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Introduction to NKMB 624-ZZ Mini Ball Bearing

Le 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
Diametro interno (ID) 4 millimetro
Diametro esterno (OD) 13 millimetro
Larghezza 5 millimetro
Tipo di scudo Double Metal Shields (ZZ)
Materiale Acciaio al cromo (GCr15)
Ball Material Hardened Steel
Cage Material Steel Cage
Lubrificazione 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
Peso 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

Le 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

Le NKMB 624-ZZ Mini Ball Bearing is widely used in:

  • Miniature electric motors

  • Cooling fans and blowers

  • Office automation equipment

  • Robotics and automation systems

  • Precision instruments

  • Dispositivi medici

  • Household appliances

  • DIY tools and hobby equipment


Why Choose NKMB Mini Ball Bearings?

  • Strict quality control and inspection

  • Stable and consistent production quality

  • OEM and customized packaging available

  • Competitive factory pricing

  • Trusted by global customers

NKMB focuses on delivering high-performance miniature bearing solutions for modern mechanical and electronic equipment.


Conclusione

Le 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.