KC040XP0 ultra thin wall four point contact ball bearing belongs to KC‑XP0 Reali‑Slim thin‑section bearing family with 0.500‑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 rotary tables,optical instruments,robot joints and compact precision automation equipment under strict space‑limited conditions.

X-type four-point contact ball bearings - KC series feature a high-speed optimized four-point contact raceway design with lightweight cages and precision-balanced internal geometry, delivering reliable axial and radial load support at elevated rotational speeds while maintaining bidirectional load capability. Available in standard and thin-section high-speed configurations, with bore diameters ranging from 20mm to 250mm. These bearings deliver low friction heat generation, high-speed stability, compact design, and excellent positional accuracy, making them ideal for high-speed slewing rings, precision rotary tables, indexing devices, packaging machinery, and high-speed automation equipment.