NSK 6310DDUCM

NSK 6310DDUCM Deep Groove Ball Bearing

Description

The NSK 6310DDUCM is a high-quality single-row deep groove ball bearing, engineered for versatility and reliability. It features contact seals on both sides for excellent protection against dust and moisture, making it suitable for a wide range of industrial applications. The ‘CM’ clearance is specifically designed for electric motors, ensuring low-noise and low-vibration operation.

Specifications

• Manufacturer: NSK
• Type: 6310DDUCM
• Category: Deep Groove Ball Bearing
• Inside Diameter: 50 mm
• Outside Diameter: 110 mm
• Width: 27 mm
• Seals: DDU (Contact seals on both sides)
• Clearance: CM (Normal clearance for electric motors)
• Weight: Approx. 1.09 kg

Label Info

• Model: 6310DDUCM
• Additional Codes: D EEMS5

Application

This bearing is ideal for use in electric motors, pumps, gearboxes, fans, and general industrial machinery where reliability and protection from contaminants are critical.

Country of Origin

Made in Poland.

CO2 Impact

Choosing this reused bearing over a new one prevents the emission of approximately 2.18 kg of CO2, contributing to a more sustainable industrial environment.

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 ‘DDUCM’ suffix signify for this NSK bearing?

The ‘DDU’ indicates that the bearing is equipped with contact rubber seals on both sides, providing excellent protection against contamination and retaining grease. The ‘CM’ designates a specific internal clearance and noise/vibration level suitable for electric motor applications.

Is this bearing suitable for high-speed applications?

While DDU seals offer great protection, they create more friction than non-contact seals (ZZ) or open bearings. This bearing is suitable for moderate speeds. For very high-speed applications, a bearing with non-contact shields or an open design might be more appropriate, depending on the operating environment.

What is the recommended lubrication for a 6310DDUCM bearing?

This bearing comes pre-lubricated from the factory with a high-quality grease designed for a long service life. As it is a sealed unit (‘sealed-for-life’), it does not require re-lubrication under normal operating conditions.

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Last Update: Friday, March 13, 2026