NSK 6308DDU

NSK 6308DDU Deep Groove Ball Bearing

Description

The NSK 6308DDU is a single-row deep groove ball bearing designed for high-speed operation and supporting both radial and axial loads. It features DDU contact seals on both sides, which provide excellent protection against dust and contaminants while ensuring lubricant retention. This makes it a reliable choice for various industrial machinery.

Specifications

• Bore Diameter (d): 40 mm
• Outside Diameter (D): 90 mm
• Width (B): 23 mm
• Seals: DDU – Contact rubber seals on both sides
• Basic Dynamic Load Rating (C): 41 kN
• Basic Static Load Rating (C0): 24 kN
• Cage Material: Steel

Label Info

• Brand: NSK
• Model: 6308DDU
• Part Number Suffixes: AS2S

Application

This bearing is commonly used in applications such as electric motors, pumps, gearboxes, conveyors, and other rotating machinery where reliability and sealing are critical.

Country of Origin

This product is manufactured in Brazil by NSK Brasil Ltda.

CO2 Impact

Opting for this refurbished bearing prevents the emission of approximately 1.26 kg of CO2 compared to manufacturing a new one. This saving is equivalent to the emissions of driving a car for over 6 km. Make a sustainable choice for your operations.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What does the ‘DDU’ suffix mean on an NSK bearing?

The ‘DDU’ suffix indicates that the bearing is equipped with contact-type synthetic rubber seals on both sides. These seals ride on the inner ring, providing excellent protection against external contaminants and superior grease retention compared to non-contact seals.

Is the grease in this bearing suitable for high-temperature applications?

The standard grease in NSK DDU bearings is typically rated for a temperature range of -25 deg C to +120 deg C. For applications consistently exceeding this range, a special high-temperature grease and bearing configuration would be required.

Can I replace an SKF 6308-2RS1 with this NSK 6308DDU bearing?

Yes, the NSK 6308DDU is a direct dimensional equivalent to the SKF 6308-2RS1. Both are 40x90x23mm deep groove ball bearings with contact seals on both sides. They are functionally interchangeable for most applications.

spareparts2day is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners.

Last Update: Friday, March 13, 2026