Special bearing for robot reducer
- 2022/9/8 9:12:00
Special Bearing for Robot Reducer
The robot reducer has the characteristics of high precision, high rigidity, high load, high speed ratio, high life, low inertia, low vibration, low noise, low temperature rise, compact structure and simple installation. One is a harmonic reducer and the other is an Rv reducer.
Bearings, as one of the core components in the reducer, are also divided into the following categories according to the reducer, namely, crossed roller bearings for harmonic reducers, flexible bearings for harmonic reducers, and angular contact ball bearings for Rv reducers. Crossed roller bearings for harmonic reducers include four series, CSG (CSF) series, CSD series, SHG (SHF) series, SHD series, the naming method adopts the name of the reducer; the flexible bearing for harmonic reducer is named HYR .RV reducer main bearing is named Rv.
CSG (CSF) type
The outer ring is divided into two pieces, and the inner ring is an integral structure. No flange and bearing seat are required for installation. It is mainly used in the output part of the CSG (CSF) series reducer.
CSD type
The outer ring and the inner ring are of integral structure, and the outer diameter is the same as that of the CSG type, which has higher rigidity than the CSG type bearing. It is mainly used in the output part of the CSD series reducer.
SHG (SHF) type
The outer ring and inner ring are integral structures, which have little effect on performance during installation, and can obtain stable rotation accuracy and torque. They are mainly used in the output parts of various reducers of SHG and SHF series.
SHD type
The outer ring and the inner ring are integral structures, and the height is lower than that of the SHG, which saves the installation space of the reducer, and is mainly used in the output part of the SHD reducer. (If you need related technical information of SHD series bearings, please contact our staff)
Flexible Bearings for Harmonic Reducers
The flexible bearing mainly bears alternating bending stress and torque stress. Due to its relatively thin wall thickness, it is more likely to deform to a certain extent when it is matched with the cam. The inner and outer rings and rolling elements of the bearing are made of high-carbon chromium bearing steel, and the retainer is made of nylon as a whole. type retainer.
Angular contact ball bearing for Rv reducer
RV reducer bearings are mostly non-standard sizes, consisting of an outer ring, an inner ring, an integral retainer and a set of precision steel balls, with a contact angle of 40°; the bearing can bear radial load and axial direction in one direction at the same time. It can also bear pure axial load in a single direction. This type of bearing is often used in pairs in a back-to-back configuration: the bearing section is small, which saves the installation space of the host; the retainer is made of engineering plastics with glass fiber, which greatly reduces the The weight of the entire bearing increases the strength of the material and the working temperature (the retainer is resistant to temperature of 120°). Mainly used in the main support part of the RV reducer.
