NKMB 628ZZ Miniature Bearing 8x24x8mm

In the world of precision engineering, the 628ZZ miniature bearing (8x24x8mm) is a cornerstone component. Whether you are maintaining industrial machinery or developing high-speed robotics, the quality of your bearings determines the lifespan and efficiency of your equipment.

At NKMB, we specialize in delivering professional-grade 628ZZ bearings designed to minimize friction and maximize durability.

Technical Specifications: 628ZZ (8x24x8mm)

Understanding the dimensions and tolerances is critical for a perfect fit. The NKMB 628ZZ follows international standard sizing:

• Bore Diameter (Inner): 8mm

• Outer Diameter: 24mm

• Width (Thickness): 8mm

• Shielding: Double Metal Shields (ZZ)

• Material: High-Quality Chrome Steel (GCr15)

• Precision Rating: ABEC-3 to ABEC-5 (depending on custom requirements)

Why Choose the NKMB 628ZZ Bearing?

1. Superior Dust and Contaminant Protection

The “ZZ” designation refers to the dual metal shields on both sides of the bearing. This design ensures that factory-applied grease stays inside while keeping dust, dirt, and moisture out—essential for maintaining performance in harsh environments.

2. High-Speed Performance

NKMB uses advanced heat-treatment processes to enhance the hardness of the steel. This allows our 628ZZ-miniature-bearing-8x24x8mm to operate at high RPMs with minimal heat generation, reducing the risk of premature failure.

3. Low Noise and Vibration

Our precision-ground raceways ensure a smooth rolling motion. For applications like electric motors or office equipment, NKMB bearings provide the silent operation required for modern standards.

Common Applications

The versatility of the 8x24x8mm size makes it a popular choice across various industries:

• Small Electric Motors: Providing stable rotation for household appliances.

• Power Tools: Handling the high torque and speed of drills and sanders.

• Automotive Aftermarket: Used in alternators and specialized sensors.

• 3D Printers & CNC Machines: Ensuring precise linear and rotational movement.

Maintenance Tips for Long-Lasting Bearings

To get the most out of your NKMB 628ZZ bearings:

1. Avoid Overloading: Ensure the radial and axial loads stay within the specified limits.

2. Proper Installation: Use the correct tools to avoid putting pressure on the outer ring during installation.

3. Environmental Control: While shielded, keeping bearings away from extreme moisture will further prevent oxidation.

Conclusion: Quality You Can Trust

When you choose the NKMB 628ZZ-miniature-bearing-8x24x8mm, you are investing in reliability. Our rigorous quality control ensures that every bearing leaving our facility meets the highest industrial standards.

Get a Quote from NKMB Today

Are you looking for bulk pricing or custom precision ratings for your next project?

Contact the NKMB engineering team today for high-quality miniature bearing solutions.