Brand: RBC
RBC 1638 DS TNT G 18 Thin Section Ball Bearing | Double Sealed, High Precision Specialty
The 1638 DS TNT G 18 is a high-precision thin section ball bearing engineered for applications requiring significant weight reduction and compact design without compromising load capacity or operational lifespan. This specialized bearing features a 38.100 mm (1.500 inch) bore and utilizes high-quality 52100 vacuum degassed chrome steel rings and balls for superior hardness and fatigue resistance. The 'DS' suffix indicates a contact double-seal configuration, providing exceptional contaminant exclusion and reliable grease retention, crucial for longevity in harsh or intermittently lubricated environments. The 'TNT' designation signifies a high-strength Polyamide (Nylon 6,6) cage, which offers superior material flexibility and reduced friction compared to traditional steel cages, enabling higher limiting speeds and quieter operation under moderate load conditions.
Designed primarily for precision machinery, aerospace ground support equipment, robotics, and rotary indexing tables where cross-section size is paramount, the 1638 DS TNT G 18 delivers reliable performance in dynamic applications. Its optimized internal geometry ensures reduced friction and heat generation, prolonging the life of the specialized G 18 lithium complex grease fill. Choosing this RBC specialty bearing ensures seamless integration into space-constrained assemblies, providing the robustness of a standard bearing while offering the critical dimensional advantages of a thin cross-section product line. This bearing provides an excellent balance of capacity, precision (typically ABEC 1/ISO P0), and operational efficiency.
Key Features
Thin Section Design: Maximizes space efficiency and reduces overall assembly weight compared to standard deep groove bearings.
DS Double Contact Seals: Excellent exclusion of contaminants (dust, moisture) and superior retention of the specialized G 18 lubricant.
