In the vanguard of high-precision motion systems, where space is constrained, dynamic loads are complex, and micron-level accuracy is non-negotiable, INA Combined Radial-Super Precision Bearings represent a pinnacle of integrated engineering. These are not merely assemblies; they are meticulously designed systems, embodying Schaeffler Group’s mastery in combining radial and axial load support, exceptional rigidity, and super precision running accuracy within a single, compact unit. Designed for the most demanding applications in machine tool spindles, robotics, semiconductor manufacturing, and high-end automation, they eliminate the compromises inherent in using separate radial and thrust bearings, delivering unparalleled performance and reliability.
Core Concept & Defining Innovation:
The fundamental breakthrough lies in the intelligent integration of distinct bearing functionalities into one cohesive unit. Unlike traditional setups requiring separate radial bearings (e.g., cylindrical roller, deep groove ball) and axial bearings (e.g., angular contact ball, axial roller), INA Combined Radial-Super Precision Bearings provide:
Simultaneous High Radial & Axial Load Capacity: Engineered to support substantial forces acting perpendicularly (radial) and parallel (axial) to the shaft axis, often in both axial directions.
Tilting Moment Resistance: The specific internal geometry inherently provides resistance to moments that tend to tilt the shaft relative to the housing.
Supreme System Rigidity: By integrating functions into a single rigid structure, these bearings achieve exceptional combined axial and radial stiffness, minimizing deflection under complex loads – critical for machining accuracy and positional stability.
Super Precision Performance: Manufactured to ISO P4, SP, UP, or equivalent/exceeding tolerances, ensuring minimal running error (runout), ultra-low vibration/noise (NRRO), precise preload, and thermal stability.
Space Optimization: Significantly reduces axial and radial envelope compared to discrete bearing solutions, enabling more compact and lightweight machine designs.
Simplified Mounting & Reduced Components: A single pre-assembled, pre-adjusted unit simplifies installation, reduces the Bill of Materials (BOM), minimizes tolerance stack-ups, and enhances system reliability.
INA Combined Radial-Super Precision Bearings transcend conventional bearing solutions. They represent a holistic approach to high-performance motion control, integrating radial and axial support, supreme rigidity, and nanometer-level precision into singular, optimized units. By eliminating the interfaces and stack-ups of discrete bearing arrangements, they deliver unparalleled system stiffness, accuracy, reliability, and space efficiency. Whether enabling the cutting forces and precision of a 5-axis machining center spindle (HDS/HCD), providing the unwavering stability for a semiconductor wafer stage (XSU), or articulating a surgical robot’s wrist with pinpoint accuracy, these bearings are engineered for the most demanding challenges at the forefront of technology. Leveraging INA’s X-life enhancements, bainite hardening, hybrid technology, and precision manufacturing mastery, they provide the robust, accurate, and integrated foundation essential for next-generation industrial innovation. Success demands partnering with INA’s technical expertise for meticulous selection, precise mounting, and optimal lubrication – unlocking the full potential of these pinnacle precision components. Consult INA’s comprehensive super precision catalogs, technical documentation, and application engineering resources to specify the ideal combined solution for your ultimate precision challenge.
