WSBC bearing redefines Humanoid Robotics with Next-Gen Bearing Solutions

Time：2025.03.04  Source：Roller Bearings Suppliers

The joints of humanoid robots can achieve rotation and linear motion, which is inseparable from the key role of bearings. In humanoid robots, bearings are mainly distributed in the connection parts of the deceleration device and joints to provide support for the flexible movement of the robot. Wuxi Spark Bearing Co.,Ltd is roller bearing and precision bearing expert , we supply many bearings for humanoid robots application market . 

Reducer & bearing

The reducer is the core power transmission mechanism in humanoid robots, which can be likened to human joints. The precision reducer is an intermediate device connecting the power source and the actuator, and its role is to reduce the high speed of the servo motor, amplify the original torque of the servo motor through the gear reduction ratio, and provide high rigidity maintenance and high precision positioning. The humanoid robot reducer mainly has harmonic reducer, RV reducer, planetary reducer and other types, and different types of reducer have different requirements for bearings .

Four-point contact ball bearings, also known as angular contact ball bearings that can withstand two-way axial loads, belong to a kind of angular contact ball bearings, with lower barriers and smaller value. This bearing is a single row angular contact ball bearing with the inner and outer rings separated, and the inner ring is divided into two parts, which can withstand axial loads from both directions at the same time. The groove curvature radius of the outer ring is very small, so that the steel ball and the inner and outer ring are in uniform contact at four contact points, and the rolling body has four stress points, so it is called four-point contact ball bearing, which has a high carrying capacity.

Compared with ordinary angular contact ball bearings, four-point contact ball bearings have smaller axial clearance, and can even achieve negative clearance, and can withstand two-way axial loads. It is suitable for bearing both radial and axial loads, especially in the case of axial loads. If a single row angular contact ball bearing is used to achieve the same function, it is usually necessary to configure two identical bearings back-to-back or face to face. The four-point contact ball bearing design can effectively save space and provide a more concise layout scheme. WSBC QJ315N2MA bearings in stock ,pls click here : 

Deep groove ball bearings: This kind of bearings can mainly bear radial loads, but also can cope with radial and compound loads. They have a small coefficient of friction and are suitable for use in high-speed rotating environments. At present, there are many manufacturers with the ability to produce such bearings, making the cost and price relatively low. China ranks first in the world in the production of deep groove ball bearings, and its application in the industrial field is very extensive, and has achieved a high degree of localization .WSBC 6309-2RSR-C3 bearings in stock ,pls click here : 

China's humanoid robot bearing manufacturers are facing huge market opportunities and challenges: on the one hand, with the rapid development of the humanoid robot market, the demand for high-precision, long life and low noise bearing products is increasing; On the other hand, domestic bearing enterprises in technology research and development, production process, quality control and other aspects also need to continue to improve, in order to meet the market demand for high-quality bearing products. Therefore, domestic bearing enterprises need to strengthen technological innovation and market expansion, and constantly improve their competitiveness to occupy a favorable position in the fierce market competition .