Deep Groove Ball Bearings
As essential components in power transmission systems, deep groove ball bearings offer versatile solutions for various industrial applications. Their simple design and high efficiency make them popular across multiple sectors.
How to Find Reliable Deep Groove Ball Bearings from China in 2025
The Chinese bearing market continues to evolve, with manufacturers improving quality standards. When sourcing:
- Verify ISO 9001 certification
- Check for ABEC ratings (1-9)
- Request material certificates
- Review production capacity
- Ask for third-party inspection reports
Leading platforms like Alibaba now feature verified suppliers with transaction histories and customer reviews.
What Buyers Should Know Before Buying Deep Groove Ball Bearings from China
Key considerations include:
- Minimum Order Quantities (typically 50-100 pieces)
- Lead times (4-8 weeks for custom orders)
- Shipping costs and import duties
- Payment terms (30% deposit common)
- Warranty coverage (usually 1 year)
Case Study: An automotive parts manufacturer reduced costs by 35% while maintaining quality by switching to a Tier 2 Chinese supplier.
Types of Deep Groove Ball Bearings
Common variations include:
| Type | Features |
|---|---|
| Single Row | Most common, handles radial and axial loads |
| Double Row | Higher load capacity, more rigid |
| Sealed/Shielded | Contamination protection, less maintenance |
| Stainless Steel | Corrosion resistant, food-grade applications |
Functions and features of Deep Groove Ball Bearings
These bearings excel at:
- Reducing friction between rotating parts
- Supporting both radial and axial loads
- Operating at high speeds (up to 15,000 rpm)
- Requiring minimal maintenance
- Offering long service life (typically 30,000-50,000 hours)
Modern designs incorporate advanced cage materials like polyamide for quieter operation.
Scenarios of Deep Groove Ball Bearings
Typical applications include:
- Electric motors (60% of industrial use)
- Automotive components (alternators, water pumps)
- HVAC systems (fans, blowers)
- Conveyor systems
- Agricultural machinery
A textile factory increased production line uptime by 22% after upgrading to premium deep groove ball bearings.
How to Choose Deep Groove Ball Bearings
Selection factors:
- Load requirements (static and dynamic)
- Operating speed
- Environmental conditions (temperature, contaminants)
- Precision needs (ABEC rating)
- Budget constraints
Tip: For high-vibration environments, consider bearings with special cage designs.
Deep Groove Ball Bearings Q & A
Q: What's the typical lifespan of these bearings?
A: Under normal conditions, expect 3-5 years of continuous operation. Proper lubrication can extend this significantly.
Q: How do Chinese bearings compare to European brands?
A: Quality gaps have narrowed. Top Chinese manufacturers now produce bearings matching ABEC 7 standards at 40-60% lower cost.
Q: What maintenance do they require?
A: Sealed units are maintenance-free. Open bearings need relubrication every 6-12 months depending on use.
Q: Can they handle axial loads?
A: Yes, they can support moderate axial loads in both directions, typically up to 25% of radial capacity.
Q: What's the price range?
A: Standard 6200 series bearings cost $2-$15 from China, with precision models reaching $50+.
