- 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: open, ZZ, 2RS available
| Brand Name: | GQZ |
| Model Number: | 688 |
| MOQ: | 100.PCS |
| Price: | negotiation |
| Delivery Time: | 5 working days |
| Payment Terms: | T/T |
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
👉 Helps reduce maintenance cost and improve machine performance
This bearing is widely used in:
👉 Ideal for customers looking for reliable and long‑life bearing solutions
表格
| Item | Parameter |
|---|---|
| Model | 688 |
| Inner Diameter (ID) | 8 mm |
| Outer Diameter (OD) | 16 mm |
| Width | 4 mm |
| Structure | Single‑row miniature deep groove ball bearing |
| Sealing Type | Open type |
| Material | Chrome steel |
| Dynamic Load Rating | 1.55 kN |
| Static Load Rating | 0.59 kN |
| Limiting Speed(Grease) | 42000 rpm |
| Limiting Speed(Oil) | 50000 rpm |
| Weight | 0.0032 kg |
| Gear Type | N/A |
👉 Full technical data and drawings available upon request
👉 We focus on quality, reliability, and long‑term partnership
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Q1: Are sealed versions of 688 available?
Yes, 688ZZ metal shield and 688‑2RS rubber seal options are available.
Q2: Can 688‑2RS replace open‑type 688 directly?
Dimensions are interchangeable, sealed versions have lower limiting speed.
Q3: Do you support OEM private logo?
Yes, private logo printing is supported, certain MOQ required.
Q4: What is your warranty term?
12‑month warranty against manufacturing defects, excluding man‑made damage and improper installation.