KA120XP0 ultra thin wall four point contact ball bearing is maximum‑size KA‑XP0 series equal‑cross‑section four‑point contact ball bearing. It keeps slim KA‑series cross‑section even for maximum bore dimension,undertakes multi‑direction combined loads. Mainly adopted in oversized compact rotary tables,large special‑purpose optical equipment and super‑large‑bore precision automation rotary components.

X-type four-point contact ball bearings - KA series feature an optimized four-point contact raceway geometry with a split inner ring and single outer ring design (or vice versa), allowing compact support of radial loads while accommodating high axial loads in both directions with minimal clearance. Available in standard, thin-section, and heavy-duty configurations, with bore diameters ranging from 25mm to 400mm. These bearings deliver high axial rigidity, compact design, reliable moment load capacity, and reduced system weight, making them ideal for slewing rings, industrial robot joints, crane turntables, packaging machinery, and precision rotary tables.