The Bonsystems BSR series is a core in-house lineup developed around the concept of a slim cycloidal reducer, offered as a form that combines a Pinless cycloidal structure with a slim package. This article works step by step through the definition and background of the BSR series, its core design characteristics, its main application areas, its application value in humanoid and collaborative robot joints, and its place within the Bonsystems lineup.
Table of Contents
The Definition and Background of the BSR Series
Key Summary The BSR series is a core in-house lineup that Bonsystems has developed in the cycloidal reducer category around the concept of a slim package and a Pinless structure.
The Bonsystems BSR series is the company’s core cycloidal reducer lineup, a product family developed around the core concepts of a slim package and a cycloidal structure. The name BSR refers to the Bonsystems Speed Reducer line.
The BSR series is a product developed by combining the intrinsic strengths of a cycloidal reducer with the company’s design philosophy. The in-house strengths that Bonsystems has pursued, minimized part count, slim thickness, and durability, are combined within a single component.
Behind the development of the BSR series, the industrial trends of localizing accurate-motion reducers and the rise of the humanoid and collaborative robot markets have acted together.

Core Design Characteristics of the Bonsystems BSR Series
Key Summary The core of the BSR series is that it realizes a thin yet strong reducer using cycloidal tooth profiles.
The core design characteristic of the BSR series is that the company’s core technologies are combined within a single component. The slim package realizes a thin profile. In the case of the 070 and 080 series, a Pinless cycloidal structure removes the pin parts inside the case, and the part-count reduction design philosophy simplifies the assembly, inspection, and management variables.
These design characteristics define the BSR series not as a component summarized in a single line of specification, but as a component that combines part simplification, a slim package, and long-term reliability. Catalog information by model can be found on the Bonsystems official website.
Main Applications: Industrial Automation, Humanoid and Collaborative Robot Joints
Key Summary The BSR series was developed with robot product applications, as well as industrial automation equipment, as its core application areas.
The use of the Bonsystems BSR series is not limited to humanoid and collaborative robot joints. It is a component category that can be widely reviewed in applications requiring rotational motion and long-term operational reliability, such as high-accuracy automation equipment, inspection and logistics automation, and service robots.
These applications require motion accuracy, profile thickness, response to external loads, and mass-production stability all together. The BSR series responds to these combined conditions as a form that combines a slim package with part-count reduction design, and its applicability to each application environment can be reviewed through consultation with Bonsystems.
The Bonsystems BSR Series
Key Summary The BSR series represents the cycloidal reducer category within the Bonsystems lineup and, together with the BCSA actuator, makes up the company’s component portfolio.
The Bonsystems component portfolio consists of the BSR series cycloidal reducers and the BCSA series actuators. If the BSR represents the cycloidal reducer category, the BCSA takes charge of the actuator category that integrates the motor, the reducer, and, as needed, control elements.
This lineup configuration means that the company offers not a single component-level choice, but a component option at the level of system integration. Depending on the application environment, the BSR cycloidal reducer can be used on its own, or it can be used as an integrated component in the form of a BCSA actuator.
The BSR series can be said to be the lineup that most clearly shows the design philosophy and technical position of Bonsystems.
FAQ
Q: What kind of component is the Bonsystems BSR series?
A: The BSR series is Bonsystems’ core cycloidal reducer lineup, the product that forms the basis of the cycloidal technology delivering high torque from a slim profile.
Q: Where is the BSR series mainly used?
A: It is used in a wide range of applications that require accurate power transmission and long-term reliability, such as automation equipment, inspection, logistics, and service robots.
Q: Where can I find the specifications for each BSR model?
A: The specifications and application catalog information for each BSR model can be found on the Bonsystems official website, and application consultation by environment can be carried out together.
Q: What is the relationship between the Bonsystems BSR series and the BCSA series?
A: If the BSR represents the cycloidal reducer category, the BCSA corresponds to the actuator category that integrates the motor and reducer and, in some cases, control elements.
Q: What is the biggest differentiator of the Bonsystems Speed Reducer?
A: It is a product that applies all of the company’s cycloidal technology differentiators: a slim package, a cycloidal structure, minimized part count, durability, and a wide range of reduction ratios.
