Cross roller slewing bearing also known as cross roller slewing ring bearing, is mainly divided into 11 series, HJ series and 797 series slewing bearings. Compared with other slewing bearings, cross roller slewing bearing has small size, high precision grade, high rigidity and large load bearing capacity. Resistance to damage and other characteristics. It is often used in large-scale rotary devices such as bucket turbines, overweight transportation machinery, port machinery, mining machinery, park amusement machines, filling machines, construction machinery and missile launchers, which plays an important role in the rotary rotation of construction machinery products.
1. Cross roller slewing bearing model
Cross Roller Slewing Bearing 11 Seri00es
Cross Roller Slewing Bearing HJ Series
Cross roller slewing bearing 797 internal gear series
Cross roller slewing bearing 797 external gear series
Cross roller slewing bearing 797 non-gear series
Different cross roller slewing bearings are available in various types to meet different mechanical requirements. Hengguan bearing manufacturers can design according to customer’s specific requirements, manufacture and install according to actual conditions, focusing on customer needs.
2.The characteristics of the cross roller slewing bearing
The cross roller slewing bearing can be assembled in all directions of the main shaft, which is very convenient to use and can bear radial and axial loads at the same time, which simplifies the structure of the machine and reduces the weight of the mechanism. Cross roller slewing bearings have low grease consumption due to their high rotation efficiency and low heat dissipation. Moreover, it can achieve negative clearance, has extremely high rotation precision and high rigidity, and is 3-4 times stronger than conventional bearings. The bearing capacity of the crossed roller slewing bearing is also high, and the roller and the raceway are in line contact, withstand higher loads.
3.The installation of the cross roller slewing bearing
For cross roller slewing bearing, firstly, the roller and spacer block must be correctly placed, then install the screws or bolts, and then adjust the no-load slewing resistance torque after the installation. The next step is to correctly place the inner circumference and the outer periphery. Place it on the workbench, place it in the lower half of the inner circumference and try to make the outer raceway correspond to the inner circumference channel. Fill the gap with the spacer block. The number of rollers and spacers is generally equal, and the rollers and spacers should be close to each other. If there is a gap between the rollers and the spacers, the thickness of one or two spacers can be adjusted to compensate for the gaps. The grease gently and evenly on the raceway. The installation process is an important process. Try to ask a professional to install it to avoid problems with the bearings.
The above is the analysis of the model and characteristics of the cross roller slewing bearing. The cross roller slewing bearing has higher adaptability, higher precision grade, high rigidity, large load bearing capacity and strong resistance to damage than ordinary bearings. Therefore, the direction of use is also for large-scale mechanical equipment, such as overweight transportation machinery, port machinery, mining machinery, park amusement machines, filling machines, construction machinery and missile launchers.