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Crossed Roller BearingsExcellent Impact Resistance
- Aug 25, 2017 -

The crossed roller bearing, when the inner ring or outer ring is divided, is fixed to the crossed roller collar after being fitted with the roller and the spacer holder to prevent separation from each other. Therefore, when the cross roller shaft is mounted simple. As the rollers are arranged in cross, so only a set of cross-roller ring can withstand the load in all directions, compared with the traditional models, increased rigidity 3 to 4 times. At the same time, because the crossed roller bearing inner ring or outer ring is a two-split structure, bearing clearance can be adjusted, even if the preload is applied, can also get high-precision rotary motion.

1, with excellent rotation accuracy

The internal structure of the cross roller bearing is 90 ° with each other in the vertical arrangement, the roller between the interval with a spacer or isolation block, can prevent the roller tilt between the roller grinding each other. In addition, since the contact phenomenon or the locking phenomenon of the roller does not occur, and the inner and outer rings are divided structures, the gap can be adjusted, and even if the preload is applied, a high-precision rotational motion can be obtained.

2, operation and installation simplification

The outer ring or the inner ring, which is divided into two parts, is fixed together after the rollers and the retainers are loaded, so that the operation is very simple during installation.

3, to withstand greater axial and radial load

Since the rollers are vertically aligned with each other through the spacing retainers on the 90 ° V-groove rolling surfaces.

4, substantial savings in installation space

The size of the inner and outer rings of the cross roller bearing is minimally miniaturized, especially the ultra-thin structure is close to the limit of the small size, and has high rigidity, so the most suitable for industrial robot joints or rotation parts, machining center rotation Workstations, manipulator rotary parts, precision rotary table, medical equipment, measuring instruments, IC manufacturing devices and other widely used.

5. High speed capability

6. To reduce the shaft length and processing costs, thermal expansion leads to limited geometric changes

7. The use of nylon separator, low inertia, low starting torque, easy to control the angular division

8. Optimize the preload, stiffness, guide roller running high precision

9. Carburized steel provides excellent impact resistance and surface wear resistance

10. Simple but full of lubrication