NSK 6203+CM Deep Groove Ball Bearing

Description

The NSK 6203+CM is a high-performance single-row deep groove ball bearing from the NSKHPS series. With dimensions of 17x40x12mm, it is engineered for exceptional durability and precision. The 'CM' suffix indicates a special internal clearance suitable for electric motor applications, ensuring low noise and vibration operation. This open-type bearing is designed for high-speed capabilities and can accommodate both radial and axial loads in both directions.

Specifications

• Manufacturer: NSK
• Part Number: 6203+CM
• Type: Deep Groove Ball Bearing
• Bore Diameter: 17 mm
• Outside Diameter: 40 mm
• Width: 12 mm
• Internal Clearance: CM (for electric motors)
• Seals/Shields: Open
• Cage Material: Steel
• Series: NSKHPS

Label Info

• Brand: NSK Bearings
• Model: 6203+CM
• Additional Code: 310
• Series Marking: NSKHPS

Application

This bearing is ideal for a wide range of applications, especially in electric motors, fans, pumps, and other machinery where low noise, low vibration, and high-speed performance are critical.

Country of Origin

Made in Japan.

CO2 Impact

By choosing this repurposed bearing, you are saving approximately 0.13 kg of CO2 emissions. This is equivalent to the energy needed to charge a smartphone more than 15 times.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The 'CM' suffix specifies a particular range of radial internal clearance that is optimized for small electric motor applications. This clearance helps to minimize noise and vibration during operation, which is critical for motor performance and longevity.

As an open-type steel bearing without special grease, the standard NSK 6203+CM is suitable for operating temperatures up to 120 deg C (250 deg F). For applications exceeding this temperature, a bearing with a different clearance (like C3 or C4) and specialized high-temperature grease would be required.

Yes, but it depends on the application's environment. A ZZ (metal shields) or DDU (contact rubber seals) version provides protection against contaminants. However, shields and seals can slightly increase friction and may have lower maximum speed ratings compared to this open version. Choose based on whether your application requires protection from dust and moisture.

Last Update: Friday, March 13, 2026

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