harmonic reducer bearing


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

Other types of harmonic reducer bearing

SHF(SHG) Harmonic Reducer Bearings
CSD cross roller bearings
SHD Harmonic reduction bearings
RV robot special bearing
Flexible Bearings
Flexible Bearings

About LKPB Bearing Company

LKPB Factory shooting

Luoyang LIKE Precision Machinery Co., Ltd – LKPB®, Located in Luoyang, China, Established in 2013 with a registered capital of 5 million, We are a professional bearing manufacturer.

LKPB strictly follows the ISO9001 quality system requirements for product quality control, we have a strong technical team to accept processing of non-standard precision bearings of P5, P4, P2 and VSP level of accuracy. The products inner diameter size range is φ20mm-φ2000mm.

We have established long term co-operation with a number of the world’s leading machine tool and robotics companies, the products can completely replace of INA/IKO/THK/FAG/SKF/KAYDON and other brands. We believe that cooperating with us will exceed your expectations.

  1. Rotary Table Bearings ( YRT, YRTC, YRTS, YRTM, ZKLDF Series) ;
  1. Thin Section Ball Bearings ( KAA, KA, KB, KC, KD, KF, KG, JHA, JA, JB, JG, JU Series);  
  1. Robot Reducer Bearings (CSF/CSG, SHF/SHG, CSD Series, RV Reducer Bearings and Flexible Bearings F, 3E Series);
  1. Angular Contact Ball Bearings ( 718, 719, 70, 72, 2344/2347 Series);  
  1. Ball Screw Support Bearings ( ZKLF/ZKLN, ZARF/ZARN Series);
  1. Slewing Ring ( Cross Roller, Four-Point Contact, Eight-Point Contact Same Path, Eight-Point Contact Different Path, Three-row roller and Flanged Series);
  1. Hollow Rotary Platform Bearings ( ZK Series).

For expert guidance in meeting your specific requirements, reach out to our knowledgeable team. Experience firsthand how our precision solutions can elevate your machinery’s efficiency and durability. Contact us today!

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