In-Line Gearboxes
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In-Line Gearboxes | Inline Planetary Gearbox
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Ever-Power offers standard and customized in-collection gearboxes to meet the needs of nearly any movement or power transfer app. Our inline gearboxes are manufactured for low backlash overall performance. They are precision built to provide reliable assistance in even the most demanding operations.

Read “10 Facts to consider to Get the Gearbox YOU WILL NEED” for assistance in finding the best and most effective equipment reducer option for the application. “Inertia and the usage of Inertia Figures” provides an example and a formula for dealing with inertia in gearbox selection.
Custom Inline Gearbox Solutions
All of the inline gear drive models below could be customized to fit your performance and app requirements. Ask for a quote on a custom gearbox or get in touch with Ever-Power to discuss your unique needs.
High Speed In-Line Spur Gear Box
In-Line Spur
High Performance, 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 Equipment Reducer Options
Gearboxes are known by many different brands, including gear drives, reducers, gear reducers, acceleration reducers, and gearmotors. All terms can be used more or less interchangeably when refering to inline planetary gear reducers.
Spur In-Line Gearboxes
Ever-Power offers a complete line of compact, light-weight spur equipment inline planetary equipment reducers. These inline gearboxes can be direct mounted to motors or used in combination with shaft coupling. Ratios from 2:1 to 625:1 can be found, with torque values which range from 0.13Nm to 90Nm.
Input speed: 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 were created particularly for encoder applications. They employ a low minute of inertia at the shaft input, and are rated for insight 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 can be found 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 much better than 8 arc/minute. These inline gearboxes are made for applications where space is limited, and are offered either as a shaft input or installed 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 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 (light weight aluminum or steel), and are outfitted with ball bearings throughout. Our inline planetary gear reducers offer flexible motor mounting options and will deliver result torques up to 380 Nm. Ratios from 3:1 to 36:1 are available.
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 because high as 380Nm
Speed Increaser Gearboxes
Our low ratio Encoder gearboxes and inline taper gearboxes can also be used as gear quickness increasers, if needed.
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Input speeds since high as 4,000 RPM
Available with equipment ratios up to 3600:1
Customized gearboxes available
Completely machined from block housings
Ball bearings upon all shafts
Ever-Power offers a wide collection of misalignment shaft couplings 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 the application. Contact Ever-Power to discuss 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 an ideal match for motors with high insight speeds, or when gearmotor performance is important. Contact our technical sales personnel for help identifying which gearbox solution is best for you.