PU0312-3 PU Covered Bearing 3x12x3mm - Shielded - Miniature
UPC: 00193019311103
Type: Deep Groove Ball Bearing
Material: GCr15 bearing steel
Cover Material: Polyurethane(PU)
Seals: Metal Shields
Polyurethane Shielded Ball Bearing 3mm x 12mm x 3mm
✔️ PU0312-3 - PU-Coated, Metal Shields, High Impact Resistance
The PU0312-3 is a compact deep groove ball bearing featuring durable GCr15 bearing steel with a polyurethane (PU) outer coating. This hybrid design offers a solid balance of impact resistance and smooth rolling. Metal shields on both sides help block out debris while maintaining fast, low-friction rotation. Great for precision tools, small rollers, or shock-prone setups.
✅ Pack size: 1 bearing
✅ Inner diameter: 3mm
✅ Outer diameter: 12mm
✅ Width: 3mm
✅ Core material: GCr15 bearing steel
✅ Cover material: Polyurethane (PU)
✅ Closures: Double metal shields
✅ High abrasion and impact resistance
✅ Ideal for shock-loaded or vibration-sensitive applications
Dimension Table:
| ID (d) | OD (D) | Width (B) | Core Material | Cover Material | Seals |
|---|---|---|---|---|---|
| 3mm | 12mm | 3mm | GCr15 Steel | Polyurethane | Metal Shields |
💡 Why use polyurethane-coated bearings in mechanical systems?
They’re great for dampening shock while staying tough:
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PU provides superior tear and abrasion resistance
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Handles impact better than plastic or rubber-coated options
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Ideal for quiet, vibration-sensitive rollers or guides
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Metal shields add protection without drag
When you want smooth, quiet, and impact-tough performance, this little bearing has it all. Add it to your cart and keep things rolling strong!