THK's Cross Roller Bearing RE SERIES represents a specialized linear motion component engineered for applications requiring outer ring rotation with exceptional precision and rigidity. This standard model features a unique crossed roller arrangement where cylindrical rollers are positioned at right angles to each other between the inner and outer rings, alternating direction in a single row. This configuration enables the bearing to simultaneously withstand radial, axial, and moment loads with high rotational accuracy and smooth operation. Manufactured with THK's precision grinding technology, the RE SERIES ensures minimal runout and consistent performance under demanding conditions. The technical features of the RE SERIES make it particularly suitable for applications where space constraints and performance reliability are critical. The compact design incorporates a single-piece outer ring and two inner rings, secured by a divider to maintain precise roller spacing and prevent skewing. This construction eliminates the need for additional components like holder rings or snap rings, simplifying installation while enhancing structural integrity. The bearings are available in various sizes with standardized dimensions, allowing for easy integration into existing machinery designs. Standard models come with pre-drilled mounting holes for straightforward fixation, and options include open-type or sealed variants to accommodate different environmental conditions. Performance advantages of the THK Cross Roller Bearing RE SERIES stem from its optimized roller geometry and high-quality material selection. The crossed roller arrangement provides a large contact area, distributing loads evenly across the rollers to minimize deformation and extend service life. This design results in high rigidity, capable of maintaining accuracy even under heavy loads or high-speed rotation. The low friction coefficient ensures efficient operation with minimal heat generation, reducing the need for frequent maintenance. Additionally, the RE SERIES offers excellent positional accuracy, with tolerances tight enough to support precise indexing and repetitive motion tasks. For enhanced durability, THK employs vacuum-degassed steel and, in some models, surface treatments to resist corrosion and wear. Typical applications for the RE SERERIES span multiple industries where rotational precision is paramount. In industrial machinery, these bearings are integral to rotary tables for machining centers, indexing units in automated assembly lines, and robot arm joints, where they facilitate smooth, accurate positioning. Within automotive systems, they are used in welding equipment turntables, engine testing apparatus, and precision gear mechanisms that demand reliable rotation under variable loads. In precision equipment, the RE SERIES finds use in medical device components like CT scanner gantries, semiconductor manufacturing tools including wafer handling robots, and optical instrument stages for alignment and inspection processes. Its versatility also extends to aerospace applications, such as antenna positioning systems and flight simulator actuators, where consistent performance under dynamic conditions is essential. By combining robust construction with advanced engineering, THK's RE SERIES Cross Roller Bearing delivers the reliability and precision required for today's high-tech industrial environments.

THK's Cross Roller Bearing for Outer Ring Rotation, Standard USP Grade Series Model RE SERIES, represents a pinnacle of precision engineering designed for applications demanding high rigidity, exceptional rotational accuracy, and smooth operation under complex load conditions. This bearing features a unique structure where cylindrical rollers are arranged crosswise between the inner and outer rings at a 90-degree angle to each other, with adjacent rollers oriented perpendicularly. This cross-roller arrangement enables a single bearing to simultaneously support radial, axial, and moment loads efficiently, eliminating the need for multiple bearing combinations and simplifying overall mechanical design. The outer ring rotation design is specifically optimized for scenarios where the outer ring is the rotating element, providing enhanced stability and performance. Key technical features include the use of high-grade steel, precision grinding to USP (Ultra Super Precision) grade tolerances, and a compact, space-saving design. The bearing is engineered with a high number of contact points, which distributes loads evenly and minimizes elastic deformation under stress. This results in significantly higher rigidity compared to conventional bearings. The raceway and rolling surfaces are finished to ultra-smooth levels, reducing friction and enabling precise, low-torque rotation. Optional sealing units are available to protect against contaminants like dust and moisture, extending service life in harsh environments. The RE SERIES is also designed for easy installation, with through-holes in the outer ring facilitating secure mounting. Performance advantages are substantial, starting with unparalleled rotational accuracy and repeatability, critical for applications requiring fine positioning. The high rigidity ensures minimal deflection under load, maintaining precision even in demanding operational conditions. This leads to improved machine performance, reduced vibration, and quieter operation. The bearing's efficiency in handling combined loads translates to longer service life and reduced maintenance intervals, lowering total cost of ownership. Its compactness allows for more streamlined machinery designs, saving valuable space without compromising on capability. Typical applications span across high-precision industries. In industrial machinery, the RE SERIES is ideal for rotary tables on machining centers, indexing heads, industrial robots, and automated assembly systems where precise angular positioning is crucial. Within automotive systems, it finds use in advanced manufacturing equipment, such as welding robot arms and precision testing devices, ensuring reliable performance under high-speed and high-load scenarios. In precision equipment, it is employed in semiconductor manufacturing apparatus, medical devices like CT scanners, and optical instruments, where smooth, accurate rotation is essential for achieving micron-level tolerances and repeatable results. This bearing series is a cornerstone for engineers seeking to enhance the accuracy, reliability, and efficiency of their rotational mechanisms.