Harmonic Drive LLC announces new ratios for CSD and SHD

The ultra-flat, zero backlash CSD precision component sets are available with standard hollow bore or an oversized (BB) hollow shaft. CSD and SHD zero-backlash gear units are housed gears available in versatile designs such as hollow shaft and lightweight.

Peabody, MA -Harmonic Drive LLC, a leader in high precision motion control announces the addition of 80:1 and 120:1 reduction ratios for CSD and SHD zero-backlash gears. The addition of these new ratios enhance the already successful product lines.


The ultra-flat, zero backlash CSD precision component sets are available with standard hollow bore or an oversized (BB) hollow shaft. CSD and SHD zero-backlash gear units are housed gears available in versatile designs such as hollow shaft and lightweight. Select the size, configuration and ratio that is right for you.

Three Product Types:

Ultra-flat component set (CSD-2A)
Housed gear units (CSD-2UH/UF, SHD-2UH-LW)
Simplicity gear units (SHD-2SH)
Component Sets

Harmonic Drive® precision component sets are the core motion control mechanisms. These zero backlash products offer the widest design flexibility. Products can be selected which offer the optimum dimension and performance based on the available volume within the customer-designed housing. High Torque, Ultra Flat, and Hollow Shaft Options are available. These high accuracy gearing components are often used as the core building block for custom high performance servo actuators and motion control mechanisms. Customer-supplied servo motors can be easily integrated into the design

Gear Units

Gear units are housed zero backlash Harmonic Drive® component gears combined with a precision cross roller output bearing & flange. Gear Units are very compact, robust and easy to use gearhead/gearbox solution. Our Simplicity Gear Units are Non-housed component gearing combined with a precision cross roller output bearing. Simplicity Gear Units do not include the housing and output flange, which allows for even tighter integration into the customer's housing or machine structure

Simplicity Gear Units

Our Simplicity Gear Units are Non-housed component gears combined with a precision cross roller output bearing. Simplicity Gear Units do not include the housing and output flange, which allows for even tighter integration into the customer's housing or machine structure. Axially compact, they feature a large hollow input shaft and a robust cross roller bearing so loads can be mounted directly to the unit without the need for additional support bearings.

With the addition of the 80-:1 and 120:1 ratios for these product lines, it is even easier than ever to find the exact speed reducer to optimize your project.

About Harmonic Drive LLC

Harmonic Drive, LLC engineers and manufactures precision servo actuators, gearheads and gear component sets. We work closely with both Fortune 500 and companies of all sizes to understand their application requirements and provide a standard or custom-engineered solution to enable the success of their design project. The majority of the products sold by Harmonic Drive, LLC are proudly made at our manufacturing facility in Peabody, Massachusetts. Harmonic Drive Group Companies in, Japan (Harmonic Drive Systems, Inc.) and Germany (Harmonic Drive AG) provide additional products. We have shared core values, product designs and quality standards. State of the art manufacturing facilities in the US, Japan and Germany enables us to locally serve the needs of our global customers.

With over 50 years of experience, our expert engineering and production teams develop enabling technologies and products to meet the needs of an evolving motion control market. We are very proud of our outstanding company history. Our high-precision, zero-backlash Harmonic Drive® gears and Harmonic Planetary® gears have, and continue to play critical roles in robotics, spaceflight applications, semiconductor manufacturing equipment, factory automation equipment, medical diagnostics and surgical robotics. More information can be found by visiting the company's website at www.harmonicdrive.net

Harmonic Drive is a registered trademark of Harmonic Drive Systems.

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