The Model 1640 is a specialized, open-type radial ball bearing designed for applications where weight reduction, space constraints, and high running accuracy are paramount. Belonging to the thin section series, this bearing features a 4.000-inch bore, maintaining a remarkably small cross-section (0.250 inches) relative to its diameter. Constructed from vacuum-degassed 52100 bearing steel and often finished to ABEC 5 tolerances, the 1640 minimizes friction and offers exceptional stiffness and true running characteristics required for sensitive positioning systems. Its design ensures minimal energy consumption and reduced thermal generation, making it ideal for high-duty cycle equipment operating at moderate to high rotational speeds.
Optimized for use in robotics, optical tracking systems, laboratory instrumentation, and complex aerospace mechanisms, the RBC 1640 delivers reliability without the bulk of conventional bearings. The thin cross-section allows for significant downsizing of surrounding components, contributing to overall system mass reduction. Our manufacturing process ensures stringent control over raceway geometry and ball selection, guaranteeing consistent performance and extended service life even in demanding, oscillating load environments. Choosing the 1640 ensures that your high-precision equipment benefits from superior load distribution and rotational accuracy, protecting critical system performance and reducing maintenance overhead.
Key Features
Ultra-Thin Cross Section (0.25") for extreme space and weight reduction.
ABEC 5 Precision tolerances for high rotational accuracy and minimal runout.
Ideal for high-speed, intermittent, or continuous rotation applications.
Designed to minimize static and running friction for optimal low-torque operation.
Constructed from 52100 bearing steel for exceptional hardness and fatigue life.
Suitable for use in robotic arms, gimbals, optical sensors, and medical devices.
