61838 INA deep groove ball bearing

INA 61838 Thin Section Deep Groove Ball Bearing (ISO 10 Series)

The INA 61838 is a high-performance rolling component from the thin-section series, engineered for applications with strictly limited installation space. Featuring an impressive 190 mm bore, its outer diameter is only 240 mm, with a width of just 24 mm. This geometry enables the support of large-diameter shafts with a minimal increase in housing size and overall system weight. The open design facilitates effective lubrication and heat dissipation, which is vital for modern high-precision rotary systems.

Application

• Robotics & Automation: Main rotation axes for large industrial robots and welding manipulators.
• CNC Machine Tools: Support for spindles and rotary tables requiring large internal passage.
• Aerospace & Defense: Radar systems, scanners, and antenna positioning mechanisms.
• Medical Equipment: Large diagnostic devices (e.g., CT scanners) requiring smooth motion with large bore diameters.
• Energy Sector: Compact shaft support in generators and turbine pitch mechanisms.

Technical Specification

• Manufacturer: INA (Schaeffler Group - Germany).
• Designation: 61838.
• Dimensions: 190 mm (ID) x 240 mm (OD) x 24 mm (Width).
• Internal Clearance: CN (Normal) – optimal for stable operating conditions.
• Cage: Precision steel cage, ball-guided.
• Design: Open type (no seals), cylindrical bore.

Features and Benefits

• Extreme Space Optimization: The exceptionally slender profile of the 618 series allows for significant machine housing miniaturization.
• Weight Reduction: Drastic reduction in steel volume compared to standard series lowers the overall and rotating mass of the equipment.
• High Running Precision: Manufactured to SCHAEFFLER premium standards, ensuring minimal radial and axial run-out.
• Low Frictional Torque: Small rolling elements and precision raceways minimize resistance, increasing energy efficiency.
• German Engineering: The use of high-purity steel ensures exceptional fatigue life and reliability.

Why Choose This Product

By choosing the INA 61838 bearing, you are investing in a product that solves design challenges where traditional bearings are too bulky. In 190 mm diameter applications, INA's manufacturing precision is critical for avoiding vibrations and ensuring longevity. With this thin-section series, you can design lighter, more modern, and more efficient equipment while relying on the uncompromising quality of an industry leader.