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PMHG Series Harmonic Drive Hat Type List

PMHG-I Series Unit Type(Hollow Shaft)Harmonic Gearing

PMHG-I Series Unit Type(Hollow Shaft)Harmonic Gearing

The flexspline features a hollow flanged design, with the wave generator cam incorporating a large-diameter hollow shaft bore at its center. Support bearings are integrated within the harmonic drive, and the fully sealed construction ensures easy installation. This makes it ideal for applications where wiring or piping needs to pass through the center of the harmonic drive.
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PMHG-II-E Series Simple Unit Type(Integral Cam)Harmonic Gearing

PMHG-II-E Series Simple Unit Type(Integral Cam)Harmonic Gearing

Hollow flanged standard design with a compact overall structure. The input shaft connects to the inner bore of the wave generator through an integral cam. Supports two configurations: fixed circular spline with flexspline as the output, or fixed flexspline with circular spline as the output. Integral cam design ensures zero-backlash transmission for improved accuracy and fast response. Bidirectional output design provides flexible installation options.Torque capacity increased by 30% compared with the PMHS series .Service life increased by 43% compared with the PMHS series
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PMHG-III Series Simple Unit Type (Hollow Shaft) Harmonic Gearing

PMHG-III Series Simple Unit Type (Hollow Shaft) Harmonic Gearing

The flexspline features a hollow flanged design, with a large-diameter hollow shaft wave generator that incorporates a crossed roller bearing, allowing it to withstand both radial and axial loads. The overall structure is compact and simple, making it easy to customize and install. Hollow design facilitates integrated routing of wiring or pneumatic lines, optimizing space utilization.Built-in crossed roller bearing features high impact resistance The flexspline features a hollow flanged design, with a large-diameter hollow shaft wave generator that incorporates a crossed roller bearing, allowing it to withstand both radial and axial loads. The overall structure is compact and simple, making it easy to customize and install.and long service life.
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PMHG-IV Unit (Shaft Input) Series Harmonic Gearing

PMHG-IV Unit (Shaft Input) Series Harmonic Gearing

The flexspline features a hollow flanged design, with the wave generator integrating the input shaft and support bearings. Fully sealed construction is ideal for applications where a bevel gear or synchronous belt is installed at the input end.Torque capacity increased by 30% compared with the PMHS series .Service life increased by 43% compared with the PMHS series.
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Guide Of PMHG Series Harmonic Drive Hat Type

In Order To Give Full Play To The Performance Of Harmonic Reducer, Please Pay Attention To The Follo

  • Make the input shaft, circular spline, output shaft, and shell concentric.

  • Wave generators from harmonic drive distributors can produce axial force. Please make the input shaft into some structure that can support the force.

  • Since the harmonic reducer is a small device that can transmit larger torque, please adopt suitable tightening torque to tighten the screw that connects the flex spline with the output shaft.

  • Flexspilne can have elastic deformation, so please adopt the recommended size to design the inner wall of the shell.

  • Input shaft and output shaft must adopt matched bearings (leave space for 2 - point support) and the structure that can bear radial load and axial load. Please do not exert too much force on the wave generator and flex spline.

  • Make sure the flange diameter of the flex spline does not exceed the wheel bore diameter of the flex spline and process fillet on the flange that connects the diaphragm. Please adopt the recommended size to design all parts.

  • Use a C-shape clamp ring to fix the hub of the wave generator and make sure the hook of the clamp ring does not touch the flex spline or wave generator.

Guide Of PMHG Series Harmonic Drive Hat Type


How Do You Calculate The Gear Ratio On A Harmonic Drive?


Calculating the gear ratio on a Harmonic Drive involves understanding the structure and components of the drive. The gear ratio is determined by the number of teeth on the circular spline, flexspline, and wave generator. To calculate it, divide the number of teeth on the circular spline by the number of teeth on the flexspline. This ratio represents the speed reduction or multiplication achieved by the Harmonic Drive. It's important to note that the gear ratio can be further influenced by the specific design and configuration of the Harmonic Drive.




What Is The Transmission Ratio Of Harmonic Drive?


The transmission ratio of a Harmonic Drive, also known as the gear ratio or reduction ratio, is determined by the number of teeth on the circular spline, flexspline, and wave generator. The gear ratio represents the speed reduction or multiplication achieved by the Harmonic Drive. In a typical Harmonic Drive, the gear ratio can range from 30:1 to 320:1, or even higher in specialized versions. This means that for every rotation of the input shaft, the output shaft rotates a certain number of times determined by the gear ratio. The specific gear ratio of a Harmonic Drive depends on the configuration and specifications of the particular model, we have model for harmonic gear reducer, check for more information with this link.


Contact Us
Contact PICEA Motion for Different Types of Harmonic Drive
Building B1, PICEA Group Industrial Park, No.1 Yuyuan West Road, Yutang Street, Guangming District, 518132, Shenzhen, China.
lihy401353@piceamotion.com +8615603061887