- 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
688 Miniature Deep Groove Ball Bearing 8×16×4mm Open Type For 3D Printer Small Motor RC Model OEM GQZ Bearing
Price:
negotiation
MOQ:
100.PCS
Delivery Time:
5 working days
Brand:
GQZ
Product Description
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
???? Helps reduce maintenance cost and improve machine performance
???? Applications
This bearing is widely used in:
- 3D printers
- Small electric motors
- RC hobby models
- Office automation equipment
- Miniature transmission units
???? Ideal for customers looking for reliable and long‑life bearing solutions
Technical Specifications
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
???? Why Choose GQZ Bearing
- 25+ years experience in industrial bearing manufacturing
- Exported to 50+ countries worldwide
- Rich experience in OEM & custom projects
- Strict quality control: raw material, precision machining, heat treatment, clearance & rotation testing, final inspection
- Fast response within 24 hours
- Stable supply for long‑term cooperation
???? We focus on quality, reliability, and long‑term partnership
???? CTA
Looking for a reliable bearing supplier? Send your inquiry and get fast quotation, engineer support and competitive factory price within 24 hours.
FAQ
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.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Guangqiang Bearing Trade Co.,Ltd
Location
No. 650 North Xingyuan Road, Beitang District, Wuxi, China.
Contact Person
Mike Zhang