SF 693 H ZZ EZO 3x8x4 mm Flanged Deep-Groove Ball Bearing

Applications - precise flanged bearing for industrial assemblies

The SF 693 H ZZ EZO bearing (3 mm inner diameter x 8 mm outer diameter x 4 mm width) is a compact, single-row deep-groove ball bearing engineered for use in industrial applications where space, precision and mounting convenience matter. With a built-in flange (kołnierz) and protective metal shields (ZZ) on both sides, this unit is ideal for bearing housings, mechanical assemblies, gearboxes, small motors and precision drives where reliable rotation, low friction and secure mounting are required. The flange simplifies positioning in an assembly and helps maintain alignment in an obudowa łożyskowa or unit housing, enabling streamlined integration for manufacturers and maintenance operations alike.

Key Benefits - high durability, protective design and compact integration

This flanged ball bearing offers several advantages for B2B procurement:

• Flange mounting: The flange provides secure seating and simplifies installation in housings or accessory supports, reducing axial movement and ensuring reliable location in machine frames or bearing assemblies.

• Protective shields (ZZ): Metal shields on both sides safeguard the internal balls and raceways from contamination and retain lubrication, contributing to enhanced durability and longer service life in industrial environments.

• Precision dimensions (3x8x4 mm): A small form-factor bearing ideal for compact drives, instrumentation, robotic assemblies and other high-precision units where “miniature bearing” performance is needed in demanding environments.

• Industrial-grade build: Suitable for industrial applications where high repeatability, low noise and long-life performance are required - supported by ease of maintenance and direct replacement in standard housings.

• Rapid availability: Stocked in Lublin and delivered 24h, meeting the needs of OEMs, machine builders and maintenance teams requiring fast turnaround for bearing replacements and spares.

Technical Specifications

• Product: Deep-groove ball bearing, flanged type

• Model: SF 693 H ZZ EZO

• Dimensions: d = 3 mm | D = 8 mm | B = 4 mm

• Flange: yes (integral flange on outer ring)

• Shields: ZZ (metal shields both sides)

• Configuration: single-row deep groove

• Suitable for: small shaft drives, gearboxes, housings, robotic joints, precision mechanisms

• Advantages: compact size, precise rotation, flanged mounting, protective shields
  📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
  🚚 24h Delivery - fast processing for industrial clients

FAQ

Q: What does the “H ZZ” designation in the model SF 693 H ZZ indicate?
A: The “H” typically refers to a higher load or precision variant of the series, and “ZZ” means the bearing includes metal shields on both sides—providing protection from debris and improved retention of lubrication.

Q: Why use a flanged bearing rather than a standard one?
A: A flanged bearing incorporates an integral mounting flange on the outer ring, allowing straightforward axial positioning in a housing without additional rings or shoulders. This simplifies installation and improves stability in the housing bore, especially in compact or precision assemblies.

Q: How does a dimension of 3x8x4 mm influence application choice?
A: These compact dimensions mean the bearing is suited for miniature drives, instrumentation, small motors, conveyors, or assembly modules where space is constrained but smooth rotation, low friction and long service life are still required.

Q: What are the key checks when selecting a miniature bearing like SF 693 H ZZ?
A: Verify shaft diameter (3 mm), housing bore (8 mm), width (4 mm) and ensure compatibility with mounting (flange), shielding (ZZ) and load conditions (radial and light axial). Check for required precision, operating speed, environment, and machine uptime.