KD250XP0 ultra thin wall four point contact ball bearing features extra giant bore while keeping KD‑series 0.500‑inch equal square cross‑section. Chrome bearing steel construction improves overall rigidity to cope with complex multi‑direction combined loads. Widely applied in extra‑large positioning rotary tables,large‑scale automation rotary units and oversized precision optical machinery.

X-type four-point contact ball bearings - KD series feature a corrosion-resistant four-point contact raceway design with stainless steel rings and balls, engineered to support bidirectional axial loads and moderate radial loads in harsh environments while maintaining reliable moment rigidity. Available in open, shielded, and sealed configurations, with bore diameters ranging from 15mm to 200mm. These bearings deliver excellent corrosion resistance, reliable performance in moist or chemically exposed conditions, and long maintenance-free service life, making them ideal for medical equipment, food processing machinery, marine systems, chemical processing equipment, and outdoor automation applications.