NSK 6003DDUCM

NSK 6003DDUCM Deep Groove Ball Bearing Description This is a single-row deep groove ball bearing, model 6003DDUCM, manufactured by NSK. It is designed for high-speed operation and can accommodate both radial and axial loads. The ‘DDU’ suffix indicates that it is equipped with contact seals on both sides, providing excellent protection against contaminants and retaining lubricant. The ‘CM’ suffix specifies a special internal clearance for electric motor applications, ensuring low noise and vibration levels. Specifications Manufacturer: NSK Type: Single-Row Deep Groove Ball Bearing Model: 6003DDUCM Bore Diameter: 17 mm Outer Diameter: 35 mm Width: 10 mm Seals: DDU – Contact Seals on Both Sides Clearance: CM – Special Clearance for Electric Motors Material: High Carbon Chromium Bearing Steel Label Info Brand: NSK Bearings Part Number: 6003DDUCM Also Listed As: 6003DDU Application This bearing is versatile and commonly used in a wide range of applications, particularly in electric motors, pumps, gearboxes, and general industrial machinery where low noise and reliable sealing are critical. Country of Origin Made in Poland. CO2 Impact Choosing this surplus bearing over a new one saves approximately 0.09 kg of CO2, contributing to a more sustainable industrial practice. Availability This item is in stock and ready for immediate dispatch. Order now from profideals for expert support and fast delivery. FAQ What is the difference between NSK’s DDU and ZZS seals? DDU refers to a double contact rubber seal (one on each side) which provides excellent protection against dust and moisture, but has slightly higher friction. ZZS refers to a double non-contact metal shield, which offers lower friction and is suitable for higher speeds, but provides less protection against fine contaminants and liquids. The DDU seal on this 6003DDUCM is ideal for moderately contaminated environments. What does the ‘CM’ suffix signify in the part number 6003DDUCM? The ‘CM’ suffix is an NSK-specific designation for radial internal clearance. It is specifically intended for electric motor applications. This clearance range is designed to reduce noise and vibration, ensuring quieter and smoother operation compared to standard CN (Normal) clearance bearings. Can I use a standard C3 clearance bearing as a direct replacement for this CM clearance bearing? While a C3 clearance bearing has a larger radial play than a CN (Normal) clearance bearing and is often used in electric motors, the CM clearance is a more specific range tailored by NSK for low-noise applications. For non-critical applications, a C3 might suffice, but to maintain original equipment performance, especially regarding noise levels, it is highly recommended to use the specified CM clearance bearing. profideals 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