NTN 5206 RR3 Double Row Angular Contact Ball Bearing | 30x62x23.8mm | Sealed | High Axial Load Capacity

The NTN 5206 RR3 is a high-precision, double-row angular contact ball bearing engineered to manage extreme combined loads where both high radial and significant axial forces are present. This configuration provides a rigid, non-separable assembly capable of accommodating thrust loads in both directions, making it superior to single-row arrangements in applications requiring robust shaft location. The bearing utilizes premium bearing steel, ensuring exceptional hardness and extended service life under continuous heavy-duty cycles. Furthermore, the 'RR3' designation indicates contact rubber seals on both sides, providing excellent retention of the factory-installed grease while excluding contaminants like dust, moisture, and fine particulates, thereby significantly reducing maintenance requirements and premature wear. Designed for critical industrial machinery, the 5206 RR3 is essential for maximizing uptime in demanding environments such as complex gearboxes, heavy-duty pumps, compressors, and high-speed machine tool spindles. Its optimized internal geometry minimizes running noise and heat generation, maintaining efficiency even at high operating speeds. As a Senior Product Manager, I recommend the NTN 5206 RR3 for installations requiring the highest standards of reliability, reduced operational clearance (C3 standard assumed for base model), and maximum protection against environmental factors, ensuring a substantial return on investment through durability and reduced friction.

Key Features

• Superior Double Row design handles simultaneous high radial and bidirectional axial loads.
• RR3 Contact Seals provide maximal protection against contamination and ensure optimal grease retention.
• High Dynamic Load Capacity (Cr) suitable for heavy-duty industrial transmission systems.
• Precision-engineered for low running temperatures and reduced vibrational noise.
• Pre-greased and sealed for life, minimizing maintenance downtime and extending operational lifespan.

Technical Specifications