PF Series High-Precision Spur Planetary Gearbox

The PF Series is a high-precision spur planetary gearbox designed for servo-driven automation and motion-control applications. Its compact planetary structure provides reliable torque transmission, efficient power transfer and stable positioning performance.

Frame Sizes

PF040–PF120

Gear Ratios

3:1–100:1

Low Backlash

≤6–10 arcmin

Cost-Effective Design

Economical Spur Gears

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Overview

The PF Series combines a compact planetary structure with a simple and reliable spur gear design, providing stable torque transmission and practical positioning performance for industrial motion systems. Its economical design makes it a suitable choice for applications that do not require ultra-low backlash.

With multiple frame sizes, 1-stage and 2-stage configurations, and reduction ratios from 3:1 to 100:1, the PF Series is suitable for packaging machinery, automated production equipment, CNC auxiliary axes and general industrial automation.

PF Series Key Features

The PF Series is designed for cost-effective precision transmission, combining reliable spur gear performance, compact planetary construction and a wide reduction ratio range for industrial automation applications.

Spur Gear Transmission

Simple and reliable spur gear structure provides stable torque transmission and dependable performance.

Cost-Effective Solution

The simpler spur gear design offers a more economical solution for applications that do not require ultra-low backlash.

Compact Planetary Design

The planetary structure provides high torque density in a compact housing for space-limited installations.

Wide Ratio Range

1-stage and 2-stage configurations provide reduction ratios from 3:1 to 100:1 for different speed and torque requirements.

PF Series Models & Selection

Model	Frame Size	Stages	Ratio Range	1-Stage Backlash	2-Stage Backlash	Noise
PF040	40 mm	1 / 2	3:1–100:1	≤8 arcmin	≤10 arcmin	≤68 dB
PF060	60 mm	1 / 2	3:1–100:1	≤8 arcmin	≤10 arcmin	≤70 dB
PF080	80 mm	1 / 2	3:1–100:1	≤6 arcmin	≤8 arcmin	≤72 dB
PF090	90 mm	1 / 2	3:1–100:1	≤6 arcmin	≤8 arcmin	≤72 dB
PF120	120 mm	1 / 2	3:1–100:1	≤6 arcmin	≤8 arcmin	≤74 dB

Note: Available ratios vary by reduction stage and model, and some reduction ratios may be available in more than one stage configuration. Full-load efficiency is ≥97% for 1-stage and ≥94% for 2-stage configurations. Protection rating: IP64. Operating temperature: 0°C to +90°C. Service life: approximately 20,000 hours under specified operating conditions.

PF Series Spur Planetary Gearbox Dimensions & Drawings

The drawings shown below are for PF80 configurations matched with servo motors. Input-side shaft, flange and adapter dimensions may vary when matched with stepper motors, BLDC motors or brushed DC motors. Please share your motor model or drawing for dimensional confirmation.

PF80 Series 1-Stage Dimensions

Ratios: 3:1 / 4:1 / 5:1 / 8:1 / 10:1

PF80 1-stage servo planetary gearbox drawing, ratio 3:1 to 10:1

PF80 Series 2-Stage Dimensions

Ratios: 15:1 / 16:1 / 20:1 / 25:1 / 30:1 / 35:1 / 40:1 / 50:1 / 70:1 / 100:1

Drawings & CAD Files

PF80 1-stage and 2-stage drawings (PDF) and 3D models (STEP) are available for standard servo motor configurations. For other frame sizes or motor interfaces, please share your motor model or drawing for confirmation.

Download PF80 PDF Drawings Download PF80 3D Models

PF Series Motor Compatibility

The PF Series spur planetary gearbox can be matched with servo motors, stepper motors, BLDC motors and brushed DC motors using suitable adapter flanges and input shaft configurations for automation, positioning and speed-reduction applications.

Compatible Motor Types

Industrial servo motor compatible with PF Series planetary gearbox

Servo Motors

Suitable for positioning, indexing and servo-driven automation applications.

Stepper Motors

Suitable for compact positioning, indexing and repetitive motion systems.

BLDC motor compatible with planetary gearbox

BLDC Motors

Suitable for compact variable-speed drive and automation applications where applicable.

Brushed DC motor compatible with planetary gearbox

Brushed DC Motors

A practical solution for compact machinery and general speed-reduction applications.

Compatible Servo Motor Brands

The PF Series can be matched with a wide range of mainstream servo motor brands using suitable adapter flanges. Please share the motor brand, model, flange dimensions and shaft specifications for matching confirmation.

Panasonic

Yaskawa

Mitsubishi Electric

Omron

Fuji Electric

SANYO DENKI

KEYENCE

Toshiba

Tamagawa Seiki

NIKKI DENSO

SANMEI

Miki Pulley

Shinko Electric

NIDEC SANKYO

Delta

LUST

Bosch Rexroth

Hitachi Industrial Equipment Systems

Typical Applications of the PF Series

The PF Series spur planetary gearbox is designed for cost-effective servo-driven applications requiring compact installation, reliable torque transmission and practical positioning performance.

Packaging & Labeling Equipment

Reliable and economical transmission for packaging, labeling and automated production machinery.

Conveyors & Material Handling

Compact planetary design supports conveyors, handling equipment and general industrial drive systems.

CNC Auxiliary Axes

Suitable for auxiliary positioning, indexing and feed mechanisms requiring practical positioning accuracy and cost-effective transmission.

Automated Production Lines

A practical transmission solution for industrial automation and repetitive production equipment.

Gantry & Linear Motion Systems

Stable torque transmission for linear axes, gantry mechanisms and rack-and-pinion applications.

General Servo Motion Systems

Cost-effective servo gearbox solution for positioning, speed reduction and general motion-control applications.

Frequently Asked Questions

The PF Series spur planetary gearbox uses a simple and reliable spur gear design, providing stable torque transmission and a more cost-effective solution for industrial automation applications that do not require ultra-low backlash.

The PF Series supports 1-stage and 2-stage configurations with reduction ratios from 3:1 to 100:1. Available ratios vary by model and reduction stage, and some ratios can be supplied in more than one stage configuration.

The PF Series offers a more economical spur gear solution with reliable transmission and practical positioning performance. Helical planetary gearboxes are generally better suited to applications requiring lower backlash, smoother operation and higher precision.

The PF Series can be matched with servo motors, stepper motors, BLDC motors and brushed DC motors using suitable adapter flanges. Motor matching depends on the motor model, flange dimensions and shaft specifications.

Need Help Choosing the Right PF Series Gearbox?

Share your motor model, required gear ratio, output torque or flange drawing. Our engineering team will help you configure the right PF Series gearbox and motor interface, usually within 1 business day.

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