CRBH Crossed Roller Bearings: Compact Design, Ultimate Precision
CRBH crossed roller bearings feature a thin-section design with integrated rings, offering excellent installation simplicity and rotational accuracy. Compared to other crossed roller types like RB or RA series, the CRBH series is especially suited for high-end applications with limited space and high positioning accuracy, such as precision rotary tables and robotic joints.
Distinctive Features and Design of CRBH Bearings
The CRBH Crossed Roller Bearings stand out due to their unique structural design. Unlike traditional thin section bearings or other crossed roller bearings, the CRBH series features an integrated inner and outer ring. This integrated structure provides a level of stiffness and rigidity that is difficult to achieve with separable designs. The single-piece construction also simplifies installation, as there is no need to precisely align separate rings.
The V-shaped arrangement of the cylindrical rollers allows the bearing to handle complex loads, including simultaneous radial and axial forces, as well as overturning moments. This makes them highly effective in applications like aerospace bearings and specialized rotary table bearings where high rigidity and accuracy are non-negotiable. This design also contributes to a compact profile, making them perfect for designs with space constraints.
Applications of CRBH Crossed Roller Bearings
The versatility and high precision of CRBH Crossed Roller Bearings make them suitable for a wide range of demanding applications. Their ability to handle combined loads with exceptional rigidity is crucial in precision machinery. A primary application is in rotary table bearings for machining centers and index heads, where precise rotation and heavy load support are essential. They are also widely used as robot bearings in the joints and arms of industrial robots, providing the necessary stiffness and accuracy for precise movements.
Other notable crossed roller bearing applications include medical scanning equipment, precision measuring instruments, and specialized automation systems. The compact and rigid nature of the CRBH bearings makes them a top choice for these critical, space-sensitive designs.
Comparison with Other Bearing Types
Compared to other bearing types like thin section bearings, CRBH Crossed Roller Bearings offer significantly higher rigidity and a greater capacity for combined loads. While thin section bearings are excellent for space-saving designs, they typically have lower load capacities and less rigidity than their crossed roller counterparts.
The CRBH series is a high-rigidity type, distinguished by its one-piece inner and outer rings. This integrated design provides a unified ring raceway. A filling hole in the outer ring simplifies assembly, while the high-quality raceway and spacers ensure smooth and accurate rotation. This one-piece construction contributes to the high rigidity and good rotational accuracy.
FREQUENTLY ASKED QUESTIONS
What is the main difference between CRBH and other crossed roller bearings?
The key distinction of CRBH Crossed Roller Bearings is their integrated inner and outer ring structure. Unlike separable designs, where the rings are separate, the CRBH series has a one-piece construction. This single-piece design provides a much higher level of rigidity and simplifies the mounting process. Other crossed roller bearings might have a more complex assembly, but the integrated design of the CRBH series ensures a compact, rigid, and easy-to-install solution, making it ideal for high-precision bearings applications where stiffness and accuracy are paramount.
Can CRBH bearings handle heavy loads?
Yes, CRBH Crossed Roller Bearings are specifically designed to handle heavy loads, including simultaneous radial, axial, and moment loads. The crossed arrangement of the cylindrical rollers allows the bearing to distribute forces over a large contact area, providing excellent load-carrying capacity and high stiffness. This makes them a reliable choice for demanding applications such as rotary table bearings and industrial robot bearings, where both high loads and precise movement are required.
How often should CRBH bearings be maintained?
Thanks to their sealed structure and precision manufacturing, CRBH bearings require minimal maintenance under normal conditions. However, regular lubrication checks are recommended depending on the environment.
Does TFL provide custom-sized CRBH bearings?
Yes, TFL can offer custom sizes and performance-enhanced designs based on customer specifications or drawings.