Deep Groove Ball Bearing NSK 624 ZZ

NSK 624 ZZ - Double Shielded Ball Bearing 4x13x5 mm

The NSK 624 ZZ is a miniature deep groove ball bearing with dimensions 4 mm (inner diameter) x 13 mm (outer diameter) x 5 mm (width).
It features double metal shields (ZZ) on both sides, offering protection against dust and dirt, while maintaining low friction and smooth rotation.

Applications include:

• Electric motors and micro motors

• Cooling fans and ventilation systems

• Home appliances (washing machines, dryers, small drives)

• Precision machinery and hobby engineering

• Compact drives requiring long life and reliability

Key Features:

• ZZ double shields - sealed against dust, maintenance-free

• NSK quality - globally recognized reliability

• Compact 4x13x5 mm size - ideal for miniature and precise mechanisms

• Pre-lubricated - long-lasting grease inside

• Low friction & durability - efficient operation under continuous load

📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h shipping - fast and efficient order processing

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❓ FAQ (EN)

1. What does “ZZ” mean in 624 ZZ?
It means the bearing has metal shields on both sides, protecting against dust and extending service life.

2. Can this bearing be re-lubricated?
No, it comes pre-lubricated with factory grease and is maintenance-free.

3. Where is NSK 624 ZZ typically used?
In small motors, fans, household appliances, precision equipment, and model engineering.

4. What are the exact dimensions?
Inner Ø: 4 mm, Outer Ø: 13 mm, Width: 5 mm.

5. Can it work in humid environments?
It withstands standard humidity, but for heavy moisture, rubber-sealed variants (2RS) are better.