What is a crossed roller bearing?
- 2020/5/25 14:51:24
The cross roller bearing is a kind of special type bearing with inner ring division and outer ring rotation. Because the inner ring or outer ring is divided, after the roller and spacer are loaded, it is fixed with the cross roller ring to prevent each other from separating, so it is easy to operate when installing the cross roller ring.
Structural features: the cross roller bearing is the cylindrical roller arranged vertically through the isolation block on the v-shaped groove rolling surface at 90 degrees, so the cross roller bearing can bear the radial load, axial load and torque load in multiple directions.The size of the inner and outer rings has been miniaturized, and the extremely thin form is close to the limit of the small size, and has high rigidity, and the accuracy can reach P4, P2.Therefore, it is suitable for the joint and rotating parts of industrial robots, the rotating table of machining center, the rotating part of manipulator, the precision rotating table, medical machines, calculators, IC manufacturing devices and other equipment.
RB type (outer ring division type, inner ring rotation type)
This series model is the basic type of the cross cylindrical roller bearing, the inner and outer rings are miniaturized to a minimum, the structure is the outer ring is divided, the inner ring is an integrated design, suitable for the requirements of the high precision of the inner ring rotation parts.
RU type(integrated inner/outer ring type with fixing holes)
As the mounting holes have been machined for this series, there is no need to fix the flange and support seat.In addition, due to the integrated inner and outer ring structure with seat, the installation has little impact on the performance, so the stable rotation accuracy and torque can be obtained.
Can be used for outer ring and inner ring rotation.
RE type(One-piece outer ring/two-piece inner ring)
This series model is a new type produced by the design concept of the RB model, the main size is the same as the RB model.Its structure is the inner ring is divided, the outer ring is an integrated design, suitable for the requirements of high precision outer ring rotation parts.
RA type(One-piece inner ring/two-piece outer ring/super slim)
This series model is the compact model which reduces the inner and outer ring thickness of RB model to the limit.Suitable for parts requiring light weight and compact design, such as robot and manipulator rotating parts.
SX type(Inner ring integrity, outer ring division, thin section)
Its structure is similar to the RB series. The outer ring is a two-part structure, connected by three fixed rings, and the inner ring is designed as a whole, which is suitable for the parts requiring high rotation accuracy of the inner ring.
CRBH type(One-piece inner ring&outer ring/super slim)
The inner and outer rings of this series are all of one structure, used for outer ring and inner ring rotation.