YB00001703 BRG.;ROL. HITACHI/LANDCROS for ZX225USLC-7

Heavy-Duty Load Support for Rotating Assemblies – Engineered to Handle High Radial and Thrust Loads with Minimal Friction.
The roller bearing is a precision component designed to support rotating shafts, gears, and wheels under high radial loads—and, depending on type (cylindrical, spherical, or needle), also significant thrust loads . This genuine Hitachi roller bearing is manufactured to exact dimensional tolerances for bore diameter, outer diameter, width, and internal clearance, ensuring proper fit, alignment, and load distribution . Available in multiple configurations including XB00009910 (0.4kg) , 4355279 (ZX120/4BG1T) , 4662107 (ZX70-5A/4TNV98) , YB00001358 (ZX200-5G/6BG1) , and 4192975 (travel device applications) , it provides smooth, low-friction rotation and extended service life in final drives, transmissions, swing devices, and wheel hubs .

Premium Materials for Extreme Durability – Case-Hardened Alloy Steel with Precision-Ground Rollers and Raceways.
Manufactured from high-grade, vacuum-degassed chromium steel, this genuine roller bearing features precision-ground rollers, raceways, and flanges that minimize surface stress and rolling resistance . The optimized roller geometry—crowned or profiled—ensures even load distribution across the roller length, preventing edge loading and premature fatigue . Advanced heat treatment provides a hard, wear-resistant surface with a tough, impact-resistant core, while robust cages (stamped steel, machined brass, or polymer) maintain proper roller spacing—reducing friction and heat generation even under high-speed or shock-load conditions .