NSK 6210 ZZ C4 Bearing 50x90x20 - High-Speed Deep Groove Ball Bearing

Description and Applications

The NSK 6210 ZZ C4 is a high-precision deep groove ball bearing designed for high-speed and high-temperature industrial environments.
Manufactured by NSK, one of the world’s leading bearing producers, this bearing ensures exceptional durability, precision, and reduced friction.

Featuring double metal shields (ZZ), it provides effective protection against dust and contaminants while maintaining optimal lubrication for long-term, maintenance-free operation.
The C4 internal clearance allows for expansion under high operating temperatures, making it suitable for motors, gearboxes, compressors, pumps, and heavy-duty machinery.

Typical applications include:

• Electric motors and industrial drives

• Compressors and gearboxes

• Agricultural and construction equipment

• Conveyor systems and processing machinery

• High-speed, continuous-duty mechanical systems

Key Advantages

• C4 clearance - designed for high-speed and high-temperature performance, preventing premature wear.

• Double metal shields (ZZ) - protect internal components from dust, dirt, and fine particles.

• High load capacity - supports both radial and limited axial loads.

• Low vibration and noise - ideal for precision rotating machinery.

• Made by NSK - globally recognized Japanese quality and engineering excellence.

Technical Specifications

• Manufacturer: NSK

• Model: 6210 ZZ C4

• Type: Deep groove ball bearing, single row

• Dimensions: 50x90x20 mm

• Shields: ZZ (double metal shields)

• Internal clearance: C4 (increased)

• Material: High-grade bearing steel

• Lubrication: Pre-lubricated, maintenance-free

FAQ - Frequently Asked Questions

1. What does C4 clearance mean in the NSK 6210 ZZ C4 bearing?
C4 indicates an increased internal clearance, allowing the bearing to operate at higher speeds and temperatures without seizing or excessive friction.

2. What is the purpose of the ZZ shields?
The double metal shields (ZZ) protect the bearing from dust and debris while keeping the factory-applied grease inside for long-term operation.

3. Can the 6210 ZZ C4 bearing be used in electric motors?
Yes. This bearing is widely used in electric motors, offering low noise, reduced friction, and extended service life.

4. How does this bearing differ from the 6210 2RS type?
The 2RS version uses rubber seals for enhanced moisture protection, while the ZZ version is preferred for higher speed and temperature applications.

5. Is the NSK 6210 ZZ C4 suitable for continuous-duty operation?
Yes, it is specifically designed for continuous or high-speed industrial environments.