Inline & MultiDrive Planetary Gearheads

A planetary gearhead is a compact and efficient type of gear system that uses three main components: the sun gear at its center, multiple planet gears that rotate around the sun gear, and an outer ring gear with internal teeth that mesh with the planet gears.

This arrangement allows for the even distribution of load across the gears, resulting in high torque transmission and speed reduction, all within a smaller footprint compared to other gear designs.

Its unique configuration makes planetary gearheads ideal for applications where both space and power are at a premium.


Advantages of Planetary Gearheads

  • High Torque Output: Planetary gearheads are ideal for applications requiring high torque transmission due to their load distribution across multiple gears.
  • Compact Design: Despite their ability to handle high torque, planetary gearheads are compact, making them suitable for space-constrained applications.
  • High Efficiency: These gearheads typically boast high efficiency ratings, often above 95%, meaning minimal energy loss during power transmission.
  • Low Backlash: Planetary gearheads offer precise motion control and reduced backlash, which is ideal for robotics, CNC machinery, and servo systems.

Key Specifications

  • Gear Ratios: Planetary gearheads come in a range of gear ratios, allowing customization based on speed reduction and torque multiplication needs. Typical ratios range from 3:1 to 100:1.
  • Efficiency: As mentioned, planetary gearheads usually have an efficiency of 90-97%, depending on the number of stages.
  • Torque Capacity: The torque rating can range from a few Nm to several thousand Nm, depending on the application and configuration.
  • Input Speed: Planetary gearheads can handle high input speeds, sometimes exceeding 10,000 RPM, making them versatile in many motion control systems.
  • Axial and Radial Load Capacity: These gearheads are designed to handle high radial and axial loads, which adds to their reliability in demanding applications.

Applications of Planetary Gearheads

  • Robotics: Used for precise movement and high-torque applications in robotic arms and actuators.
  • Packaging Machinery: Ensures fast and efficient motion with minimal backlash for accuracy in packaging.
  • Industrial Automation: Planetary gearheads are integral in servo systems for controlling automation processes that demand both precision and durability.
  • Medical Devices: Their compact size and precise motion control make them ideal for medical instruments and diagnostic equipment.
  • CNC Machinery: These gearheads provide the needed precision and torque for controlling cutting tools and workpiece movements.

Key Performance Factors

  • Backlash: Low backlash planetary gearheads are essential for high-precision applications where even slight deviations can affect the output.
  • Durability and Lifespan: Gear material, heat treatment, and quality of lubrication play crucial roles in extending the lifespan of a planetary gearhead, especially in demanding industrial applications.
  • Thermal Performance: Planetary gearheads with improved thermal management capabilities are crucial in systems where high continuous operation can lead to overheating.

Options and Customization

Many planetary gearheads offer customizable configurations:

  • Mounting Options: These can be shaft-mounted or flange-mounted, depending on the application’s requirements.
  • Integrated Sensors: Some gearheads include encoders or other sensors to monitor speed and position.
  • Sealing Options: For applications requiring protection from dust or liquid ingress, various sealing options are available.

Inline and Multidrive Planetary Gearhead Products:

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XTRUE Micron Gearheads by Boston Gear

XTRUE Micron Gearheads

For applications requiring high performance and easy installation.

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ValueTRUE Micron Gearheads by Boston Gear

ValueTRUE Micron Gearheads

Low cost and ideal for environmentally sensitive applications.

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UltraTRUE Micron Gearheads by Boston Gear

UltraTRUE Micron Gearheads

For robotics, aerospace, packaging equipment, and more.

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NemaTRUE Micron Gearheads by Boston Gear

NemaTRUE Micron Gearheads

For medical devices, robotics, aerospace, and more.

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DuraTRUE Micron Gearheads by Boston Gear

DuraTRUE Micron Gearheads

For applications that require high precision & low backlash.

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AquaTRUE Micron Gearheads by Boston Gear

AquaTRUE Micron Gearheads

For food/beverage handling, packaging, and dispensing.

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DL-PH-055-005 by Gam Enterprises

DL-PH-055-005

70 mm Frame, Parallel, In-line, Planetary, Solid Shaft Output, 5:1 Ratio, 35 Nm Max Cont. Torque

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V-T-045-020S-M1033-H1569-C0349 by Gam Enterprises

V-T-045-020S-M1033-H1569-C0349

V-T-045-020S GEARBOX

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HPN-A Harmonic Planetary Gearboxes by Harmonic Drive

HPN-A Harmonic Planetary Gearboxes

Delivers high torque, low backlash, and smooth operation with helical gears for precision robotics and automation tasks.

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DL-PH-055-010 by Gam Enterprises

DL-PH-055-010

70 mm Frame, Parallel, In-line, Planetary, Solid Shaft Output, 10:1 Ratio, 35 Nm Max Cont. Torque

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DL-PH-055-025 by Gam Enterprises

DL-PH-055-025

70 mm Frame, Parallel, In-line, Planetary, Solid Shaft Output, 25:1 Ratio, 35 Nm Max Cont. Torque

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DL-PH-055-050 by Gam Enterprises

DL-PH-055-050

70 mm Frame, Parallel, In-line, Planetary, Solid Shaft Output, 50:1 Ratio, 35 Nm Max Cont. Torque

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DL-PH-055-100 by Gam Enterprises

DL-PH-055-100

70 mm Frame, Parallel, In-line, Planetary, Solid Shaft Output, 100:1 Ratio, 35 Nm Max Cont. Torque

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DL-PH-055-150 by Gam Enterprises

DL-PH-055-150

70 mm Frame, Parallel, In-line, Planetary, Solid Shaft Output, 150:1 Ratio, 25 Nm Max Cont. Torque

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DL-PH-075-005 by Gam Enterprises

DL-PH-075-005

50 mm Frame, Parallel, In-line, Planetary, Solid Shaft Output, 5:1 Ratio, 70 Nm Max Cont. Torque

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