Applications - Precision miniature bearing for industrial assemblies
The EZO 693 ZZ deep-groove ball bearing in size 3 mm inner diameter x 8 mm outer diameter x 4 mm width is engineered for compact, high-precision motion systems and rotating assemblies. With metal shields on both sides (“ZZ”), it protects against contamination and retains lubrication, making it an ideal unit bearing for applications such as miniature motors, servo drives, small gearboxes, precision instrumentation, and bearing housings in industrial and automation equipment. Because of its compact size and high reliability, this bearing is well suited for machine builders, OEM suppliers, and maintenance operations seeking a dependable component for challenging applications.
Key Advantages - High durability, shielded design and compact integration
This deep-groove ball bearing offers:
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Metal shields both sides (ZZ): providing protection against dust and debris, enhancing service life in industrial environments.
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Compact size (3x8x4 mm): supports high-speed rotation and low friction in tight spaces, enabling integration in miniature assemblies where footprint and precision matter.
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High durability and low maintenance: the robust construction supports long life in bearing housings and units subject to continuous operation.
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Industrial-grade unit bearing: Designed for applications in automation, bearing housings, precision drives, and small-scale mechanical systems needing reliable components.
Technical Specifications
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Product type: Deep-groove ball bearing (single row)
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Model: 693 ZZ (also marketed as S693-ZZ)
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Dimensions: d (inner diameter) = 3 mm | D (outer diameter) = 8 mm | B (width) = 4 mm
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Shielding: ZZ - metal shields on both sides
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Material: Chrome steel (standard), high quality manufacturing
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Suitable for: Bearing housings, miniature units, servo drives, precision instruments
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Advantages: high durability, shielded design, compact unit size
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FAQ
Q: What does the “ZZ” designation mean?
A: The suffix “ZZ” indicates that the bearing is equipped with metal shields on both sides, enhancing protection against contaminants and helping retain lubricant within the bearing.
Q: Why is a compact size such as 3x8x4 mm important?
A: A miniature bearing of this size allows integration into tight assemblies, enabling high-speed rotation and low friction in small drives, while still maintaining reliability and precision.
Q: In what types of applications is the EZO 693 ZZ commonly used?
A: It is commonly used in miniature motors, robotics, automation, instrumentation, CNC equipment and bearing housings where space is limited but performance and durability are critical.
Q: How to choose the right miniature bearing for a housing unit?
A: Verify the inner diameter (shaft size), outer diameter (housing bore), width (assembly space), shielding type, and operating conditions (speed, load, environment). Choosing the correct dimensions and shield type ensures optimum performance and longer service life.
