698ZZ / 698-2RS Miniature Ball Bearing 8×19×6mm | NKMB Precision Bearings

Le 698ZZ / 698-2RS miniature deep groove ball bearing is a widely used precision bearing designed for compact equipment requiring high speed, low noise, and long service life. Manufactured by NKMB, a professional bearing brand, the 698 series is known for stable performance, strict quality control, and excellent cost efficiency.

With a standard size of 8 × 19 × 6 millimetro, the NKMB 698 bearing is ideal for small motors, electric tools, office equipment, and automation systems.

698ZZ / 698-2RS Bearing Basic Specifications

Difference Between 698ZZ and 698-2RS

• 698ZZ

  • Doppi scudi metallici

  • Lower friction, suitable for high-speed applications

  • Best for clean or semi-clean environments

• 698-2RS

  • Double rubber seals

  • Better dust and moisture protection

  • Suitable for humid or dusty environments

Gradi di precisione & Radial Clearance

NKMB 698 bearings are available in multiple precision and clearance options:

• Gradi di precisione:

  • ABEC-1 (P0) – Standard

  • ABEC-3 (P6) – High precision

  • ABEC-5 (P5) – Ultra precision (optional)

• Radial Clearance:

  • CN (Normal)

  • C3 (Higher clearance for high-speed or high-temperature use)

Rumore & Vibration Performance

NKMB strictly controls noise and vibration levels during production:

• Low noise design suitable for quiet-running equipment

• Smooth rotation and stable performance

• Ideal for applications with strict vibration requirements such as small motors and fans

Velocità & Portata (Typical)

• Maximum Speed:

  • 698ZZ: Higher speed capability

  • 698-2RS: Slightly lower due to seal friction

• Portata (reference):

  • Dynamic Load: Suitable for light to medium loads

  • Static Load: Stable under continuous operation

(Exact values can be customized according to customer requirements.)

Operating Temperature Range

• Standard grease: -20°C to +120°C

• High-temperature grease (optional): up to 150°C

Service Life & Reliability

Thanks to high-quality raw materials, precision grinding, and strict inspection, NKMB 698ZZ / 698-2RS bearings provide:

• Long service life

• Reduced maintenance costs

• Consistent performance over extended operating cycles

Typical Applications of 698ZZ / 698-2RS Bearings

• Piccoli motori elettrici

• Utensili elettrici

• Office equipment

• Cooling fans

• Dispositivi medici

• Robotics & automation systems

• Model motors and hobby equipment

Why Choose NKMB 698 Miniature Bearings?

✔ Stable quality and strict inspection
✔ Low noise and low vibration
✔ Multiple sealing and clearance options
✔ Competitive pricing with factory supply
✔ Customization available for OEM & ODM

Conclusione

Le NKMB 698ZZ / 698-2RS miniature deep groove ball bearing is an excellent choice for applications demanding precision, reliability, and durability in a compact size. Whether you need high-speed performance or superior sealing, NKMB provides the right bearing solution for your needs.

Contact NKMB today to get technical support, samples, or bulk pricing for 698ZZ / 698-2RS bearings.