In-Line Gearboxes
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In-Line Gearboxes | Inline Planetary Gearbox
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Ever-Power offers regular and customized in-series gearboxes to meet the needs of nearly any motion or power transfer program. Our inline gearboxes are engineered for low backlash functionality. They are precision created to provide reliable assistance in even the most demanding operations.

Read “10 Points to Consider to find the Gearbox YOU WILL NEED” for assistance to find the best and most effective gear reducer option for your application. “Inertia and the Use of Inertia Figures” provides an example and a formulation for dealing with inertia in gearbox selection.
Custom Inline Gearbox Solutions
All of the inline equipment drive models below can be customized to match your performance and software requirements. Request a quote on a custom gearbox or contact Ever-Power to discuss your unique needs.
High Speed In-Line Spur Gear Box
In-Line Spur
POWERFUL, Low Backlash Acceleration 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 names, including gear drives, reducers, gear reducers, swiftness reducers, and gearmotors. All conditions can be used pretty much interchangeably when refering to inline planetary equipment reducers.
Spur In-Line Gearboxes
Ever-Power offers a full line of compact, lightweight spur gear inline planetary equipment reducers. These inline gearboxes could be immediate 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 specifically for encoder applications. They employ a low instant of inertia at the shaft input, and so are rated for input boosts 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 boosts 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 made for applications where space is limited, and are available either as a shaft input 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 ideals 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 have fully-machined housings (light weight aluminum or steel), and so are outfitted with ball bearings throughout. Our inline planetary gear reducers offer flexible motor mounting options and will 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 because 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 as high as 380Nm
Speed Increaser Gearboxes
Our low ratio Encoder gearboxes and inline taper gearboxes can also be used as gear speed increasers, if needed.
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Input speeds because high as 4,000 RPM
Available with equipment ratios up to 3600:1
Customized gearboxes available
Completely machined from block housings
Ball bearings on all shafts
Ever-Power offers a wide collection of misalignment shaft couplings in ” and metric bore sizes. Inch and metric Precision Ground Shafts can be found from stock.
Contact Us for High Performance Inline Gear Drives
Demand a quote on a customized inline gearbox for your application. Contact Ever-Power to go over your custom requirements.
GEARBOX REDUCERS
Correct angle gearboxes (worm and planetary) are durable and built for 90° turns. Inline reducers (parallel shaft and planetary) are a perfect match for motors with high input speeds, or when gearmotor efficiency is important. Contact our technical sales personnel for help determining which gearbox option is most beneficial for you.