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The NSK 6905DDU is a sealed deep groove ball bearing with 25 mm bore. It features double contact rubber seals (DDU) for effective contaminant exclusion and a pressed steel cage. Suitable for electric motors, pumps, fans, and general industrial applications.
MODEL 6905DDU
$119.93 Each
Prices are subject to change
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Returnable: Yes
Bearings The NSK 6905DDU is a high-performance ball bearing from the renowned 6900 Series, designed to provide exceptional reliability and efficiency in a variety of applications. Built by NSK, a leader in the bearing industry, this ball bearing exemplifies precision engineering and quality craftsmanship.
Key Features
- Type: Deep groove ball bearing, ideal for accommodating radial and axial loads in both directions
- Sealing: Double rubber seal (DDU) design protects against contamination and retains lubrication for extended service life
- Dimensions: Inner diameter of 25 mm, outer diameter of 42 mm, and a width of 9 mm, ensuring compatibility with various assemblies
- Material: High-quality chrome steel construction for increased durability and resistance to wear
- Load Capacity: Dynamic load rating of 5, 620 N and static load rating of 3, 380 N, suitable for demanding applications
Applications
- Automotive: Used in wheel hubs, electric power steering systems, and other critical automotive components requiring high load capacity and reliability
- Industrial Equipment: Ideal for electric motors, pumps, and various machinery where smooth operation and longevity are essential
- Electric Vehicles: Optimized for modern applications, particularly in sectors focusing on energy efficiency and performance
Benefits
- Enhanced Durability: The double seal design provides superior protection against dirt and moisture, minimizing maintenance needs and prolonging bearing life
- Smooth Operation: The deep groove design ensures reduced friction and quieter performance, enhancing overall system efficiency
- Versatile Compatibility: Ideal for a wide range of applications, making it a reliable choice for engineers and manufacturers
Product information compiled with AI assistance for reference purposes.
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
What is the difference between deep groove and angular contact ball bearings?
Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.
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