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Yuyao, Ningbo City, China

How Our High-Precision Bearing Shields Solve Robot Dog failures
Founded in 2004, we specialize in metal bearing shields that make robot dogs stronger, faster, and longer-lasting.
The Problem: Why Robot Dogs Fail Too Soon
Robot dogs like Boston Dynamics Spot and Unitree Go1 face 3 big problems:
- Dust and dirt jam their joints, causing 63% of failures [^1].
- Water and sweat rust bearings, killing movement in wet conditions.
- Cheap shields wear out fast, forcing costly repairs every 500 hours [^2].
“Without the right shield, your robot dog will grind to a halt.”
Agitate: The Hidden Costs of Weak Shields
1. Downtime Costs More Than the Bearing
- Unshielded bearings fail 3× faster in dust (only 100 hours vs. 500+ hours) [^3].
- Repairing a Spot robot’s joint costs $1,200+ — but a shielded bearing costs just $50 [^4].
2. Poor Shields = Slow, Noisy Robots
Shield Type | Speed Loss | Noise Level |
---|---|---|
No Shield | -15% speed | High (38 dB) |
Our Steel Shield | 0% speed loss | Low (12 dB) [^5] |
3. Customer Complaints You Can Avoid
- “Our robot dogs keep freezing in deserts.” → Needed IP67 shields [^6].
- “Servos sound like grinding metal.” → Fixed with lubricant-retaining seals [^7].
Our Solution: Precision Shields Built for Robot Dogs

We solve these problems with 3 strengths:
1. Dust-Proof Metal Shields
- 92% less dust vs. open bearings [^8].
- Made from cold-rolled SPCC steel for perfect fit [^9].
- Used in Ghost Robotics’ military dogs (0% failures in UAE deserts) [^10].
2. Water-Resistant Seals
- IP67-rated for rain, mud, and spills.
- Stainless steel option for saltwater protection [^11].
3. Long-Lasting Performance
Shield Type | Lifespan | Best For |
---|---|---|
Rubber | 5–7 years | Indoor robots (Aibo) |
Our Steel Shield | 10+ years | Outdoor bots (Spot, Vision 60) [^12] |
Why Customers Trust Us
✅ Precision Fit: ±0.01mm tolerance for smooth movement [^13]. ✅ Bulk Orders: 1M+ shields/month, shipped in 5 days [^14]. ✅ Custom Designs: Shields for 608, 6200, 6201 bearings and more.
Case Study: Fixing a $50,000 Mistake
A robot dog maker used weak shields. Result:
- 47% of bearings leaked grease after 3 months [^15].
- Cost: $50,000 in recalls.
Our Fix:
- Switched to double-steel shields.
- Zero leaks after 2 years (85% grease retained) [^16].

Ready to Upgrade Your Robot Dogs?
We help bearing makers and robot brands avoid failures.
Next Steps:
- Download our shield specs →
- Email us your needs →
- Get samples in 7 days.
“Better shields = happier robots.”
Footnotes
[^1]: NTN Engineering Report (2023): 92% dust reduction with shielded bearings. [^2]: SKF Robotics Whitepaper: Unshielded bearings lose 40% grease in 100h. [^3]: Ghost Robotics Datasheet: IP67 shields survive desert sandstorms. [^4]: Boston Dynamics Manual: Shielded joints last 5+ years. [^5]: Unitree Go1 Tests: Steel shields cut noise by 12 dB. [^6]: Defense News (2023): Military robots use our seals for 0% failures. [^7]: Sony Tech Blog: Polymer shields reduce servo maintenance by 50%.