695ZZ Ball Bearing Specifications | NKMB 695ZZ / 695-2RS Miniature Deep Groove Bearings

Introduction to NKMB 695ZZ Ball Bearings

The NKMB 695ZZ ball bearing is a miniature deep groove ball bearing designed for high-speed, low-noise, and long-life performance in compact mechanical systems. With its small size and precision construction, the 695 series bearing is widely used in electric motors, robotics, medical devices, and precision instruments.

NKMB manufactures 695ZZ and 695-2RS bearings using advanced grinding technology, high-grade materials, and strict quality control to meet global standards.

695ZZ / 695-2RS Ball Bearing Dimensions

The compact 5 × 13 × 4 mm size makes the 695 bearing ideal for applications where space and weight are limited.

Seal Types: 695ZZ vs 695-2RS

695ZZ (Double Metal Shield)

• Low friction

• High speed capability

• Dust protection

• Suitable for clean environments

695-2RS (Double Rubber Seal)

• Excellent sealing performance

• Moisture and grease retention

• Better for harsh or humid environments

• Slightly lower maximum speed than ZZ type

Precision Grades of NKMB 695 Bearings

NKMB 695 bearings are available in multiple accuracy classes:

• P0 (Standard Precision)

• P6 (High Precision)

• P5 (Ultra Precision for instruments and motors)

Higher precision reduces vibration, improves rotational stability, and increases service life.

Radial Clearance Options

NKMB provides several clearance levels to match different operating conditions:

• C0 – Normal clearance

• C2 – Reduced clearance (high accuracy applications)

• C3 – Increased clearance (high-speed or high-temperature use)

Noise and Vibration Performance

NKMB 695ZZ / 695-2RS bearings are engineered for low noise and low vibration, available in:

• Z1 – Low noise

• Z2 – Extra low noise

• Z3 – Ultra-quiet grade

Precision steel balls and super-finished raceways ensure smooth and stable operation.

Load Ratings (Typical Values)

(Values may vary depending on material and internal design.)

Maximum Speed

Speed limits depend on lubrication, clearance, and operating conditions.

Operating Temperature Range

• Standard grease: −20°C to +120°C

• High-temperature grease option: up to +150°C

• Stainless steel version: improved corrosion and temperature resistance

Bearing Material Options

• High carbon chrome steel (GCr15 / SUJ2)

• Stainless steel (440C)

• Optional ceramic balls (hybrid bearing)

Service Life Advantages of NKMB 695 Bearings

• High-purity steel improves fatigue life

• Optimized internal geometry reduces friction

• Precision grease filling ensures long-term lubrication

• Consistent quality for OEM and bulk applications

NKMB 695 bearings typically offer 20–40% longer service life compared with standard miniature bearings.

Typical Applications of 695ZZ / 695-2RS Bearings

• Miniature electric motors

• Drones and UAV motors

• Medical equipment

• Precision instruments

• Robotics and automation

• Office equipment

• 3D printers

• Micro gearboxes

• Model vehicles and hobby motors

Why Choose NKMB 695ZZ Bearings?

✔ High precision and stable quality
✔ Low noise and smooth rotation
✔ Long service life
✔ Wide seal and clearance options
✔ Professional miniature bearing manufacturer

NKMB is a trusted brand for miniature and thin-section ball bearings, supplying reliable solutions to global customers.

Conclusion

The NKMB 695ZZ / 695-2RS miniature ball bearing combines compact size, high precision, low noise, and durability, making it an ideal choice for demanding small-scale applications. Whether you need high speed or superior sealing, NKMB offers the right 695 bearing solution.