For Desert Cooler Applications
Product Overview
Sintered bearings, also known as oil-impregnated self-lubricating bearings, are manufactured using powdered metal technology. These bearings are specially designed for continuous operation in desert coolers, offering smooth rotation, low noise, and long service life without the need for frequent lubrication.
They are widely used in cooler fan motors, blower shafts, and pump motors, especially in high-temperature and dusty environments.
| Key Advantage | Description |
|---|---|
| Self-Lubricating | Pre-impregnated with oil; no external lubrication required |
| Low Maintenance | Ideal for continuous running applications |
| Silent Operation | Reduces noise and vibration |
| Long Service Life | Excellent wear resistance |
| Cost Effective | Lower operating and maintenance cost |
| Good Heat Dissipation | Suitable for high ambient temperatures |
| Dust & Dry-Run Resistant | Perfect for desert cooler conditions |
Disadvantages
- Limited Load Capacity compared to ball or roller bearings
- Not Suitable for Very High Speeds
- Oil Loss Possible at extremely high temperatures over long periods
- Limited Shock Load Resistance
Typical Applications
- Desert Cooler Motors
- Air Cooler Fan Shafts
- Blower Motors
- Ventilation Fans
- Small Electric Motors
- Household & Industrial Coolers
Material Grades
| Grade | Material Composition | Application |
|---|---|---|
| SAE 841 | Bronze (Cu–Sn) | Standard desert coolers, low noise |
| SAE 863 | Iron-based | Heavy-duty motors |
| Copper-Tin Graphite | Cu + Sn + Graphite | High-temperature & long-life use |
| Oil-Impregnated Bronze | Porous bronze with oil | Most common for coolers |
| Size | Standard Dimensions |
|---|---|
| Inner Diameter (ID) | 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm |
| Outer Diameter (OD) | 12 mm to 28 mm |
| Length (L) | 8 mm, 10 mm, 12 mm, 15 mm, 20 mm |
👉 Custom sizes and tolerances available as per motor design
| Specification | Details |
|---|---|
| Operating Temperature | -20°C to +120°C |
| Lubrication Type | Oil-impregnated |
| Porosity | 18% – 22% |
| Density | 6.4 – 6.8 g/cm³ |
| Surface Finish | Smooth, precision-machined |
Why Sintered Bearings for Desert Coolers?
Desert coolers operate in hot, dry, and dusty environments where conventional bearings fail quickly. Sintered bearings continuously release lubricating oil during operation, ensuring consistent performance, reduced friction, and extended motor life.
Packing & Supply
- Packed in oil-safe poly bags / boxes
- Bulk & OEM packing available
- Suitable for OEMs, motor manufacturers, and replacement market