Introduction to UCP201, UCP202, and UCP203 Pillow Block Bearings
Pillow block bearings are essential components in machinery, designed to support rotating shafts while providing durability and ease of installation. The UCP201, UCP202, and UCP203 are popular models of pillow block bearings widely used across industries. These units combine a robust housing with high-quality bearings, ensuring reliable performance under varying loads and environmental conditions.
Key Features and Applications of UPC201, UCP202 and UCP203 Pillow Block Bearings
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UCP201 Bearing
- Features: Compact design, suitable for light-to-moderate loads. Equipped with double-lip seals for contamination resistance.
- Applications: Conveyor systems, agricultural equipment, and small industrial fans.
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UCP202 Bearing
- Features: Medium-duty capacity with enhanced load distribution. Includes a cast iron housing for improved rigidity.
- Applications: Food processing machinery, packaging lines, and HVAC systems.
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UCP203 Bearing
- Features: Heavy-duty construction, optimized for high radial loads. Features self-aligning capabilities for shaft misalignment compensation.
- Applications: Mining equipment, crushers, and heavy-duty pumps.
Comparison Table: UCP201 vs. UCP202 vs. UCP203
| Aspect | Common Features | Differences |
| Bearing Type | Pillow block bearing with spherical roller | UCP201: Light-duty; UCP202: Medium-duty; UCP203: Heavy-duty |
| Housing Material | Cast iron (corrosion-resistant) | All models share the same housing material |
| Seal Type | Double-lip rubber seals (standard) | UCP203 includes reinforced seals for harsh environments |
| Bore Diameter | Metric sizing (12–40 mm range) | UCP201: 12 mm; UCP202: 15 mm; UCP203: 17 mm (varies by exact model) |
| Load Capacity | Radial and axial load support | UCP203 offers the highest dynamic load rating (~20% > UCP201/UCP202) |
| Alignment | Self-aligning design | UCP203 has wider misalignment tolerance (±3°) vs. ±2° for UCP201/UCP202 |
| Typical Use | Shaft support in machinery | UCP201: Low-speed applications; UCP202: Moderate speeds; UCP203: High-stress |
Why Choose UCP Series Bearings?
- Versatility: Compatible with diverse industrial environments.
- Durability: Chrome steel bearings and robust housings extend service life.
- Ease of Maintenance: Grease fittings allow simple relubrication.
These pillow block bearings are ideal for applications requiring reliable shaft mounting, alignment flexibility, and resistance to dust/moisture. Select UCP201, UCP202, or UCP203 based on load requirements and operational conditions to optimize machinery performance.
Below is a summary of precision, grease, and clearance specifications for pillow block spherical bearings, formatted in English with technical terms12.
| Parameter | Description | Typical Value/Standard | Notes |
| Precision | Refers to dimensional and geometric accuracy (e.g., bore diameter tolerance, raceway roundness). | - ISO 492: Class P0 (Normal), P6 (Higher), P5 (Precision)27. | Higher precision (P5/P6) reduces vibration and noise in high-speed applications2. |
| Grease | Lubricant type and filling ratio for bearing operation. | - Grease Type: Lithium-based (general-purpose), polyurea (high-temperature)57.
- Filling: 30–40% of housing cavity5. | Over-greasing causes overheating; under-greasing increases wear5. |
| Radial Clearance | Internal gap between inner and outer rings under uninstalled conditions. | - Standard Range: C3 (greater clearance) for thermal expansion compensation17.
- Example: 0.015–0.285 mm (ball bearings)1. | Adjust clearance based on load and thermal conditions17. |
| Axial Clearance | Allowable axial displacement between rings. | - Self-aligning design: Compensates ±2°–3° misalignment27. | Critical for applications with shaft deflection or mounting errors7. |
Customization Welcomed:
We can print your brand (logo,artwork) on the shield or laser engraving your brand on the shield.
We can custom your packaging according to your design.
All copyright owned by clients and we promised don't disclose any information.
Packing and Shipping:
The deep groove ball bearings will be securely packaged individually, or tube packing or packed as customization packing
Shipping method.
Product Tags:
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Chrome Steel UCP 201 Bearing Self Aligning UCP202 UCP 203 Bearing Images
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