to find the best and most effective gear reducer option for the application. “Inertia and the Use of Inertia Figures” has an example and a formula for dealing with inertia in gearbox selection.
Custom Inline Gearbox Solutions
All the inline gear drive models below could be customized to match your performance and app requirements. Demand a quote on a custom gearbox or get in touch with Ever-Power to discuss your unique needs.
High Speed In-Series Spur Gear Box
In-Line Spur
POWERFUL, Low Backlash Speed 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 Gear Reducer Options
Gearboxes are known by many different brands, including equipment drives, reducers, equipment reducers, speed reducers, and gearmotors. All terms can be used pretty much interchangeably when refering to inline planetary gear reducers.
Spur In-Line Gearboxes
Ever-Power offers a full line of compact, light-weight spur gear inline planetary equipment reducers. These inline gearboxes can be direct mounted to motors or used with shaft coupling. Ratios from 2:1 to 625:1 can be found, with torque values ranging from 0.13Nm to 90Nm.
Input swiftness: up to 4,000 RPM
Precision machined aluminum housing
Dual ball bearings on all shafts
Encoder Low Backlash In-Line Gearboxes
These compact, light-weight, low backlash gear drives are designed specifically for encoder applications. They employ a low minute of inertia at the shaft insight, and are rated for input speeds up to 3,000 RPM. Gear ratios from 4.96:1 to 3600:1 are available, in two frame sizes. Synchro cleats for our encoder gearboxes are available from stock.
Output torque: 1 oz.-inch
Backlash: 15 arc-minutes (in any ratio)
Ratios from 4.96:1 to 3600:1
Input speeds up to 3,000 RPM
Diameter: 1-1/16” or 1-3/4”
Black anodized aluminum housing
303 stainless 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 better than 8 arc/minute. These inline gearboxes are designed for applications where space is limited, 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 insight or with mounted motor
Ratios from 2:1 to 16:1
Output torque values from 1.14Nm to 12.7Nm
Epicyclic (Planetary) Servo Gearboxes
The Ever-Power line of internal epicyclic servo reducers are extremely rugged and compact. These planetary gearboxes possess fully-machined housings (aluminum or steel), and are outfitted with ball bearings throughout. Our inline planetary gear reducers offer flexible engine mounting options and can deliver output torques up to 380 Nm. Ratios from 3:1 to 36:1 are available.
Low backlash: ≤30 arc/min. at input
Input speeds since high as 3,000 RPM
Precision machined aluminum housings
Dual ball bearings on 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 can also be utilized as gear velocity increasers, if needed.
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Input speeds since high as 4,000 RPM
Available with gear ratios up to 3600:1
Customized gearboxes available
Completely machined from block housings
Ball bearings on all shafts
Ever-Power offers a broad selection of misalignment shaft couplings in in . and metric bore sizes. In . and metric Precision Surface Shafts are available 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 discuss your custom requirements.
GEARBOX REDUCERS
Right angle gearboxes (worm and planetary) are tough and built for 90° turns. Inline reducers (parallel shaft and planetary) are a perfect match for motors with high insight speeds, or when gearmotor efficiency is important. Contact our technical sales personnel for help identifying which gearbox answer is most beneficial for you.