KAA15XL0 ultra thin wall four point contact ball bearing keeps consistent 0.188‑inch square thin cross‑section. Precision‑superfinished raceway guarantees high rotary accuracy and low friction torque. It accepts combined radial, bidirectional axial and overturning moment loads. Commonly deployed for compact positioning turntables,testing instruments,cobot small joints and light‑duty rotary automation machinery.

X-type four-point contact ball bearings - KAA series feature a specialized raceway design with a single inner ring and split outer ring (or vice versa) allowing the balls to make contact at four points, supporting radial loads and high axial loads in both directions simultaneously. Available in standard and thin-section configurations, with bore diameters ranging from 20mm to 300mm. These bearings deliver high axial load capacity, space-saving compact design, and excellent moment load rigidity, making them ideal for slewing rings, industrial robots, machine tool rotary tables, and material handling equipment.