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Introduction to NKMB 624-ZZ Mini Ball Bearing
The 624-ZZ Mini Ball Bearing 4x13x5 Shielded (NKMB-624ZZ) is a compact deep groove ball bearing designed for high-speed rotation, low noise, and stable performance in miniature and precision equipment. Manufactured by NKMB, this bearing meets international quality standards and is widely used in industrial, commercial, and consumer applications where space is limited but performance is critical.
Detailed Parameters of 624-ZZ Mini Ball Bearing
| Parameter | Specification |
|---|---|
| Bearing Model | 624-ZZ |
| Brand | NKMB |
| Bearing Type | Deep Groove Ball Bearing |
| Inner Diameter (ID) | 4 mm |
| Outer Diameter (OD) | 13 mm |
| Width | 5 mm |
| Shield Type | Double Metal Shields (ZZ) |
| Material | Chrome Steel (GCr15) |
| Ball Material | Hardened Steel |
| Cage Material | Steel Cage |
| Lubrication | Pre-lubricated High-Speed Grease |
| Precision Grade | ABEC-1 / ABEC-3 (optional) |
| Radial Internal Clearance | C0 (standard), C3 optional |
| Maximum Speed (Grease) | Approx. 32,000 RPM |
| Operating Temperature | -20°C to +120°C |
| Noise Level | Low noise, smooth rotation |
| Weight | Approx. 2.8 g |
Key Features of NKMB-624ZZ Bearing
1. High Precision and Low Friction
NKMB uses advanced grinding and super-finishing processes to ensure accurate dimensions, low vibration, and stable rotation, even at high speeds.
2. Double Metal Shield Protection
The ZZ shielded design protects internal components from dust and contaminants while retaining lubrication, extending bearing lifespan.
3. Compact Size with Reliable Load Capacity
Despite its miniature size, the 624-ZZ bearing can handle moderate radial loads, making it ideal for continuous operation.
4. Long Service Life
Through optimized heat treatment and material selection, NKMB bearings provide excellent wear resistance and durability.
Applications of 624-ZZ Mini Ball Bearing
The NKMB 624-ZZ Mini Ball Bearing is widely used in:
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Miniature electric motors
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Cooling fans and blowers
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Office automation equipment
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Robotics and automation systems
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Precision instruments
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Medical devices
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Household appliances
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DIY tools and hobby equipment
Why Choose NKMB Mini Ball Bearings?
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Strict quality control and inspection
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Stable and consistent production quality
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OEM and customized packaging available
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Competitive factory pricing
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Trusted by global customers
NKMB focuses on delivering high-performance miniature bearing solutions for modern mechanical and electronic equipment.
Conclusion
The 624-ZZ Mini Ball Bearing 4x13x5 Shielded NKMB-624ZZ combines compact design, durable shielding, and reliable performance. With detailed specifications, low noise operation, and long service life, it is an ideal choice for precision applications requiring smooth and efficient rotation.
For high-quality mini ball bearings, NKMB is a dependable brand you can trust.
