Ball bearings with Z-shields – Reliable Protection for High‑Performance Plastic Bearings

Z‑shields offer an effective solution for protecting ball bearings from external contamination. In SMG plastic bearings, they can be integrated on one or both sides, depending on the application. Since SMG plastic ball bearings operate completely lubrication‑free, they typically do not require classic sealing systems used in metal bearings.

Z‑shields prevent coarse dirt particles from entering the bearing and protect the raceways from contamination. This ensures stable running performance and significantly reduces wear — especially in environments where dust, moisture, or aggressive media are present.
Your Advantages at a Glance

• Effective protection against coarse contamination
• Maintenance‑free operation due to dry‑running polymer materials
• Extended service life thanks to clean and stable running conditions
• Flexible design options: single‑ or double‑sided shielding
• Cost‑efficient: no conventional sealing required

In SMG plastic ball bearings, Z‑shields are integrated through a precision‑machined groove on the inner or outer ring. This design ensures:

• secure positioning of the shield
• smooth and consistent running characteristics
• easy assembly and disassembly
• reliable performance under demanding operating conditions

Thanks to high‑performance polymer materials, these bearings are suitable for applications in packaging technology, conveying systems, water treatment, chemical processing, and hygienic or corrosion‑critical environments.

Looking for plastic ball bearings with Z‑shields or a custom‑engineered solution?

Contact us – we will develop the perfect bearing solution for your application.

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