KAA10XL0 ultra thin wall four point contact ball bearing belongs to KAA‑XL0 Reali‑Slim thin‑section bearing family with 0.188‑inch equal square cross‑section. Made of premium 52100 chrome bearing steel and fitted with brass snap‑over cage. This Type‑X four‑point contact bearing can simultaneously undertake radial loads, bidirectional axial loads and overturning moment loads. It delivers low‑friction smooth rotation with compact lightweight profile, one single bearing can replace two angular contact bearings to save installation space. Widely used for miniature rotary tables,optical instruments,small robot joints and compact precision automation equipment under strict space‑limited conditions.

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.