NSK 6403 6404 6405 Zz DDU 2RS Deep Groove Ball Bearing

Product Specifications

Application Suitability

Need Reliable NSK Deep Groove Ball Bearings? Avoid Common Selection Mistakes

Finding the right bearing for your equipment can be challenging with the wide range of brands and models available. Many buyers face issues like incorrect dimensions leading to installation delays or low-quality bearings causing early failures and unexpected downtime. Sourcing from multiple suppliers for different brands also wastes valuable time in comparing prices and delivery times.

Engineered for Consistent Performance in Demanding Applications

Our NSK 6403, 6404, 6405 series deep groove ball bearings address these challenges with ISO 9001 certified production processes and rich stock availability. Available with Zz, DDU, and 2RS seals, these bearings are designed for long life, high speed, and low noise operation—ideal for use in工程机械 gearboxes, mining conveyors, and automation equipment where reliability is critical.

Optimal Performance in Radial Load Environments

These deep groove ball bearings excel in applications with primarily radial loads, such as electric motors and pump assemblies. The double row design enhances load-carrying capacity, while the aligning feature allows for minor misalignment, reducing stress on the bearing and extending service life. Operating temperatures should be within standard industrial ranges to maintain optimal performance.

Key Engineering Features for Reliable Operation

The precision rating options (P0 to P2) ensure compatibility with various equipment requirements—from general industrial use (P0) to high-precision machinery (P2). Clearance grades C0, C3, and C4 allow selection based on thermal expansion needs; C3 and C4 clearances are recommended for applications with higher operating temperatures. Constructed from high-quality bearing steel, these bearings offer excellent hardness and wear resistance, contributing to their long service life. The unseparated design simplifies installation and reduces maintenance complexity.

Why Choosing the Right Bearing Lowers Total Cost

Selecting a properly sized and rated bearing directly impacts your equipment’s total cost of ownership. Using a bearing with insufficient load capacity or incorrect clearance can lead to premature failure, resulting in unplanned downtime, replacement costs, and potential damage to adjacent components. Our NSK deep groove ball bearings, with their robust construction and precise manufacturing, help minimize these risks, ensuring longer intervals between maintenance and reducing overall operational expenses.

Quality You Can Trust in Every Bearing

Packaging & Shipping

• Packaged in cartons and pallets for secure transportation
• Ready for immediate dispatch from stock
• Flexible shipping options including sea, air, and express delivery
• Low minimum order quantity supported, suitable for both small and large volume purchases

Get Your NSK Bearing Quote Today

Whether you need the 6403, 6404, 6405, or other bearing models, provide us with the specific model number, dimensions, quantity, and destination. Our team will quickly respond with competitive pricing and delivery details. The sooner you confirm your requirements, the sooner we can arrange shipment to keep your operations running smoothly.

Frequently Asked Questions