Product Overview The 688 single‑row miniature deep groove ball bearing is open‑type. It bears radial load plus slight bidirectional axial load, designed for compact high‑speed miniature equipment. 👉 Get a quote within 24 hours for your project 📌 Key Advantages Ultra‑thin miniature dimension for limited installation space Low friction for high‑speed running performance Supports radial and slight two‑way axial loads Open‑type design allows re‑lubrication Multiple seal options: