In-Line Gearboxes
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In-Line Gearboxes | Inline Planetary Gearbox
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Ever-Power planetary gear reducer offers regular and customized in-range gearboxes to meet the needs of almost any movement or power transfer software. Our inline gearboxes are designed for low backlash performance. They are precision created to provide reliable assistance in even the many demanding operations.

Read “10 Points to Consider to obtain the Gearbox You Need” for assistance in finding the best and most effective gear reducer option for the application. “Inertia and the usage of Inertia Figures” provides an example and a method for coping with inertia in gearbox selection.
Custom Inline Gearbox Solutions
All the inline gear drive models below can be customized to fit your performance and application requirements. Request a quote on a custom gearbox or contact Ever-Power to go over your unique needs.
High Speed In-Series Spur Gear Box
In-Line Spur
High Performance, Low Backlash Velocity 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 gear drives, reducers, gear reducers, rate reducers, and gearmotors. All terms 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 can be immediate mounted to motors or used in combination with shaft coupling. Ratios from 2:1 to 625:1 are available, with torque values ranging 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 moment of inertia at the shaft input, and so 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 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 speeds up 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 equipment reducer boxes with backlash equal to or better than 8 arc/minute. These inline gearboxes are created for applications where space is bound, 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 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 really rugged and compact. These planetary gearboxes have fully-machined housings (aluminum or steel), and so are outfitted with ball bearings throughout. Our inline planetary equipment reducers offer flexible engine mounting options and may 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 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 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 as 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 broad collection of misalignment shaft couplings in ” and metric bore sizes. ” and metric Precision Surface Shafts are available from stock.
Contact Us for High Performance 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 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 effectiveness is important. Get in touch with our technical sales staff for help identifying which gearbox remedy is best for you.