Field investigation, selection of high-quality suppliers, sampling and testing of their raw materials, and random sampling in follow-up cooperation, in order to ensure that raw materials meet national standards, mechanical properties meet product design requirements.
Structural characteristics, performance and scope of application
The single-row four-point contact spherical slewing bearing is composed of two seat rings. It has a compact structure, light weight, and four-point contact between steel ball and arc raceway. It can bear axial force, radial force and an overturning moment at the same time. The construction machinery of rotary conveyor, welding manipulator, small and medium-sized crane and excavator can be selected.
Our company has passed the ISO 9001 quality system certification in 2008, and implemented the JB/T 2003-2011 standard and the corresponding national standards.