RE25040UUCC0P5/P4/P2 Precision Cross Roller Bearing (250X355X40mm) Robotic bearings RE25040 Hig fJ

Crossed roller bearings
Crossed roller bearings
     Cylindrical rollers of crossed roller bearings are arranged at 90 ° intervals on the raceway. The rollers are equipped with spacers or spacers to prevent friction between the rollers caused by the inclination of the rollers. Lock-up occurs; Crossed roller bearings can withstand loads from all directions (such as axial, radial, or overturning loads) at the same time. The roller is in line contact with the raceway surface, so the bearing is less likely to deform elastically under load.
Structure of crossed cylindrical bearings
     The structure of the crossed cylindrical roller bearing is divided into three types of outer ring split type, inner ring split type and inner and outer ring integrated type. The rolling elements are short cylindrical rollers arranged at 90 ° to each other in a V-shaped raceway. The rollers are separated by a spacer. This structural design allows a single bearing to withstand axial loads, radial loads, and overturning moments. At the same time, bearings have high rigidity, high rotation accuracy and high bearing capacity, so they are suitable for rotary joints of industrial robots, rotary tables of machining centers, precision rotary tables, medical machines, measuring instruments, etc.
Because the rollers are arranged in a cross, only one set of crossed roller collars can bear the load in all directions. Compared with the traditional model, the rigidity is increased by 3 to 4 times. Due to its special structure, it is usually used as an articulated bearing in industrial robots.
RE series crossed roller bearings
RE Crossed Roller Bearing
RE series crossed roller bearings, the outer ring is integrated and the inner ring is divided into two pieces, it is most suitable for the occasion where the inner ring has high rotation accuracy.This type of bearing is widely used in industrial robots, work machinery and medical facilities, etc., where high rigidity, tightness and high speed can still ensure accuracy.
RE Crossed Roller Bearing Features:
1. Excellent rotation accuracy. The RE series crossed roller bearings produced by Luoyang Yadian Machinery Equipment Co.,Ltd can provide negative clearance types, accuracy grades P5 / P4 / P2.
2. RE series cross roller bearings are specially suitable for the applications where space is limited, while high rigidity and high rotation accuracy are required. Such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines.
3. Withstand large axial and radial loads. Because the rollers are arranged perpendicular to each other on the raceway through the spacer, they are in line contact with the raceway, not point contact with the ball turntable bearing.
4, greatly save installation space.
5. Reduce the shaft length and processing cost. The thermal expansion causes limited changes in