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Miniature ball bearings play an essential role in compact, high-speed rotating systems. Among them, the 696 series (696ZZ / 696-2RS) is one of the most widely used micro deep groove ball bearings, known for its small size, stable performance, and long service life.

As a professional precision bearing manufacturer, NKMB provides high-quality 696 miniature ball bearings with excellent noise level, durability, and sealing performance that meet international standards.


1. 696 Bearing Size & Basic Parameters

Parameter Value
Inner Diameter (d) 6 mm
Outer Diameter (D) 15 mm
Width (B) 4.5 mm
Structure Single-row deep groove ball bearing
Series 696

These dimensions make the 696 bearing ideal for tight spaces, micro transmission systems, and high-speed rotating parts.


2. Types of 696 Bearings: ZZ and 2RS

✔ 696ZZ — Metal Shielded

  • Equipped with double metal shields (ZZ)

  • Protects against dust and small particles

  • Allows higher RPM

  • Suitable for clean environments and small motors

✔ 696-2RS — Rubber Sealed

  • Equipped with double rubber seals (2RS)

  • Excellent water, moisture, and oil protection

  • Slightly lower RPM than ZZ

  • Best for outdoor, humid, or dusty environments

NKMB offers both types depending on different usage scenarios.


3. Material Options (NKMB Standard)

✔ Chrome Steel GCr15 / 52100

  • High hardness

  • Strong wear resistance

  • Long service life

  • Suitable for most mechanical applications

✔ Stainless Steel 440C / 304 / 316 (Optional)

  • Anti-rust and anti-corrosion

  • Ideal for food machinery, medical devices, water environments


4. Precision, Clearance & Noise Level

Item NKMB Standard
Precision Class ABEC-1 / ABEC-3 (ABEC-5 optional)
Radial Clearance C0 (standard) / C3 (high-speed)
Noise Level Z1 / Z2 low-noise grades
Lubrication High-speed or anti-water grease

NKMB 696 bearings are widely chosen for devices requiring smooth rotation, low friction, and minimal vibration.


5. Load Ratings (Reference)

Item Value
Dynamic Load (C) ~1.36 kN
Static Load (C0) ~0.52 kN
Max Speed (ZZ) Up to 45,000 RPM
Max Speed (2RS) Up to 28,000 RPM

Exact load may vary depending on materials and lubrication.


6. Applications of 696 Miniature Bearings

The 696 bearing is widely used in:

✔ Micro Motors

Blower motors, cooling fans, cordless devices, high-speed electric motors.

✔ RC Models

RC cars, airplanes, drones, and brushless motors.

✔ 3D Printers & Robotics

Extruders, gantry wheels, guide rollers, precision movement components.

✔ Electric Tools

Grinders, drills, screwdrivers, polishing tools.

✔ Sports Equipment

Skate wheels, roller skates, scooters.

✔ Home Appliances

Vacuum cleaners, juicers, coffee machines, and small pumps.

✔ Medical & Laboratory Equipment

Micro-instruments and diagnostic devices.

NKMB 696 bearings maintain consistent performance even in high speed, continuous working environments.


7. Why Choose NKMB 696 Miniature Bearings?

1. Ultra-smooth low-noise rotation

NKMB uses high-quality balls and raceways with strict noise controls (Z1/Z2 grades).

2. High-precision manufacturing

Automatic grinding and assembly ensure excellent tolerance and stability.

3. Long-life lubrication

High-speed grease reduces wear and heat generation.

4. Multiple seal types & materials

ZZ / 2RS, stainless steel, different clearances available.

5. Suitable for OEM & global distribution

NKMB supports bulk orders, brand customization, and global shipping.


Conclusion

Miniature 696 ball bearings (6×15×5mm) are essential in high-speed and compact mechanical systems. Whether you need dust-proof (696ZZ) or fully sealed waterproof bearings (696-2RS), NKMB provides stable quality, smooth rotation, and long-term durability that meet global standards.