Steel ball/Roller:carbon-chromium bearing steel GCr15SiMn or GCr15 for rolling Material
Cage: include integral cage, segment cage and spacer-type cage. 20# steel or copper for integral and segment cages, PA 1010 resin or QA110-3-105 albronze for spacer-type cages.
Seals:uses NBR or VITON, few felted wool.
Single row four point composed of two seat rings. has compact structure, light weight, and four-point contact between steel ball and arc raceway. It can bear axial force, radial force and overturning moment at the same time. The construction machinery of rotary conveyor, welding manipulator, small and medium-sized crane and excavator can be selected.