In the realm of precision engineering and robotic applications, the significance of harmonic reducers cannot be overstated. Among the various components that contribute to the seamless operation of harmonic reducers, the bearing system plays a crucial role. This article delves into the intricacies of CSD type harmonic reducer bearings, shedding light on their design, functionality, and applications.

Understanding Harmonic Reducers:

Harmonic reducers are mechanical devices employed to achieve precise motion control and torque transmission in various industrial and robotic systems. They are characterized by their compact size, high torque density, and exceptional accuracy. The heart of a harmonic reducer lies in its bearing system, which facilitates smooth and efficient movement.

CSD Type Harmonic Reducer Bearing:

CSD type (outer ring integral, inner ring integral)
The outer ring and inner ring are of integral structure, with the same outer diameter as CSG type, which has higher rigidity than CSG type bearings, and is mainly used in the output part of CSD series speed reducer.

The CSD type harmonic reducer bearing is a specialized component designed to meet the specific requirements of harmonic drive systems. This type of bearing is integral to the Compact Series Drive (CSD) harmonic reducers, providing the necessary support for their unique motion control capabilities.

Key Features:

  1. Compact Design: CSD type bearings are engineered with a focus on minimizing size while maximizing load-bearing capacity. This compact design is essential for applications where space is limited, such as robotics and automation.

  2. High Torque Transmission: The bearing system in CSD type harmonic reducers is optimized for high torque transmission, ensuring efficient power delivery and precise motion control.

  3. Reduced Backlash: Backlash, or the clearance between gear teeth, can impact the accuracy of motion in harmonic drive systems. CSD type bearings are designed to minimize backlash, contributing to improved positioning accuracy.

  4. Precision Manufacturing: These bearings undergo precision manufacturing processes to meet stringent tolerances and performance requirements. This attention to detail ensures the reliability and longevity of the harmonic reducer system.


CSD type harmonic reducer bearings find applications across various industries, including:

  1. Robotics: In robotic arms and joints where precise motion control is essential.

  2. Aerospace: For applications requiring lightweight yet high-torque transmission.

  3. Medical Devices: In equipment where compact size and precision are critical.

  4. Industrial Automation: For efficient motion control in automated machinery.


The CSD type harmonic reducer bearing stands as a testament to the continual advancements in precision engineering. Its compact design, high torque transmission capabilities, and reduced backlash make it a key player in the world of harmonic drive systems. As technology evolves, these bearings are likely to play an increasingly vital role in shaping the future of robotic and industrial automation.

CSD type harmonic reducer bearing

CSD type harmonic reducer bearing Product Model

CSD Type Harmonic Reducer Bearing
LKPB Model NumberOverall dimensionsOuter ring mounting holesInner ring mounting holesBasic load ratingweights
Unit:mmSeal reverseSeal FrontSeal reverseKNKN

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LKPB With more than 10 years of production experience

Supporting OEM service; 50 days return service; 7*24 hours technical support; Accept non-standard customization; Maximum 24 months product warranty


Luoyang LIKE Precision Machinery Co., Ltd – LKPB®, Product precision can be P5, P4, P2 and VSP, Inside diameter size range φ20mm – φ2000mm. Maximum product quality warranty of 24 months, OEM acceptable.

LKPB With more than 10 years of production experience, The most professional suppliers of precision bearings in China. 

LKPB® strictly follows the ISO9001 quality system requirements for product quality control, relying on the professional technology of the bearing production base, the product quality is stable and cost-effective,

LKPB®, turning the world, carrying unlimited! We have served thousands of customers all over the world during the ten years of our establishment.

Our future goal is to become the most professional manufacturer of rotary table bearings and crossed roller bearings in China, and make LKPB® a world-class bearing brand.

This is our vision and direction!

LKPB® has accumulated rich production experience in the past 10 years,  supporting OEM service. Our products are exported to Germany, Italy, Korea, Japan, the United States, Belgium, Turkey and so on.

Top quality:

1. Precision Rotary Table Bearings ( YRT, YRTCYRTS, YRTMZKLDF Series) ;


3. Precision Thin Section Bearings ( KAA, KA, KB, KC, KD, KF, KG, JHA, JA, JB, JG, JU Series);  

4. Robot Harmonic Reducer Bearings (CSF/CSGSHF/SHG, Z Series and Flexible Bearings F, 3E Series); 

5. Angular Contact Ball Bearings ( 718, 719, 70, 72, 2344/2347 Series);  

6. Ball Screw Support Bearings (ZKLF(N), ZARF, ZARN Series);

7. Hollow Rotary Platform Bearings ( ZK Series).

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The main application areas of our products are precision rotary tables, machining center rotary tables, industrial robot joints and rotating, robotic rotating parts, CNC machine tools, automation industry, direct drive motors, precision instruments, radar, medical equipment and other industries.

Regular models are in stock, reasonable prices, ready for delivery, non-standard precision bearings according to the requirements of the drawings and the number of 1-3 weeks delivery time