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In the manufacturing process of cross cylindrical roller bearings, the axial clearance of the bearings after assembly sometimes meets the design requirements, while the rotational flexibility is poor or even stuck.Therefore, the reasons affecting the activity of cross roller bearing rotatory recording are analyzed as follows. I. structure analysis of cross cylindrical roller bearing The […]
Crossed roller bearings internal structure of the roller is 90 ° perpendicular cross array (which is also crossed roller bearings the name of the origin), with intervals between roller holder or isolation, to prevent mutual friction between roller tilt or roller, effectively prevent the rotation torque increases.In addition, there will be no roller side contact or locking phenomenon;At the same time, because the internal and external rings of the standard type crossed roller bearings are divided, the clearance can be adjusted, even if the prepressure is applied, the rotation motion can be obtained with high accuracy.
Crossed roller bearings in addition to the above performance, there are the following advantages, with JCB bearings together to understand it.
1. Operation and installation simplified standard type crossed roller bearings is divided into two parts of the outer ring or the inner ring, after loading the roller and the retainer, is fixed together, the installation can be fine tuning connection bolts and fixed flange to achieve the ideal load state, so the installation of the operation is very simple.
2, bear a large axial and radial load because of the roller in the 90 ° V groove rolling surface by interval retainer is perpendicular arrangement, this design makes crossed roller bearings can bear larger radial load, axial load and torque load, etc. All the direction of the load.
3, save installation space sharply cross roller bearing inner and outer ring size is minimal miniaturization, especially ultra-thin structure is close to the limit of small size, and high rigidity, so the most suitable for the joints of the industrial robot parts or rotating parts, machinery processing center of the rotary worktable, manipulator rotary department, precision rotary worktable, medical instruments, measuring instruments, such as IC manufacturing equipment widely used.
4. There are many types and structures derived, which are suitable for various applications. On the basis of the basic type of cross roller bearing, many cross roller bearings with different structures are derived, so as to facilitate the use of different requirements.From the main categories, can be divided into: basic type of cross roller bearing, high rigidity cross roller bearing, ultra-thin cross roller bearing;From the external structure, there are internal ring segmentation, external ring segmentation, internal and external ring shape;From the internal structure, and can be divided into full load roller type, metal window cage type, nylon or metal block type isolation;Distinguish according to joining way, have bolt to join type again, rivet joins type and spring disc type to wait a moment, sorts are various
HIWIN crossed roller bearings is mainly composed of outer ring, inner ring and multiple spacing rollers. The roller is located between the inner ring and outer ring, and there is a spacing block between the roller and the roller to prevent the roller from rubbing against each other and increasing the rotary torque.In addition, the roller and the surface of the rolling raceway are in linear contact, so when the bearing receives the load, there can be a large bearing load area, resulting in a small amount of elastic deformation, and the long service life of the bearing.Each roller of Taiwan cross roller bearing is staggered at an Angle of 90 degrees, which can bear axial load, radial load and torque load in different directions at the same time.
HIWIN crossed roller bearings currently has six types: outer ring split CRBA, inner ring split, high rigidity type, outer ring split with mounting hole, high rigidity type with mounting hole and customized type.Outer ring of segmentation model is suitable for the inner ring spinning, and the inner ring segmentation model is suitable for outer ring spinning, high rigid type is suitable for outer ring and inner ring spinning at the same time, with the pass of the flange installation is easy to use, and customized type changes due to the dimensions can meet the needs of the customers, make customers more creative and practical.All types of HIWIN crossed roller bearings in Taiwan have the characteristics of high rigidity and high rotation accuracy, which can be widely used in industrial automation control, tool machine, inspection and medical and other high-precision rotating parts of equipment.
HIWIN crossed roller bearings product features:
* high load carrying capacity design
* high rigidity
* the size and rotation accuracy are higher than international standards
* bear the load in any direction at the same time
* good rotation smoothness
* small volume living space is easy to be small and compact design
* easy to install and adjust
* various bearing types and sizes are available for optimal selection
* you can provide customized designs
Crossed cylindrical roller bearing can be widely used in machine tool precision rotary indexing table, vertical and horizontal boring machine, vertical grinding machine, rotary surface grinding machine, large gear hobbing machine, guns and rotary table, large radio and optical telescopes, rotating camera, steering pivot and continuous casting machine, highly restricted pivot microscope platform, pole center axis, bogie, welding stents, turning assembly fixture, industrial robots, precision rotary worktable, medical apparatus and instruments, measuring instruments, IC manufacturing equipment and so on.
1. Excellent rotation accuracy
Crossed roller bearings
The internal structure of crossed roller bearings by roller are arranged 90 ° vertically cross each other, with intervals between roller device or isolation, can prevent roller friction between roller tilt goods, effectively prevent the rotation torque increases.In addition, there will be no roller side contact or locking phenomenon;
Non-standard cross roller bearings can also achieve high precision rotational motion even when preloaded because the inner and outer rings are segmented and the clearance can be adjusted.
2. Easy operation and installation
The outer ring or inner ring, which is divided into two parts, is fixed together after the rollers and retainers are loaded, so the installation operation is very simple.
3. Bear large axial and radial loads
Because of the roller in the 90 ° V groove rolling surface by interval retainer is perpendicular arrangement, this design makes crossed roller bearings can bear larger radial load, axial load and torque load, etc. All the direction of the load.
4. Greatly save installation space
Crossed roller bearings inner and outer ring size is minimal miniaturization, especially ultra-thin structure is close to the limit of small size, and high rigidity, so the most suitable for the joints of the industrial robot parts or rotating parts, machinery processing center of the rotary worktable, mechanical rotary department, precision rotary worktable, medical instruments, measuring instruments, such as IC manufacturing equipment widely used.