Single-row angular contact bearings can sustain axial, radial, and combined loads, provided the axial load is unidirectional. Designs with larger contact angles can take higher axial loads, while smaller contact-angle designs allow for high-speed operations. The bore diameter can vary from 10mm to 170mm, and polyamide, steel, or bronze cages / retainers are available. Xuzhou Fenghe Intelligent Technology Co., Ltd. has introduced internationally advanced large equipment, including closing female die forging press, numerical control grinding machine, forging operation machine, TK6920 numerical control floor type boring and milling machine, numerical control 5m standing type lathe, numerical control 5m tooth-milling machine, numerical control drilling machine, hardening and tempering apparatus, checker, etc.