What is a cross roller bearing

Cross roller bearings and their rollers intersect at intervals between the inner and outer wheels, arranged at right angles to each other in different designs. They can simultaneously withstand loads from all directions (such as axial, thrust, or momentum loads). Due to the current contact between the roller and the surface of the track structure, the possibility of elastic material deformation caused by the load on the shaft is very small. In cross roller bearings, due to the need for cylindrical rollers to be arranged perpendicular to each other through time intervals on a 90 ° V-shaped groove rolling surface, one cross roller bearing enterprise can directly withstand the maximum radial motion load, axial pressure load, and torque control load in all development directions.

Minimize the size of the inner and outer rings of cross roller bearings. The ultra-thin cross roller bearing has a small volume and good rigidity, making it most suitable for joints or rotating parts of industrial robots, rotating workbenches of machining centers, rotating parts of robotic arms, precision rotating workbenches, medical devices, instruments, IC manufacturing devices, etc.

The clearance of cross roller bearings refers to the amount of movement of the inner or outer ring when the bearing is not installed on the shaft or bearing box, and then facilitates the radial or axial movement of the unfixed side. According to the direction of movement, it can be divided into radial clearance and axial clearance.

Features of Cross roller bearings

Cross roller bearings, due to the market segmentation of the inner or outer rings, are fixed and combined with the cross roller collar after installing rollers and spacer retainers to prevent separation from each other. Therefore, the operation method for installing a cross roller collar is simple. Due to the cross analysis arrangement of the rollers, we can directly withstand the loads of various social development directions with only one set of cross roller collars. Compared with traditional product model technology, rigid management is improved by 3-4 times. At the same time, NTN imported Chinese bearing fork roller bearings have a two segmented structure due to the cross roller bearing inner or outer ring, and the working clearance of the bearings can be adjusted. Even if preloaded, high-precision rotating mechanical movement can be achieved.

Cross roller bearings are machine tool attachments with a rotatable table surface for clamping workpieces and achieving rotation and indexing positioning, abbreviated as turntables or fourth axes. Turntables can be divided into two categories based on their functions: universal turntables and precision turntables. The number of cycles of stress or strain required for material fatigue failure in cross roller bearings under cyclic loading. For actual components, it is often measured in working hours. The fatigue life of components before the occurrence of engineering cracks (macroscopic visible or detectable cracks, with a length of approximately 0.2-1.0mm) is called the crack formation life. The fatigue life from engineering crack propagation to complete fracture is called crack propagation life. The total lifespan is the sum of the two. The number of stress cycles experienced by a material before fatigue failure is called fatigue life. For actual components, it is often measured in working hours. The number of stress or strain cycles necessary to cause material damage under a given repeated load. Usually divided into crack formation life and crack propagation life. It is widely believed that the range of stress variation is the main factor affecting fatigue life, with the former being larger and the latter being shorter, and vice versa. The clearance of cross roller bearings refers to the amount of movement of the inner or outer ring when the bearing is not installed on the shaft or bearing box, and then facilitates the radial or axial movement of the unfixed side. According to the direction of movement, it can be divided into radial clearance and axial clearance.

Applications of Cross roller bearings

Cross roller bearings are widely used in situations such as industrial robots, working machinery, and medical facilities that require high rigidity, tightness, and precision at high speeds.

Supplier of cross cylindrical roller Slewing Bearing

LTZC Bearing is a professional slewing bearing manufacture with following main Products. Slewing Bearing, Large Size Non-standard Precision Bearing, Ladle Turret Slewing Bearing Shield machine bearing series, Rolling Mill Bearing.

The main products of LTZC BEARING are slewing bearing, non-standard precision bearing, rolling mill bearing, unit assembly related to bearing, Oversize Precision Rail. The product processing range is outer diameter: 200 mm - middle 10000 mm.

LTZC REARING was founded in 1992. It is a national high-tech enterprise specializing in the manufacture of large and oversize bearings and slewing bearing/slewing ring.National Science an technology small and Medium-sized Enterprises, and established the High load Bearing Engineering Research Center of Luoyang.

The main products of LTZC BEARING are slewing bearing, non-standard precision bearing, rolling mill bearing, unit assembly related to bearing, Oversize Precision Rail. The product processing range is outer diameter: 200 mm - middle 10000 mm.